Daikin ESIE13-02 Service Manual
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Daikin ESIE13-02 Service Manual

Daikin ESIE13-02 Service Manual

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Service Manual
Hybrid
- Gas boiler
- EHYKOMB33AA / EHYKOMB33AA
- Hydro-box
- EHYHBH05AAV3 / RHYHBH05AAV3
- EHYHBH08AAV3 / RHYHBH08AAV3
- EHYHBX08AAV3 / RHYHBX08AAV3
- Outdoor unit
- EVLQ05CAV3 / RVLQ05CAV3
- EVLQ08CAV3 / RVLQ08CAV3
ESIE13-02

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Summary of Contents for Daikin ESIE13-02

  • Page 1 ESIE13-02 Service Manual Hybrid - Gas boiler - EHYKOMB33AA / EHYKOMB33AA - Hydro-box - EHYHBH05AAV3 / RHYHBH05AAV3 - EHYHBH08AAV3 / RHYHBH08AAV3 - EHYHBX08AAV3 / RHYHBX08AAV3 - Outdoor unit - EVLQ05CAV3 / RVLQ05CAV3 - EVLQ08CAV3 / RVLQ08CAV3...

  • Page 2: Table Of Contents

    ESIE13-02 Introduction About This Manual ..................About the Documentation ................For the User ....................For the Installer .................... Part 1 System Outline Description System Build-up................... Components and Connections ..............Functionality System Operation ..................Wiring Diagrams PCB Description ..................Overview Switch Box ...................
  • Page 3 ESIE13-02 Outdoor Unit Nominal Capacity and Nominal Input............Technical Specifications ................Part 3 Commissioning Part 4 Troubleshooting Troubleshooting General Troubleshooting Flowchart ............. Overview of General Problems ..............Fault-diagnosis by Remote Controller............Fault-diagnosis Manual Reset in the Memory..........Troubleshooting by LED on the Hydro-box PCB .........
  • Page 4 ESIE13-02 Error Codes: Outdoor Units “E1” Outdoor Unit PCB Abnormality.............. 103 “E3” Abnormal High Pressure (Detected by the HPS)........104 “E4” Actuation of Low Pressure Sensor ............106 “E5” Compressor Motor Lock ............... 109 “E7” Malfunction of Outdoor Unit Fan Motor..........111 “E9”...
  • Page 5 ESIE13-02 Part 5 Repair Tips and Tricks Part 6 Maintenance Maintenance Schedule Maintenance ....................168 Table of Contents...

  • Page 6: Introduction

    Purpose of this This service manual contains all the information you need to carry out the necessary repair and manual maintenance tasks for the Daikin Altherma Hybrid. Six parts This service manual consists of an introduction and six parts: Part See page Part 1–System Outline...
  • Page 7 ESIE13-02 Introduction Heat pump Outdoor Manual Contents boiler sec- unit section tion 4PEN349587-1A_2013_05_tcm135-2 installation manual 90364 4PEN353067-1_2013_07_tcm135-29 installation and 0386 operation manual 4PEN344906-1_2013_02_tcm135-29 installation manual 0349 4PEN353731_1B_2013_10_tcm135- field setting table 304271 4PEN349588-1_2013_05_tcm135-29 operation manual 0399...

  • Page 8: About The Documentation

    Introduction ESIE13-02 About the Documentation The original documentation is written in English. All other languages are translations.  The precautions described in this document cover very important topics, follow them carefully.  All activities described in the installation manual must be performed by an authorized installer.

  • Page 9: For The User

    ESIE13-02 Introduction For the User If you are not sure how to operate the unit, contact your installer.  The appliance is not intended for use by persons, including children, with reduced physical,  sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

  • Page 10: For The Installer

    Improper installation or attachment of equipment or accessories could result in elec- tric shock, short-circuit, leaks, fire or other damage to the equipment. Only use acces- sories, optional equipment and spare parts made or approved by Daikin. WARNING Make sure installation, testing and applied materials comply with applicable legisla- tion (on top of the instructions described in the Daikin documentation).

  • Page 11: Installation Site

    ESIE13-02 Introduction 1.4.2 Installation site Provide sufficient space around the unit for servicing and air circulation.  Make sure the installation site withstands the unit’s weight and vibration.  Make sure the area is well ventilated.  Make sure the unit is level.
  • Page 12 Introduction ESIE13-02 1.4.4 Brine If applicable. See the installation manual or installer reference guide of your application for more information. WARNING The selection of the brine MUST be in accordance with the applicable legislation. WARNING Take sufficient precautions in case of brine leakage. If brine leaks, ventilate the area immediately and contact your local dealer.
  • Page 13 ESIE13-02 Introduction 1.4.6 Electrical DANGER: RISK OF ELECTROCUTION Turn OFF all power supply before removing the switch box cover, connecting  electrical wiring or touching electrical parts. Disconnect the power supply for more than 1 minute, and measure the voltage at ...
  • Page 14 Introduction ESIE13-02 1.4.7 The gas boiler is factory set to: The type of gas quoted on the type identification plate or on the setting type identification plate.  The quitted gas pressure.  Operate the unit ONLY with the gas type and gas pressure indicated on these type identification plates.
  • Page 15 ESIE13-02 Introduction 1.4.9 Local legislation Local regulations It is law that all gas appliances are installed by a gas safe registered competent engineer and in for UK accordance with the following recommendations: Current Gas Safety (Installation and Use) Regulations. ...
  • Page 16 Introduction ESIE13-02...

  • Page 17: System Outline

    ESIE13-02 Part 1 System Outline What is in this part? This part contains the following chapters: Chapter See page 1–Description 2–Functionality 3–Wiring Diagrams Part 1 – System Outline...

  • Page 18: Description

    Description ESIE13-02 Description System Build-up The system combines a gas condensing boiler and a heat pump (hydro-box) for space heating and domestic hot water. Depending on the position of the 3-way valve, the gas condensing boiler can either be bypassed or not. The heat pump can either operate or not, depending on the active operation mode (heat pump only, gas condensing boiler only or hybrid (= heat pump and gas condensing boiler)).

  • Page 19: Components And Connections

    ESIE13-02 Description Components and Connections 1.2.1 Gas condensing boiler Item Description Item Description Gas valve Air supply cap Boiler control panel Flue pipe adapter (use ONLY in combination with the accompanying elbow in flue sets) Sensor S1 Connection block/terminal strip X4...
  • Page 20 Description ESIE13-02 1.2.2 Hydro-box Item Description Gas in Cold water in Refrigerant gas connection Refrigerant liquid connection Heating return Heating flow Hot water out Part 1 – System Outline...
  • Page 21 ESIE13-02 Description 1.2.3 Outdoor unit Item Description Terminal strip with earth terminal Gas stop valve (ø15.9 CuT) Service port Liquid stop valve (ø6.4 CuT) Part 1 – System Outline...

  • Page 22: Functionality

    Functionality ESIE13-02 Functionality System Operation 2.1.1 Heating Mode Heat pump only The heat pump and pump are enabled, the gas boiler is bypassed. operation Space heating is enabled. Allowable outdoor temperature range: -25 to 25°C. PUMP RADIATOR Outdoor unit Indoor unit...
  • Page 23 ESIE13-02 Functionality Quick heatup HEATPUMP MODE heatpump operation boiler operation at highest setpoint SP+2 SP+1 set in weather dependent (or 60 C if fixed heating water temp. control) (*) SP-1 SP-2 Time Part 1 – System Outline...
  • Page 24 Functionality ESIE13-02 Hybrid operation The heat pump, pump and gas boiler are enabled. mode Space heating is enabled. Allowable outdoor temperature range: -25 to 25°C. PUMP RADIATOR Outdoor unit Indoor unit Plate heat exchanger Gas boiler 3-way valve Part 1 – System Outline...
  • Page 25 ESIE13-02 Functionality HYBRID MODE heatpump operation boiler operation (*) SP+2 SP+1 room temperature SP-1 SP-2 Time Part 1 – System Outline...
  • Page 26 Functionality ESIE13-02 Gas boiler only The pump and gas boiler are enabled. mode Space heating is enabled. It works alternating depending on the demand of domestic hot water. If there is a domestic hot water demand, the unit stops serving the heating and turns in domestic hot water mode.
  • Page 27 ESIE13-02 Functionality 2.1.2 Domestic Hot Water Domestic hot water The heat pump and the pump are idle, the gas boiler is enabled. only mode Space heating is disabled. It works alternating depending on the demand of domestic hot water. PUMP...
  • Page 28 Functionality ESIE13-02 Domestic hot water Depending on the mode (heat pump only / hybrid / gas boiler only) we can generate domestic hot water and space heating and heating as follows: mode During heat pump only operation, the heat pump remains operational and the gas boiler is ...
  • Page 29 ESIE13-02 Functionality Return temperature below 18°C DURING DEFROST boiler operation heatpump operation (defrosting) return temp. hysteresis of ~ 10°C 25°C Time NOT DURING DEFROST : start up of heatpump mode, return <15°C heatpump operation 18°C 15°C inlet temp. boiler operation (*) Time NOT DURING DEFROST : heatpump mode, return <15°C...
  • Page 30 Functionality ESIE13-02 Economical mode, capacity shortage heatpump boiler leaving water setpoint leaving water will drop leaving below setpoint due to water capacity shortage of the heatpump. Time ±13 min. Equilibrium point (operation of the equilibrium point is independant of ecological or economical operation)
  • Page 31 ESIE13-02 Functionality Economic When the heat pump operates at the break-even COP, the cost of 1kWh thermal output produced by the heat pump is equal to the cost of 1kWh thermal output produced by the boiler. The break-even COP is dependent on the electricity price [€/kWh], the gas price [€/kWh] and the boiler’s thermal efficiency [%] (considered as a fixed value, independent of flow temperature, return temperature and ambient temperature).

  • Page 32: Wiring Diagrams

    Wiring Diagrams ESIE13-02 Wiring Diagrams PCB Description 3.1.1 Gas condensing boiler Part number Description Earth connections heat exchanger Spark plug cover Boiler controller Earth connections boiler controller Fuse (3.15 A T) Gas valve and ignition unit Ionisation/ignition probe Main voltage...

  • Page 33: External Connection Diagram

    ESIE13-02 Wiring Diagrams 3.1.2 External connection diagram For more details check unit wiring diagram. Part 1 – System Outline...

  • Page 34: Overview Switch Box

    Wiring Diagrams ESIE13-02 Overview Switch Box Part number Description Digital I/O PCB, receiver PCB (wireless ON/OFF thermostat, PC= power circuit) (optional) Demand PCB (optional) TR1, TR2 Power supply transformer Main PCB (hydro) Connector Terminal strip The next two figures ("PCB: part 1" and "PCB: part 2") show the wiring diagram of the hybrid PCB. The different components are mentioned either on "PCB: part 1"...
  • Page 35 ESIE13-02 Wiring Diagrams Part 1 – System Outline...
  • Page 36 Wiring Diagrams ESIE13-02 Part 1 – System Outline...
  • Page 37 ESIE13-02 Wiring Diagrams For the description of each part number, refer to the table below (note that the options that go together with the hybrid are the same options as those for Altherma LT): Part number Description Main PCB (hydro)

  • Page 38: Cable Dimensions

    Wiring Diagrams ESIE13-02 Cable Dimensions Part 1 – System Outline...
  • Page 39 ESIE13-02 Wiring Diagrams Part 1 – System Outline...

  • Page 40: Piping Diagram

    Wiring Diagrams ESIE13-02 Piping Diagram Item Description Space heating / water in Space heating / water out Shut off valve with drain / fill valve (field installation) Expansion vessel Filter Pump Plate heat exchanger Air purge Flow sensor 3-way valve...

  • Page 41: Specifications

    ESIE13-02 Part 2 Specifications What is in this part? This part contains the following chapters: Chapter See page 1–Gas Condensing Boiler 2–Hydro-box 3–Outdoor Unit Part 2 – Specifications...

  • Page 42: Gas Condensing Boiler

    Gas Condensing Boiler ESIE13-02 Gas Condensing Boiler Technical Specifications GAS MODULE INDOOR UNIT *EHYKOMB33AA Function Heating only Thermal load (Hi) Min. - Max. 7,5-32,7 Heating power CH Min. - Max. 80/60 7,9-31,9 Efficiency CH 80/60 Efficiency CH 40/30 (30%) Heating power DHW Min.
  • Page 43 ESIE13-02 Gas Condensing Boiler Gas type Natural gas H Propane P Gas category G31 (propane) 20 mBar 29 mBar 8.4 - 9.6 9.4 - 10.8 % at low setting (L) ( (with opened casing) 8.6 - 9.6 9.8 - 10.8...

  • Page 44: Hydro-Box

    Hydro-box ESIE13-02 Hydro-box Technical Specifications EHYHBH05 EHYHBH08 EHYHBX08 Casing Colour White Dimensions Unit Height Width Depth Weight Net weight Main compo- Pump Type DC motor nents Nr. of speed Inverter controlled Power input Water side heat Type Brazed plate exchanger...
  • Page 45 ESIE13-02 Hydro-box Operation range Outdoor tempera- Space cooling °C 10 ~ 43 (heat pump oper- ture Space heating °C -25 ~ 25 ation) (heat pump) Water tempera- Space cooling °C 5 ~ 22 ture Space heating °C 15 ~ 55...

  • Page 46: Nominal Capacity And Nominal Input

    Outdoor Unit ESIE13-02 Outdoor Unit Nominal Capacity and Nominal Input For combination indoor units and Outdoor units EHYRLQ005 EHYRLQ008 EHYRLQ008 outdoor units Indoor units Indoor H/P module EHYHBH05 EHYHBH08 EHYHBX08 Condition 1 Heating Minimum 1,80 1,80 1,80 capacity Nominal 4,40...
  • Page 47 ESIE13-02 Outdoor Unit Technical Specifications Casing Colour Ivory white Material <Polyester painted galvanised steel> Dimensions Packing Height Width Depth Unit Height Width Depth Weight Machine weight: ERLQ004* / 54 / 56 ERLQ006* & ERLQ008* Gross weight: ERLQ004* / ERLQ006* 57 / 59 &...
  • Page 48 Outdoor Unit ESIE13-02 Operation Heating (heat °CDB pump) range °CDB Cooling °CWB °CWB Sound level Heating (heat Sound power 61 / 61 / 62 (nominal) pump) (4/6/8) Sound pressure 48 / 48 / 49 (4/6/8) Cooling Sound power 63 / 63 / 63...
  • Page 49 ESIE13-02 Outdoor Unit Notes (1) See operation range drawing. (*) Range increase by support backup heater. (**) Range increase by support booster heater or backup heater. (2) The sound pressure level is measured via a microphone at a certain distance from the unit. It is a relative value depending on the distance and acoustic environment.
  • Page 50 Outdoor Unit ESIE13-02 Part 2 – Specifications...
  • Page 51 ESIE13-02 Part 3 Commissioning See ‘Note’ on page 6. Part 3 – Commissioning...
  • Page 52 ESIE13-02 Part 3 – Commissioning...
  • Page 53 ESIE13-02 Part 4 Troubleshooting What is in this part? This part contains the following chapters: Chapter See page 1–Troubleshooting 2–Error Codes: Gas Condensing Boiler 3–Error Codes: Hydro-box 4–Error Codes: Outdoor Units 5–Error Codes: System Malfunctions 6–Additional Checks for Troubleshooting Part 4 – Troubleshooting...

  • Page 54: General Troubleshooting Flowchart

    Troubleshooting ESIE13-02 Troubleshooting General Troubleshooting Flowchart Refer to "Remote controller display Troubleshooting by Wait until Turn the power supply remote controller malfunction code and contents". power failure switch ON or replace malfunction code. is over. the fuse. (1) The operation circuit fuse is disconnected or is making poor contact.

  • Page 55: Overview Of General Problems

    Under no circumstances safety devices may be bridged or changed to a value other than the factory setting. If the cause of the problem cannot be found, call your local Daikin dealer. If the pressure relief valve is not working correctly and is to be replaced, always reconnect the flexible...

  • Page 56: Equipment Does Not Operate

    Troubleshooting ESIE13-02 1.2.1 Equipment does not Operate ERHQ011~016* Applicable model ERLQ004~016* Error detection method Error generating condition Supposed causes Fuse blown or disorder of contact in operation circuit  Faulty operation switch or contact point  Faulty high pressure switch ...

  • Page 57: Indoor Pump Operates, But Compressor Does Not

    ESIE13-02 Troubleshooting 1.2.2 Indoor Pump Operates, but Compressor does not ERHQ011~016* Applicable model ERLQ004~016* Error detection method Error generating condition Supposed causes Faulty thermistor  Faulty indoor/outdoor unit PC board  Faulty magnetic switch  Faulty power transistor  Faulty compressor ...

  • Page 58: Outdoor Unit

    Troubleshooting ESIE13-02 Troubleshooting · Hydro-box pump runs at set flow rate. Is setting A.2.1.9 pump operation mode set to Normal operation. (0) = continuous pump operation? Is the power switch OFF or the fuse for Turn on the power power switch switch or replace fuse.

  • Page 59: Cooling/Heating Operation Starts But Stops Immediately

    ESIE13-02 Troubleshooting 1.2.3 Cooling/Heating Operation Starts but Stops Immediately ERHQ011~016* Applicable model ERLQ004~016* Error detection method Error generating condition Supposed causes Excess charge of refrigerant  Air intrudes into refrigerant system  Faulty pressure switch  Faulty magnetic switch for outdoor unit fan motor ...
  • Page 60 Troubleshooting ESIE13-02 Troubleshooting Is the Is the remote type of remote controller controller displaying the Diagnose based on the wired or wireless? t-symbol? error code on remote controller Heating: Hydro-box Cooling: Outdoor unit Does the pump/fan rotate? Malfunction of fan motor Check the magnetic switch and aux.

  • Page 61: After Unit Shuts Down, It Cannot Be Restarted For A While

    ESIE13-02 Troubleshooting 1.2.4 After Unit Shuts Down, It cannot be Restarted for a While ERHQ011~016* Applicable model ERLQ004~016* Error detection method Error generating condition Supposed causes Overcurrent relay (for compressor)  Compressor protection thermostat  Overcurrent relay may act due to the following reasons: ...
  • Page 62 Troubleshooting ESIE13-02 Troubleshooting Turn the operation switch ON and OFF, then wait at ON side. Does the unit Normal. Unit is in 3-min start operation after 3 standby mode minutes? [Electric system] Power supply voltage is within ±10 % of Contact power company.

  • Page 63: Equipment Produces Loud Noise Or Shakes

    ESIE13-02 Troubleshooting 1.2.5 Equipment Produces Loud Noise or Shakes ERHQ011~016* Applicable model ERLQ004~016* Error detection method Error generating condition Supposed causes Faulty installation  Excess charge of refrigerant  Air intrudes into refrigerant system  Flushing noise due to refrigerant shortage. (Sound of shoo...) ...
  • Page 64 Troubleshooting ESIE13-02 Troubleshooting [Installation work side] Does the noise generate with Correction of installation vibration of whole ceilings and walls? Reinforcement for ceilings or walls Does the noise generate with Insert shock absorber in vibration of unit mounting mounting section, or strengthen section? the mounting section.

  • Page 65: User Interface Displays "Busy

    ESIE13-02 Troubleshooting “Busy” 1.2.6 User Interface Displays EHB/V*CA Applicable model Error detection method Error generating condition Supposed causes Troubleshooting Trouble generates just after power supply ON The unit is checking to confirm that remote controller is normal. Indication appears for short time.

  • Page 66: The Unit Is Turned On (D Led Is Lit) But The Unit Is Not Heating

    Troubleshooting ESIE13-02 1.2.7 The Unit is Turned on (d LED is lit) but the Unit is not Heating or Cooling as Expected EHB*CA, EHV*CA, ERHQ011~016*, ERLQ004~016* Applicable models Error detection method Error generating condition Supposed causes - corrective action Possible causes Corrective action The temperature setting is not correct.

  • Page 67: The Unit Is Turned On But The Compressor Is Not Starting

    ESIE13-02 Troubleshooting 1.2.8 The Unit is Turned on but the Compressor is not Starting (Space Heating or Domestic Heating) EHB*CA, EHV*CA, ERHQ011~016*, ERLQ004~016* Applicable models Error detection method Error generating condition Supposed causes - corrective action Possible causes Corrective action...

  • Page 68: Pump Is Making Noise (Cavitation)

    Troubleshooting ESIE13-02 1.2.9 Pump is Making Noise (Cavitation) EHB*CA, EHV*CA Applicable models Error detection method Error generating condition Supposed causes - corrective action Possible causes Corrective action There is air in the system. Purge air. Water pressure at pump inlet is too low.

  • Page 69: The Water Pressure Relief Valve Opens

    ESIE13-02 Troubleshooting 1.2.10 The Water Pressure Relief Valve Opens EHB*CA, EHV*CA Applicable models Error detection method Error generating condition Supposed causes - corrective action Possible causes Corrective action The expansion vessel is broken. Replace the expansion vessel. The water volume in the installation is too high.

  • Page 70: The Water Pressure Relief Valve Leaks

    If you do not hear a clacking sound, contact  your local Daikin dealer. In case the water keeps running out of the  unit, close both the water inlet and outlet shut-off valves first and then contact your local Daikin dealer.

  • Page 71: The User Interface Does Not Display Certain Screens

    ESIE13-02 Troubleshooting 1.2.12 The User Interface Does Not Display Certain Screens (RT, LWT, Tank, Ext RT) EHB*CA, EHV*CA Applicable models Error detection method Error generating condition Supposed causes - corrective action Possible causes Corrective action The tank-screen is not visible.

  • Page 72: Domestic Hot Water Capacity Shortage At Low Outdoor Tem

    + 3~5°C”  In case the Daikin Altherma LT has no spare capacity compare to the space heating load at low Ta (see equilibrium temperature [5-01]), the priority shall be given towards space heating (see anti-recycling timer [8-02] and maximum running timer for domestic hot water [8-01]) and domestic hot water shall be covered/supported by the electrical heater (To guarantee sufficient domestic hot water and reasonable domestic hot water heat-up times).

  • Page 73: Space Heating Capacity Shortage At Low Outdoor Tempera

    ESIE13-02 Troubleshooting 1.2.14 Space Heating Capacity Shortage at Low Outdoor Temperatures EHB*CA, EHV*CA Applicable models Error detection method Error generating condition Supposed causes - A. General: independent from DHW - setpoint mode corrective action Possible causes Corrective action The settings related to space heating operation...

  • Page 74: Room Temperature Set Point Isn't Reached Or Increases Too

    Troubleshooting ESIE13-02 1.2.15 Room Temperature Set Point Isn’t Reached or Increases Too Slow Applicable models EHB*CA, EHV*CA Error detection method Error generating condition Supposed causes - corrective action Possible causes Corrective action See possible causes of item “2 Possible space See corrective actions of item “2 Possible space...

  • Page 75: Fault-Diagnosis By Remote Controller

    ESIE13-02 Troubleshooting Fault-diagnosis by Remote Controller Explanation If operation stops due to malfunction (error or warning), the user interface home screen will indicate the t-symbol. The malfunction code plus a short description of the error is displayed when pushing the t-button on the user interface. In case of a warning, the unit will continue operation. In case of an error, the unit will preventively shut down.

  • Page 76: Fault-Diagnosis Manual Reset In The Memory

    Troubleshooting ESIE13-02 Fault-diagnosis Manual Reset in the Memory Explanation In order to reset the malfunction code in the remote controller memory, follow actions has to be performed. Remark For some malfunction codes it’s required to manually reset the malfunction code in the memory before the unit can be restarted.
  • Page 77 ESIE13-02 Troubleshooting 1.4.1 Remote Controller Display Malfunction Code and Contents Malfunction code Contents/Processing Remarks Inlet water temperature thermistor abnormality Outlet water temperature thermistor abnormality Water heat exchanger freeze-up abnormality Water flow abnormality Outlet water temperature too high Outlet water temperature too high...
  • Page 78 Troubleshooting ESIE13-02 Malfunction code Contents/Processing Remarks Lack of gas malfunction Abnormal suction pipe temperature Abnormal power supply voltage Including malfunction of K10R, K11R Underfloor heating screed dry-out error Can only be reset when in installer level U4/UF Failure of transmission (between hydro-box and outdoor...
  • Page 79 ESIE13-02 Troubleshooting Troubleshooting by LED on the Hydro-box PCB Overview Troubleshooting can be carried out by HAP LED (green). (Blinks when normal) : LED on / : LED off / : LED blinks Microcomputer Normal Monitor Contents/Processing HAP (LED-A) Failure of hydro-box PC board assembly (Note 5) Malfunction of power supply or failure of PC board assembly or broken transmission wire between indoor and outdoor unit.

  • Page 80: Overview Of Error Codes

    Troubleshooting ESIE13-02 Overview of Error Codes Abbreviations DHW= domestic hot water SPH= space heating BUH= back-up heater BSH= booster heater PHE= plate heat exchanger 1.6.1 Hydro-box Malfunction Overview Remote Contents of Malfunction Details of Controller Malfunction Display (Reference Page) Return water temperature thermistor abnormality...
  • Page 81 ESIE13-02 Troubleshooting 1.6.2 Outdoor Unit Malfunction Overview Remote Contents of Malfunction Details of Controller Malfunction Display (Reference Page) Outdoor unit PC board malfunction Abnormality of high pressure (HPS) Abnormality of low pressure (outdoor) Compressor motor lock malfunction Malfunction of outdoor unit fan motor...
  • Page 82 Troubleshooting ESIE13-02 1.6.3 System Malfunction Overview Remote Contents of Malfunction Details of Controller Malfunction Display (Reference Page) Gas shortage Abnormal power supply voltage Underfloor heating screed dry-out error Transmission error (between hydro-box and outdoor unit) or UF Malfunction of transmission (between hydro-box and outdoor...

  • Page 83: Overview Of The Outdoor Safety Devices

    ESIE13-02 Troubleshooting Overview of the Outdoor Safety Devices High pressure switch Fuse Open Close ERHQ011~016BA 4.0 MPa +0/-0.15 3.0 +/-0.15 6.3A/250V ERLQ-CA 4.17 MPa +0/-0.15 3.2 +/-0.15 6.3A/250V Part 4 – Troubleshooting...

  • Page 84: Overview Of The Hydro-Box Safety Devices

    Troubleshooting ESIE13-02 Overview of the Hydro-box Safety Devices Hydro-box Protector Cut-out condition Reference EVLQXXCAV3 Q1L (Clixon) 85 +0/-6°C 4P312728 F1T (Thermal fuse) 134°C +3/-2°C AD120151 B1L004 Min 5l/min in hp operation. If AD120120 3V BUH: min 12l/min B1L008~016 Min 11l/min in hp operation.

  • Page 85: Error Codes: Gas Condensing Boiler

    ESIE13-02 Error Codes: Gas Condensing Boiler Error Codes: Gas Condensing Boiler General Guidelines Before starting the troubleshooting procedure, carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring. Warning When carrying out an inspection on the switch box of the unit, always make sure that the unit is ...

  • Page 86: Solving Problems Based On Symptoms

    Error Codes: Gas Condensing Boiler ESIE13-02 Solving Problems Based on Symptoms Not available at this moment. Part 4 – Troubleshooting...

  • Page 87: Solving Problems Based On Error Codes

    ESIE13-02 Error Codes: Gas Condensing Boiler Solving Problems Based on Error Codes When a problem happens, an error code appears on the user interface. It is important to understand the problem and to take countermeasure before resetting the error code. This should be done by a licensed installer or by your local dealer.
  • Page 88 Error Codes: Gas Condensing Boiler ESIE13-02 Error Cause Possible solution code Poor flame signal. Condensate drain blocked.  Check adjustment of gas valve.  Flame detection fault. Replace ignition cable and spark plug cap.  Replace ignition unit.  Replace boiler controller.

  • Page 89: Burner Does Not Ignite

    ESIE13-02 Error Codes: Gas Condensing Boiler Symptoms 2.4.1 Burner does not ignite Possible causes: Solution: Gas tap is closed. Open gas tap. Air in the gas pipe. Remove air from gas pipe. Gas supply pressure too low. Contact the gas company.
  • Page 90 Error Codes: Gas Condensing Boiler ESIE13-02 2.4.2 Burner ignites noisily Possible causes: Solution: Gas supply pressure too high. The house pressure switch may be faulty. Contact the gas company. Incorrect ignition gap. Replace the ignition pin. Check the ignition pin gap.
  • Page 91 ESIE13-02 Error Codes: Gas Condensing Boiler 2.4.4 No heating (CH) Possible causes: Solution: Check the wiring. Replace the thermo- Room thermostat / weather-dependent stat. Replace the weather-dependant adjustment not closed or faulty. adjustment. Check the wiring against the diagram. No current (24 V).
  • Page 92 Error Codes: Gas Condensing Boiler ESIE13-02 2.4.6 Symptom: The power is reduced Possible causes Corrective action At high rpm, the power has fallen by more than Check the appliance and flue system for  fouling. Clean the appliance and flue system.
  • Page 93 ESIE13-02 Error Codes: Gas Condensing Boiler 2.4.9 Symptom: Hot water does NOT reach the temperature Possible causes Corrective action Domestic hot water flow is too high. Adjust the inlet assembly. Temperature setting for water circuit is too low. Set the hot water circuit on the heat pump user interface, depending on the desired tempera- ture.

  • Page 94: Error Codes: Hydro-Box

    Error Codes: Hydro-box ESIE13-02 Error Codes: Hydro-box “A1” Malfunctioning Hydro-box PCB User interface display Error generation The error is generated when the data from the EEPROM is not received correctly. EEPROM (Electrically Erasable Programmable Read Only Memory): A memory chip that holds its content without power.

  • Page 95: 89" Water Heat Exchanger Frozen

    ESIE13-02 Error Codes: Hydro-box “89” Water Heat Exchanger Frozen User interface display Method of The freeze-up protection control (operation halt) is activated during cooling operation according to the malfunction temperature detected by the hydro-box heat exchanger thermistor. detection Malfunction Freeze-up protection: decision conditions When the hydro-box heat exchanger temperature is below 0°C during cooling operation.

  • Page 96: Cj, C4, 81, 80, Hc, H1" Thermistor Or Related Abnormality (Hydro-Box)

    Error Codes: Hydro-box ESIE13-02 “CJ, C4, 81, 80, HC, H1” Thermistor or Related Abnormality (Hydro-box) CJ, C4, 81, 80, HC, H1 User interface display Method of The temperatures detected by the thermistors are used to determine thermistor errors. malfunction detection Malfunction When the thermistor input is more than 4.96 V or less than 0.04 V during compressor operation*.

  • Page 97: Hydro-Box: Flow Error

    ESIE13-02 Error Codes: Hydro-box “7H” Hydro-box: Flow Error User interface display Method of The malfunction is detected by the flow sensor. malfunction detection Malfunction The error is generated in case the water flow is too low or no water flow at all for 15 seconds.
  • Page 98 Error Codes: Hydro-box ESIE13-02 Troubleshooting Check the installation conditions Open shut-OFF valves Open the shut-OFF valve Make sure that the Hydro-box pump runs pump signal is displayed on the interface [2] Water pressure is sufficient Charge additional water to the system...
  • Page 99 ESIE13-02 Error Codes: Hydro-box Malfunction of the Check the thermal protector (Q1L) Flow error occured during backup heater of the backup heater defrost operation Check the backup heater fuse F1B Is there 5V when the pump is running Replace hydrobox PCB between pin 3 &...

  • Page 100: C0" Hydro-Box: Flow Sensor Failure

    Error Codes: Hydro-box ESIE13-02 “C0” Hydro-box: Flow Sensor Failure Remote controller display Method of The protection device circuit checks the flow input signal during pump stop operation. malfunction detection Malfunction The error is generated in case flow input signal during pump stop operation occurs.

  • Page 101: Ec" Hydro-Box: Domestic Hot Water Tank Temperature Too High (> 89°C)

    ESIE13-02 Error Codes: Hydro-box “EC” Hydro-box: Domestic Hot Water Tank Temperature too High (> 89°C) Remote controller display Method of The malfunction is detected by domestic hot water tank thermistor (R5T). malfunction detection Malfunction The error is generated in case the domestic hot water temperature rise above 89°C.

  • Page 102: Warning "Ah" Tank Disinfection Function Not Completed Correctly

    Error Codes: Hydro-box ESIE13-02 Warning “AH” Tank Disinfection Function Not Completed Correctly Remote controller (warning) display Method of The malfunction is detected by thermistor and timer-check. malfunction detection Malfunction The error is generated when disinfection function is not completed correctly. Either tank temperature decision conditions for disinfection [A.4.4.4.] is not reached or temperature is not kept for required time [A.4.4.5.].

  • Page 103: Error Codes: Outdoor Units

    ESIE13-02 Error Codes: Outdoor Units Error Codes: Outdoor Units “E1” Outdoor Unit PCB Abnormality Remote controller display Method of Microcomputer checks whether E PROM is normal. malfunction detection Malfunction PROM: decision conditions When E PROM malfunctions when turning the power supply on...

  • Page 104: E3" Abnormal High Pressure (Detected By The Hps)

    Error Codes: Outdoor Units ESIE13-02 “E3” Abnormal High Pressure (Detected by the HPS) Remote controller display Method of The protection device circuit checks continuity in the high pressure switch. malfunction detection Malfunction When the high pressure switch is actuated decision conditions...
  • Page 105 ESIE13-02 Error Codes: Outdoor Units Troubleshooting Check the installation conditions. Is the stop valve Open the stop valve. open? Are control and protection HPS Connect correctly. connected to outdoor unit PC board? (Note) Turn off the power supply. Wait for 10 minutes after compressor stops operating, then check the following.

  • Page 106: E4" Actuation Of Low Pressure Sensor

    Error Codes: Outdoor Units ESIE13-02 “E4” Actuation of Low Pressure Sensor Remote controller display Method of [In cooling] malfunction Detect malfunctions by the pressure sensor (S1NPH).  detection [In heating] Detect malfunctions by the heat exchanger distribution pipe thermistor (R4T).
  • Page 107 ESIE13-02 Error Codes: Outdoor Units Troubleshooting Is the stop valve open? Open the stop valve. Is it in cooling operation? the heat (In cooling operation) exchanger distribution pipe thermistor (connector : Connect the connector properly. X12A) properly connected to the outdoor PC...
  • Page 108 Error Codes: Outdoor Units ESIE13-02 Graphs Outdoor unit PC board A1P X17A Black Microcomputer White A/D input *2 Measure voltage here. (V2809) -0.5 -0.5 Output voltage V PL=0.57V-0.28 PL: detected pressure (Mpa) V: output voltage (V) Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.

  • Page 109: E5" Compressor Motor Lock

    ESIE13-02 Error Codes: Outdoor Units “E5” Compressor Motor Lock Remote controller display Method of Inverter PC board takes the position signal from UVW line connected between the inverter and malfunction compressor, and detects the position signal pattern. detection Malfunction The position signal with 3 times cycle as imposed frequency is detected when compressor motor decision conditions operates normally, but 2 times cycle when compressor motor locks.
  • Page 110 Error Codes: Outdoor Units ESIE13-02 Troubleshooting Check the installation conditions. Is the stop valve Open the stop valve. open? Is the UVW wiring Connect correctly. normal? high pressure higher than 2.6 MPa at Remedy the cause. starting? Check and see whether Replace the compressor.

  • Page 111: E7" Malfunction Of Outdoor Unit Fan Motor

    ESIE13-02 Error Codes: Outdoor Units “E7” Malfunction of Outdoor Unit Fan Motor Remote controller display Method of Abnormality of fan motor system is detected according to the fan speed detected by hall IC when the malfunction fan motor runs. detection...
  • Page 112 Error Codes: Outdoor Units ESIE13-02 Troubleshooting Is the supply voltage within the range 180 Ask repair so that the to 220 VAC ? supply voltage will be within the normal range. Turn OFF the power again (and wait for 10 minutes).
  • Page 113 ESIE13-02 Error Codes: Outdoor Units Is the Replace the fan motor. fan motor normal? Is the fuse conductive? Replace the fuse. (*1) Properly plug the fan motor connector and then turn ON the power again. Does "E7" appear again? * Replace the outdoor PC...

  • Page 114: E9" Malfunction Of Electronic Expansion Valve

    Error Codes: Outdoor Units ESIE13-02 “E9” Malfunction of Electronic Expansion Valve Remote controller display Method of Method is determined according to the suction pipe superheat degree and electronic expansion valve malfunction opening degree calculated by values of low pressure sensor and suction pipe temperature thermistor.
  • Page 115 ESIE13-02 Error Codes: Outdoor Units Troubleshooting Turn OFF the power supply once and then turn it ON again. Does the malfunction code "E9" recur? Is the electronic expansion valve connector properly connected Connect properly. to the outdoor PC board? (*1)
  • Page 116 Error Codes: Outdoor Units ESIE13-02 Actually, it is in wet operation. Refer to Check 13,14,15 to eliminate the causes of wet operation. Restart operation. Does the malfunction code "E9" * Replace the outdoor PC board recur? (A1P) ERHQ***V3* / ERLQ***V3*...

  • Page 117: F3" Malfunctioning In Discharge Pipe Temperature

    ESIE13-02 Error Codes: Outdoor Units “F3” Malfunctioning in Discharge Pipe Temperature Remote controller display Method of Abnormality is detected according to the temperature detected by the discharge pipe temperature malfunction sensor. detection Malfunction When the discharge pipe temperature rises to an abnormally high level ...
  • Page 118 Error Codes: Outdoor Units ESIE13-02 Troubleshooting Is the discharge pipe Abnormality in refrigerant system such as temperature high? gas shortage, faulty compressor, etc. (115°C) Conduct inspection Is the discharge pipe thermistor correctly connected Connect correctly, and operate the unit to PCB (A1P)? again.

  • Page 119: H3" Malfunctioning Hps System

    ESIE13-02 Error Codes: Outdoor Units “H3” Malfunctioning HPS System Remote controller display Method of The protection device circuit checks continuity in the high pressure switch. malfunction detection Malfunction When there is no continuity in the high pressure switch during compressor stops operating.
  • Page 120 Error Codes: Outdoor Units ESIE13-02 Troubleshooting protection HPS connector (*1) Connect correctly. correctly connected to outdoor unit PC board? Wait for 10 minutes after the unit stops operating, then check the following. there continuity in each protection HPS? Is there continuity in lead Replace the lead wire.

  • Page 121: H9, J3, J5, J6, J7, J8" Thermistor Or Related Abnormality (Outdoor Unit)

    ESIE13-02 Error Codes: Outdoor Units “H9, J3, J5, J6, J7, J8” Thermistor or Related Abnormality (Outdoor Unit) H9, J3, J5, J6, J7, J8 Remote controller display Method of Abnormality is detected according to the temperature detected by each individual thermistor.

  • Page 122: J1" Malfunction Of Pressure Sensor

    Error Codes: Outdoor Units ESIE13-02 “J1” Malfunction of Pressure Sensor 4.10 Remote controller display Method of The malfunction is detected by the pressure measured with pressure sensor (S1NPH) malfunction detection Malfunction When the defect pressure becomes following: decision conditions Detected pressure ≤ -0.05MPa continues 185 s.
  • Page 123 ESIE13-02 Error Codes: Outdoor Units Graphs Outdoor unit PC board A1P X17A Black Microcomputer White A/D input *2 Measure voltage here. (V2809) -0.5 -0.5 Output voltage V PL=0.57V-0.28 PL: detected pressure (Mpa) V: output voltage (V) Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.

  • Page 124: L1" Faulty Outdoor Pc Board

    Error Codes: Outdoor Units ESIE13-02 “L1” Faulty Outdoor PC Board 4.11 Remote controller display Method of Detect malfunctions by current value during waveform output before compressor startup.  malfunction Detect malfunctions by current sensor value during synchronized operation at the time of startup.
  • Page 125 ESIE13-02 Error Codes: Outdoor Units Troubleshooting Is the power supply voltage Request an improvement to between 180 and 220 make the power supply voltage VAC? fall within the standard range. Turn OFF the power supply once. Is the lead wire for compressor connected to Connect tightly and correctly.

  • Page 126: L4" Radiation Fin Temperature Increased

    Error Codes: Outdoor Units ESIE13-02 “L4” Radiation Fin Temperature Increased 4.12 Remote controller display Method of Fin temperature is detected by the thermistor of the radiation fin. malfunction detection Malfunction When the temperature of the inverter radiation fin increases abnormally due to faulty heat dissipation.
  • Page 127 ESIE13-02 Error Codes: Outdoor Units Troubleshooting Can it be considered that the fin Eliminate the cause. temperature was high? (*1) Is the connector of the fin thermistor correctly connected to Connect correctly. the outdoor PC board? (*1) Check the resistance value of the thermistor according to the Troubleshooting "P4".

  • Page 128: L5" Dc Output Overcurrent (Instantaneous)

    Error Codes: Outdoor Units ESIE13-02 “L5” DC Output Overcurrent (Instantaneous) 4.13 Remote controller display Method of Malfunction is detected by converting the current flowing to power transistor into voltage with CT1 (DC malfunction current sensor). detection Malfunction When overcurrent has run to power transistor.
  • Page 129 ESIE13-02 Error Codes: Outdoor Units Troubleshooting Check the installation conditions. Open the stop valve. Is the stop valve open? Is the compressor coil Replace the compressor. disconnected or is the insulation defective? Turn the main power supply off, and then disconnect the connection between the compressor and inverter.

  • Page 130: L8" Dc Output Overcurrent (Instantaneous)

    Error Codes: Outdoor Units ESIE13-02 “L8” DC Output Overcurrent (Instantaneous) 4.14 Remote controller display Method of Malfunction is detected by converting the current flowing to power transistor into voltage with CT1  malfunction (DC current sensor). detection Inverter PC board detects the disorder of position signal.
  • Page 131 ESIE13-02 Error Codes: Outdoor Units Troubleshooting Is the secondary current of the inverter higher than * A (see below) Compressor overload for each Inspection of the compressor and phase? refrigerant system is required. Turn the main power supply off, and then disconnect the connection between the compressor and inverter.

  • Page 132: L9" Stall Prevention (Time Lag)

    Error Codes: Outdoor Units ESIE13-02 “L9” Stall Prevention (Time Lag) 4.15 Remote controller display Method of Malfunction is detected by converting the current flowing to power transistor into voltage with CT1  malfunction (DC current sensor). detection Inverter PC board detects the disorder of position signal.
  • Page 133 ESIE13-02 Error Codes: Outdoor Units Troubleshooting Check the installation conditions. Is the stop valve open? Open the stop valve. Is the difference between high and low pressure Insufficient pressure equalization before startup not more Check refrigerant system. than 0.2MPa? Turn the main power supply...

  • Page 134: Lc" Malfunction Of Transmission System (Between Control Pcb And Inverter Pcb)

    Error Codes: Outdoor Units ESIE13-02 “LC” Malfunction of Transmission System (Between Control PCB and Inverter 4.16 PCB) Remote controller display Method of Checks and sees whether transmission between control and inverter PC board is carried out normally. malfunction detection Malfunction When the transmission is not carried out in a specified period of time or longer.
  • Page 135 ESIE13-02 Error Codes: Outdoor Units Troubleshooting Is the fan motor connector Connect the connector, and turn connected? on again. connectors connecting the Connect the transmission wiring, control and inverter PC and turn on again. board connected securely? Is the transmission...

  • Page 136: P1" Open Phase Or Power Supply Voltage Imbalance

    Error Codes: Outdoor Units ESIE13-02 “P1” Open Phase or Power Supply Voltage Imbalance 4.17 Remote controller display Method of Malfunction is detected according to the voltage waveform of main circuit capacitor built in inverter. malfunction detection Malfunction When the aforementioned voltage waveform becomes identical with the waveform of the power supply decision conditions open phase.

  • Page 137: P4" Malfunction Of Radiator Fin Temperature Thermistor

    ESIE13-02 Error Codes: Outdoor Units “P4” Malfunction of Radiator Fin Temperature Thermistor 4.18 Remote controller display Method of Detection by open or short circuit of the radiator fin temperature thermistor during the compressor malfunction stops operating. detection Malfunction When open or short circuit of the radiator fin temperature thermistor is detected during the compressor...

  • Page 138: Pj" Malfunction Of Radiator Fin Temperature Thermistor

    Error Codes: Outdoor Units ESIE13-02 “PJ” Malfunction of Radiator Fin Temperature Thermistor 4.19 Remote controller display Method of Check whether set value written in E PROM (at factory) or set value of capacity setting adaptor (for malfunction replacement) is the same as outdoor unit capacity.

  • Page 139: Error Codes: System Malfunctions

    ESIE13-02 Error Codes: System Malfunctions Error Codes: System Malfunctions “U0” Gas Shortage (Malfunction) Remote controller display Method of (In cooling operation) malfunction Detection based on difference in temperature between temperature preset by remote controller and detection indoor suction air temperature, motorized valve opening degree, compressor frequency and low pressure.
  • Page 140 Error Codes: System Malfunctions ESIE13-02 Troubleshooting Check for refrigerant shortage. (*1) Is the refrigerant level Collect refrigerant and recharge a proper amount proper? of refrigerant after vacuum drying. Check the inter-unit wiring and piping between the indoor and outdoor units.

  • Page 141: U2" Abnormal Power Supply Voltage

    ESIE13-02 Error Codes: System Malfunctions “U2” Abnormal Power Supply Voltage Remote controller display Method of Malfunction is detected according to the voltage of main circuit capacitor built in the inverter and power malfunction supply voltage. detection Malfunction When the voltage of main circuit capacitor built in the inverter and power supply voltage drop:...
  • Page 142 Error Codes: System Malfunctions ESIE13-02 Troubleshooting Check LED on outdoor unit PC board. (Is the Other factors voltage insufficient?) the power supply voltage between 220~240 Field factors VAC ±10%? Is the wiring correct? When the compressor is running, measure the voltage between + and - of electrolytic capacitor (C+, C-).

  • Page 143: U3" Underfloor Heating Screed Dry-Out Failure

    ESIE13-02 Error Codes: System Malfunctions “U3” Underfloor Heating Screed Dry-out Failure Remote controller display Method of An interruption during the underfloor heating screed dry-out program is detected. malfunction detection Malfunction Screed dry-out program was interrupted incorrectly (ex. by accident by end user).

  • Page 144: U4" Malfunction Of Transmission Between Hydro-Box And Outdoor Unit

    Error Codes: System Malfunctions ESIE13-02 “U4” Malfunction of Transmission between Hydro-box and Outdoor Unit Remote controller display Error generation The error is generated when the microprocessor detects that the transmission between the indoor and the outdoor unit is not normal over a certain amount of time.
  • Page 145 ESIE13-02 Error Codes: System Malfunctions Check the resistance value of the outdoor fan motor. Is the resistance value of the Replace the outdoor fan outdoor fan motor motor. normal Does the fuse have continuity? Replace the fuse. Use only specified fuses.

  • Page 146: Shortage

    Error Codes: System Malfunctions ESIE13-02 “UF” Malfunction of Transmission between Hydro-box and Outdoor Unit or Gas Shortage Remote controller display Method of Check the transmission between the indoor and outdoor units with a microcomputer when the power malfunction turned ON.
  • Page 147 ESIE13-02 Error Codes: System Malfunctions Troubleshooting Does "UF" appear when the power is turned ON? The phase of inter-unit wiring between the indoor and outdoor units is incorrect. Correctly connect inter-unit Is the wiring between the indoor connection of and outdoor units.

  • Page 148: U5" Malfunction Of Transmission Between Hydro-Box And Remote Controller

    Error Codes: System Malfunctions ESIE13-02 “U5” Malfunction of Transmission between Hydro-box and Remote Controller Remote controller display Error generation The error is generated when the microprocessor detects that the transmission between the hydro-box and the remote controller is not normal over a certain amount of time.

  • Page 149: Ua" Indoor-Outdoor Combination Problem

    ESIE13-02 Error Codes: System Malfunctions “UA” Indoor-Outdoor Combination Problem Remote controller display Error generation The error is generated when there is a combination mismatch between indoor/outdoor. Supposed causes Incorrect unit model.  Option [D-04] not confirmed.  Functionality of X14A for *AB models.

  • Page 150: Additional Checks For Troubleshooting

    Additional Checks for Troubleshooting ESIE13-02 Additional Checks for Troubleshooting Check No.1 - Outdoor Unit: Checking the Installation Condition Check No.01 1 To check the installation condition, proceed as follows: Check the spaces for all air passage around the suction and discharge areas.

  • Page 151: Check No.2 - Outdoor Unit: Checking The Expansion Valve

    ESIE13-02 Additional Checks for Troubleshooting Check No.2 - Outdoor Unit: Checking the Expansion Valve Checking To check the electronic expansion valve, proceed as follows: Step Action Check if the expansion valve connector is correctly inserted in the X12A of A1P.

  • Page 152: Check No.3 - Checking The Thermistors

    Additional Checks for Troubleshooting ESIE13-02 Check No.3 - Checking the Thermistors Thermistors If the cause of the problem is related to the thermistors, then the thermistors should be checked prior to changing the PCB. For more information about these thermistors, see: "External connection diagram"...

  • Page 153: Check No.4 - Resistance Conversion Table (Ambient, Coil, Fin)

    ESIE13-02 Additional Checks for Troubleshooting Check No.4 - Resistance Conversion Table (Ambient, Coil, Fin) The table below is the thermistor (Hydro-box: Suction air, Coil / Outdoor: Ambient, Coil, Pipe Temperature – resistance without discharge, Fin) temperature – resistance conversion table Temp.
  • Page 154 Additional Checks for Troubleshooting ESIE13-02 Be careful when ordering spare part sensor for tank thermistor. Thermistor Remove the connectors of the thermistors on the PCB, and measure the resistance of each thermistor resistance check using tester. The tank thermistor is for EKHWS-B and EKHWE domestic hot water tanks.

  • Page 155: Check No.5 - Resistance Conversion Table (Discharge Pipe Sensor)

    ESIE13-02 Additional Checks for Troubleshooting Check No.5 - Resistance Conversion Table (Discharge Pipe Sensor) The table below is the discharge pipe thermistor temperature – resistance conversion table Temperature – resistance Temp. Resist. Temp. Resist. Temp. Resist. (°C) (kΩ) (°C) (kΩ) (°C)

  • Page 156: Check No.6 - Evaluation Of Abnormal High Pressure

    Additional Checks for Troubleshooting ESIE13-02 Check No.6 - Evaluation of Abnormal High Pressure Abnormally high pressure level is mostly caused by the condenser side. The following contents are provided by service engineer based on their field checks. Further, the number is listed in the order of degree of influence.

  • Page 157: Check No.7 - Evaluation Of Abnormal Low Pressure

    ESIE13-02 Additional Checks for Troubleshooting Check No.7 - Evaluation of Abnormal Low Pressure Abnormally low pressure level is mostly caused by the evaporator side. The following contents are provided based on field checking of service engineer. Further, the number is listed in the order of degree of influence.

  • Page 158: Check No.8 - Clogged Points

    Additional Checks for Troubleshooting ESIE13-02 Check No.8 - Clogged Points Temperature differences must occur before or after the clogged points! COMP Indoor Unit Outdoor Unit Check points Check factor Causes Remedies Around Temperature Dust Replace the  expansion difference expansion valve.

  • Page 159: Check No.10 - Outdoor Unit: Fan Speed Pulse

    ESIE13-02 Additional Checks for Troubleshooting Check No.10 - Outdoor Unit: Fan Speed Pulse 1 Disconnect the connector X106A with the power supply OFF and Operation OFF. 2 Is the voltage between pins 4 and 3 of X106A about 15 VDC after turning the power supply on? 3 Is the voltage between pins 4 and 1 of X106A about 5 VDC? 4 Is the voltage between pins 4 and 7 of X106A about 325 VDC ±...

  • Page 160: Check No.11 - Outdoor Unit: Check For Power Transistor

    Additional Checks for Troubleshooting ESIE13-02 6.10 Check No.11 - Outdoor Unit: Check for Power Transistor Judgment according to the continuity check by using an analog tester: 1 Do not touch the charged area (high voltage) for 10 minutes after turning the power supply off.

  • Page 161: Check No.13 - Check For Inadequate Refrigerant

    ESIE13-02 Additional Checks for Troubleshooting 6.11 Check No.13 - Check for Inadequate Refrigerant As criteria for judging whether refrigerant is inadequate or not, refer to the following operating conditions. <Diagnosis of inadequate refrigerant> In cooling operation 1 As suction superheat degree increases due to gas shortage, the electronic expansion valve tends to open (opens fully) in order to avoid overheat operation.

  • Page 162: Check No.14 - Check For Excessive Refrigerant Charging

    Additional Checks for Troubleshooting ESIE13-02 6.12 Check No.14 - Check for Excessive Refrigerant Charging As criteria for judging whether refrigerant is excessively charged or not, refer to the following operating conditions. <Diagnosis of excessive refrigerant charging> In cooling operation 1 Because high pressure rises due to excessive charging, overload control is carried out and capacity tends to run short.

  • Page 163: Check No.15 - Check For Factors Causing Wet Operation

    ESIE13-02 Additional Checks for Troubleshooting 6.13 Check No.15 - Check for Factors Causing Wet Operation Note Reference values for superheat degree to be used in the judgement of wet operation: 1 Suction pipe superheat degree: 4°C or more 2 Discharge pipe superheat degree: 5°C or less (The values above must be used only for reference purposes.

  • Page 164: Check No.16 - Troubleshooting Yonos Para Inverter Pump (Only For Eh/Vb004-008)

    Additional Checks for Troubleshooting ESIE13-02 6.14 Check No.16 - Troubleshooting Yonos Para Inverter Pump (Only for EH/VB004-008) Meaning Diagnostic Cause Remedy Lights Pump in operation Pump runs according its Normal operation green setting Blinks RKA model: Pump runs during 10 min...
  • Page 165 ESIE13-02 Part 5 Repair What is in this part? This part contains the following chapters: Chapter See page 1–Tips and Tricks Part 5 – Repair...
  • Page 166 Tips and Tricks ESIE13-02 Tips and Tricks Not available at this moment Part 5 – Repair...
  • Page 167 ESIE13-02 Part 6 Maintenance What is in this part? This part contains the following chapters: Chapter See page 1–Maintenance Schedule Part 6 – Maintenance...

  • Page 168: Maintenance Schedule

    Check for correct operation of the pressure relief valve by turning the red knob on the valve counter-clockwise: If you do not hear a clacking sound, contact your local Daikin dealer.  In case the water keeps running out of the unit, close both the water inlet and outlet shut-off ...

  • Page 169: Gas Boiler System Commissioning Checklist

    ESIE13-02 Maintenance Schedule GAS BOILER SYSTEM COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.

  • Page 170: Service Record

    Maintenance Schedule ESIE13-02 Service Record It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions.

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