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Daikin Manuals
Air Conditioner
EDLA04E V Series
Service manual
Daikin EDLA04E V Series Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Safety Precautions
Meaning of Warnings and Symbols
Dangers
Warnings
Cautions
Notices
General Operation
Troubleshooting
To Display the Help Text in Case of a Malfunction
To Check the Malfunction History
Error Based Troubleshooting
01 - Water Flow Problem
04 - Water Flow Problem During Domestic Hot Water Production
05 - Water Flow Problem During Heating/Sampling
06 - Water Flow During Cooling/Defrost
07 - Water Flow Problem. Pump De-Blocking Active
08 - Pump Abnormality During Normal Operation (Pump Feedback)
Inlet Water Thermistor Abnormality
Outlet Water Thermistor Abnormality
Mixed Water Thermistor Abnormality
Outlet Water Temperature Thermistor Abnormality
Heat Exchanger Frozen
Heat Exchanger Frozen
Heat Exchanger Frozen
Heat Exchanger Freeze-Up Protection Activated During Cooling (Error)
Heat Exchanger Freeze-Up Protection Activated During Cooling (Warning)
00 - Abnormal Increase Outlet Water Temperature (Domestic Hot Water)
00 - Abnormal Increase Outlet Water Temperature
01 - Overheating Mixed Water Circuit
02 - Overheating Mixed Water Circuit (Thermostat)
03 - Overheating Water Circuit (Thermostat)
A1-00 - Zero Cross Detection Problem
A5-00 - Outdoor Unit: High Pressure Peak Cut / Freeze Protection Problem
Backup Heater Overheated
Booster Heater Overheated
Tank Disinfection Function Not Completed Correctly
Too Long Domestic Hot Water Heat-Up Time Required
C0-00 - Flow Sensor Malfunction
C0-01 - Flow Switch Malfunction
C0-02 - Flow Switch Malfunction
C4-00 - Heat Exchanger Temperature Sensor Problem
C5-00 - Heat Exchanger Thermistor Abnormality
Room Temperature Sensor Problem
E1-00 - Outdoor Unit: PCB Defect
E2-00 - Leakage Current Detection Error
E3-00 - Outdoor Unit: Actuation of High Pressure Switch
E3-24 - High Pressure Switch Abnormality
E4-00 - Abnormal Suction Pressure
E5-00 - Outdoor Unit: Overheat of Inverter Compressor Motor
E6-00 - Outdoor Unit: Compressor Startup Defect
E7-00 - Outdoor Unit: Malfunction of Outdoor Unit Fan Motor
E8-00 - Outdoor Unit: Power Input Overvoltage
E9-00 - Malfunction of Electronic Expansion Valve
Outdoor Unit: Cool/Heat Switchover Problem
Abnormal Increase Tank Temperature
Tank Preheating
F3-00 - Outdoor Unit: Malfunction of Discharge Pipe Temperature
F6-00 - Outdoor Unit: Abnormal High Pressure in Cooling
Outdoor Unit: Abnormal High Pressure, Actuation of High Pressure Switch
H0-00 - Outdoor Unit: Voltage/Current Sensor Problem
H1-00 - External Temperature Sensor Problem
H3-00 - Outdoor Unit: Malfunction of High Pressure Switch
H5-00 - Malfunction of Compressor Overload Protection
H6-00 - Outdoor Unit: Malfunction of Position Detection Sensor
H8-00 - Outdoor Unit: Malfunction of Compressor Input System
H9-00 - Outdoor Unit: Malfunction of Outdoor Air Thermistor
Tank Temperature Sensor Problem
Water Pressure Sensor Abnormality
J3-00 - Outdoor Unit: Malfunction of Discharge Pipe Thermistor
J6-00 - Outdoor Unit: Malfunction of Heat Exchanger Thermistor
J8-00 - Malfunction of Refrigerant Liquid Thermistor
Malfunction of High Pressure Sensor
Refrigerant Pressure Sensor Abnormality
L1-00 - Outdoor Unit: Main PCB Abnormality
L3-00 - Outdoor Unit: Electrical Box Temperature Rise Problem
L4-00 - Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise
L5-00 - Outdoor Unit: Inverter Instantaneous Overcurrent
L8-00 - Malfunction Triggered by a Thermal Protection in the Main PCB
L9-00 - Prevention of Compressor Lock
Malfunction in Communication System of Outdoor Unit
P1-00 - Open Phase Power Supply Imbalance
P3-00 - Abnormal Direct Current
P4-00 - Outdoor Unit: Malfunction of Radiating Fin Temperature Sensor
Capacity Setting Mismatch
U0-00 - Outdoor Unit: Shortage of Refrigerant
U1-00 - Malfunction by Reverse Phase/Open Phase
U2-00 - Outdoor Unit: Defect of Power Supply Voltage
U3-00 - under Floor Heating Screed Dry out Function Not Completed Correctly
U4-00 - Indoor/Outdoor Unit Communication Problem
U5-00 - User Interface Communication Problem
U7-00 - Outdoor Unit: Transmission Malfunction between Main Microcomputer - Inverter Microcomputer
U8-02 - Connection with Room Thermostat Lost
U8-03 - no Connection with Room Thermostat
U8-04 - Unknown USB Device
U8-05 - File Malfunction
U8-06 - Bizone Kit Canopen Communication Error
U8-07 - P1/P2 Communication Error
U8-09 - User Interface Software Version / Indoor Unit Compatibility Error
U8-11 - Connection with Wireless Gateway Lost
Indoor Unit, Outdoor Unit Mismatching Problem
Tank Type Problem
Reversed Piping or Bad Communication Wiring Detection
Symptom Based Troubleshooting
Symptom: Incorrect Energy Metering Read-Out
Water Pump Related
Tap Water Related
Symptom: User Interface Is Failure or Frozen Screen
Symptom: Leak
Symptom: Water Flow or Volume too Low
Compressor Related
Symptom: Abnormal Presence of Ice
Symptom: Domestic Hot Water Capacity Shortage
Symptom: General Capacity Shortage
Symptom: Space Heating (Cooling) Capacity Shortage
Symptom: Inaccurate Temperature Control
Symptom: Power Consumption too High
Symptom: System Does Not Start or Operate
Symptom: the Pump Is Blocked
Components
3-Way Valve
Checking Procedures
Repair Procedures
4-Way Valve
Checking Procedures
Repair Procedures
Backup Heater
Built-In Backup Heater
Backup Heater Kit
Backup Heater Thermal Protector
Built-In Backup Heater
Backup Heater Kit
Booster Heater
Checking Procedures
Repair Procedures
Booster Heater Thermal Protector
Checking Procedures
Repair Procedures
Compressor
Checking Procedures
Repair Procedures
Compressor Thermal Protector
Checking Procedures
Repair Procedures
Expansion Valve
Checking Procedures
Repair Procedures
Flow Switch
Checking Procedures
Repair Procedures
High Pressure Switch
Checking Procedures
Repair Procedures
Hydro PCB
Checking Procedures
Repair Procedures
LAN Adapter PCB
Checking Procedures
Repair Procedures
Main PCB
Checking Procedures
Repair Procedures
Outdoor Unit Fan Motor
Checking Procedures
Repair Procedures
Plate Work
To Remove the Discharge Grille
To Open the Outdoor Unit
To Remove the Top Plate
To Remove the Front Plate
To Rotate the Switch Box
To Remove the Compressor Sound Insulation
To Remove the Drip Proof Cover
To Remove the Switch Box
To Install the Switch Box
To Close the Outdoor Unit
Reactor
Checking Procedures
Repair Procedures
Refrigerant Pressure Sensor
Checking Procedures
Repair Procedures
Thermistors
Refrigerant Side Thermistors
Water Side Thermistors
Other Thermistors
User Interface
Checking Procedures
Repair Procedures
Water Flow Sensor
Checking Procedures
Repair Procedures
Water Pressure Sensor
Checking Procedures
Repair Procedures
Water Pump
Checking Procedures
Repair Procedures
Third Party Components
Electrical Circuit
Checking Procedures
Repair Procedures
Refrigerant Circuit
Checking Procedures
Repair Procedures
Water Circuit
Checking Procedures
Repair Procedures
Manufacturer Components
Checking Procedures
Repair Procedures
External Factors
Checking Procedures
Maintenance
To Clean the Outdoor Unit Heat Exchanger
To Clean the Integrated Filter of the Shut-Off Valve
To Check the Pipe Heaters
Technical Data
Detailed Information Setting Mode
Detailed Information Setting Mode: Outdoor Unit
Detailed Information Setting Mode: Remote Controller
Wiring Diagram
Wiring Diagram: Outdoor Unit
Piping Diagram
Piping Diagram: Outdoor Unit
Component Overview
Component Overview: Single Phase with Backup Heater
Component Overview: Single Phase Without Backup Heater
Component Overview: Backup Heater Kit
Field Information Report
Service Tools
Field Settings
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EBLA04E▲V▼
EBLA06E▲V▼
EBLA08E▲V▼
EDLA04E▲V▼
EDLA06E▲V▼
EDLA08E▲V▼
▲= A, B, C, ..., Z
▼= , , 1, 2, 3, ..., 9
draft – 31/05/2022 15:53
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Daikin Altherma 3 M
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Troubleshooting
Troubleshooting
18
Error based troubleshooting
19
Symptom based troubleshooting
80
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