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Daikin Manuals
Boiler
EHYHBH05AAV3
Service manual
Daikin EHYHBH05AAV3 Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Error Codes: Outdoor Units 1
Table of Contents
Overview of General Problems 4
Equipment Does Not Operate
Indoor Pump Operates, but Compressor Does Not
Cooling/Heating Operation Starts but Stops Immediately
After Unit Shuts Down, It Cannot be Restarted for a While
Equipment Produces Loud Noise or Shakes
The Unit Is Turned on but the Compressor Is Not Starting
Pump Is Making Noise (Cavitation)
The Water Pressure Relief Valve Opens
The Water Pressure Relief Valve Leaks
The User Interface Does Not Display Certain Screens
Domestic Hot Water Capacity Shortage at Low Outdoor Tem
Space Heating Capacity Shortage at Low Outdoor Tempera
Room Temperature Set Point Isn’T Reached or Increases too
Error Codes: Outdoor Units
X93;E1” Outdoor Unit PCB Abnormality
X93;E3” Abnormal High Pressure (Detected by the HPS)
X93;E4” Actuation of Low Pressure Sensor
X93;E5” Compressor Motor Lock
X93;E7” Malfunction of Outdoor Unit Fan Motor
X93;E9” Malfunction of Electronic Expansion Valve
X93;F3” Malfunctioning in Discharge Pipe Temperature
X93;H3” Malfunctioning HPS System
X93;H9, J3, J5, J6, J7, J8” Thermistor or Related Abnormality (Outdoor Unit)
X93;J1” Malfunction of Pressure Sensor
X93;L1” Faulty Outdoor PC Board
X93;L4” Radiation Fin Temperature Increased
X93;L5” DC Output Overcurrent (Instantaneous)
X93;L8” DC Output Overcurrent (Instantaneous)
X93;L9” Stall Prevention (Time Lag)
Pcb)
X93;Lc” Malfunction of Transmission System
X93;P1” Open Phase or Power Supply Voltage Imbalance
X93;P4” Malfunction of Radiator Fin Temperature Thermistor
X93;Pj” Malfunction of Radiator Fin Temperature Thermistor
Error Codes: System Malfunctions
X93;U0” Gas Shortage (Malfunction)
X93;U2” Abnormal Power Supply Voltage
X93;U3” Underfloor Heating Screed Dry-Out Failure
X93;U4” Malfunction of Transmission between Hydro-Box and Outdoor Unit
Shortage
X93;Uf” Malfunction of Transmission between Hydro-Box and Outdoor Unit or Gas
X93;U5” Malfunction of Transmission between Hydro-Box and Remote Controller
X93;Ua” Indoor-Outdoor Combination Problem
Additional Checks for Troubleshooting
Check No.1 - Outdoor Unit: Checking the Installation Condition
Check No.2 - Outdoor Unit: Checking the Expansion Valve
Check No.3 - Checking the Thermistors
Check No.4 - Resistance Conversion Table (Ambient, Coil, Fin)
Check No.5 - Resistance Conversion Table (Discharge Pipe Sensor)
Check No.6 - Evaluation of Abnormal High Pressure
Check No.7 - Evaluation of Abnormal Low Pressure
Check No.8 - Clogged Points
Check No.10 - Outdoor Unit: Fan Speed Pulse
Check No.11 - Outdoor Unit: Check for Power Transistor
Check No.13 - Check for Inadequate Refrigerant
Check No.14 - Check for Excessive Refrigerant Charging
Check No.15 - Check for Factors Causing Wet Operation
Check No.16 - Troubleshooting Yonos para Inverter Pump (Only for EH/VB004-008)
Repair
Tips and Tricks
Maintenance
Maintenance
Maintenance Schedule
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Quick Links
1
Error Codes: Outdoor Units 1
2
Error Codes: System Malfunctions
Download this manual
Service Manual
Hybrid
- Gas boiler
- EHYKOMB33AA / EHYKOMB33AA
- Hydro-box
- EHYHBH05AAV3 / RHYHBH05AAV3 / CHYHBH05AAV3
- EHYHBH08AAV3 / RHYHBH08AAV3 / CHYHBH08AAV3
- EHYHBX08AAV3 / RHYHBX08AAV3
- Outdoor unit
- EVLQ05CAV3 / RVLQ05CAV3
- EVLQ08CAV3 / RVLQ08CAV3
ESIE13-02A
Table of
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Chapters
Error Codes: Outdoor Units 1
4
Overview of General Problems 4
55
Table of Contents
Troubleshooting
Additional Checks for Troubleshooting
150
Check No.16 - Troubleshooting Yonos Para Inverter Pump (Only for EH/VB004-008)
164
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This manual is also suitable for:
Ehykomb33aa
Rhyhbh05aav3
Chyhbh05aav3
Ehyhbh08aav3
Rhyhbh08aav3
Chyhbh08aav3
...
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Ehyhbx08aav3
Rhyhbx08aav3
Evlq05cav3
Rvlq05cav3
Evlq08cav3
Rvlq08cav3
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