Troubleshooting The Outdoor Unit; Error Codes - Daikin GYEQ20AN Service Manual

SiAUY361411EA

1. Troubleshooting the Outdoor Unit

1.1

Error Codes

Your Yanmar Gas Heat Pump system constantly monitors its components for any errors. In the
event that an error has occurred in a unit, the system automatically stops that unit.
When an error occurs, the remote controller connected to the indoor unit notifies you of the error
by displaying the corresponding error code while flashing the run lamp and inspection indicator.
The error codes appears also on the "hour meter" on the outdoor unit's control circuit board.
When normal, the "hour meter" displays operating hours.
Table 4.1/ Error code table
displayed
outdoor
Troubleshooting
Indoor Unit system
Code
Run Inspection
on indicator Unit No.
lamp
unit
— Blinking Blinking Blinking
— Blinking Blinking Blinking
— On Off Blinking
— Blinking Blinking Blinking
— Blinking Blinking Blinking
— On Off Blinking
— On Blinking Blinking
— Blinking Blinking Blinking
— On Off Blinking
— On Off Blinking
— Blinking Blinking Blinking
— Blinking Blinking Blinking
— Blinking Blinking Blinking
— Blinking Blinking Blinking
— Blinking Blinking Blinking
— Blinking Blinking Blinking
— Blinking Blinking Blinking
— On Off Blinking
— On Off Blinking
E0 Blinking Blinking Blinking
E1 Blinking Blinking Blinking
E2 Blinking Blinking Blinking
E3 Blinking Blinking Blinking
E4 Blinking Blinking Blinking
E6 Blinking Blinking Blinking
E7 Blinking Blinking Blinking
E9 Blinking Blinking Blinking
EA Blinking Blinking Blinking
EH Blinking Blinking Blinking
F0 Blinking Blinking Blinking
F2 Blinking Blinking Blinking
F3 Blinking Blinking Blinking
F4 Blinking Blinking Blinking
Troubleshooting the Outdoor Unit
Code
displayed
on
remote
controller
A0 Indoor Unit - External Protection Device Failure
Indoor Unit - P Board Assembly Failure / EEPROM
A1
Misconfigured
A1 Indoor Unit - P Board Assembly Failure
A3 Indoor Unit - Drain Level System Failure
A6 Indoor Unit - Fan Lock
A7 Indoor Unit - Louver Motor (MA) Failure
A7 Indoor Unit - Louver Motor Failure
A9 Indoor Unit - Electronic Expansion Valve Drive Failure
AF Indoor Unit - Abnormal Drain
AH Indoor Unit - Dust Collector Failure
AJ Indoor Unit - Capacity Setting Incorrect
Indoor Unit - Fan P Board / Adaptor P Board - Control
C1
P Board Transmission Failure
Indoor Unit - Liquid Pipe Thermistor Fault (contact
C4
failure, disconnected, shorted, faulty)
Indoor Unit - Gas Pipe Thermistor Fault (contact
C5
failure, disconnected, shorted, faulty)
Indoor Unit - Fan P Board - Control P Board
C6
Misconfigured
Indoor Unit - Inlet Air Thermistor Fault (contact failure,
C9
disconnected, shorted, faulty)
Indoor Unit - Blow-Out Air Thermistor Fault (contact
CA
failure, disconnected, shorted, faulty)
Indoor Unit / Person Detection / Floor Temperature
CE
Detection Sensor Failure
CJ Indoor Unit - Remote Control Sensor Failure
E0 Engine Fails To Start Up
E1 Engine Overspeed
E2 Engine Stall
E3 Oil Pressure Too Low
E4 Abnormal Cooling Water Temperature
E6 Abnormal Discharge Temperature
E7 Abnormal High-Side Pressure
E9 Abnormal Low-Side Pressure
EA Abnormal EEPROM
EH Software Version Mismatch / Circuit Board Mismatch
F0 Starter System Failure
F2 Outdoor Fan Failure
F3 Oil Pressure Switch Failure
Cooling Water Temperature Sensor Disconnected /
F4
Shorted
Error
110