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Test Run
Troubleshooting
• This function displays the disorder types at the self diagnostics and the occurrence of the
disorder for the product.
• The disorder display shows the code in the following table on the red/green LED of the wired
remote controller and outdoor unit control board.
• If two or more types of disorders occur simultaneously, it displays in the order of the error
number.
• After error occurs, the error code disappears when the disorder is repaired.
h Error code 01, 08, 17, 18 can be operated with emergency operation.
Error
Error Type
No.
01
Air temperature sensor error
02
Gas side temperature sensor error
No communication between wired
03
remote controller & indoor unit
Indoor unit & outdoor unit
05
communication error
06
Liquid side temperature sensor error
08
Water tank temperature sensor error
09
Indoor unit EEPROM error
Solar thermal temperature sensor
13
error
14
Flow switch error
15
Water pipe overheated
Water inlet & outlet temperature
16
sensor error
17
Water inlet temperature sensor error
Water outlet temperature sensor
18
error
54 Hydro Kit
Main Reasons
Air temperature sensor disconnection or short circuit
Gas side temperature sensor disconnection or short
circuit
The remote controller does not receive the signal from
indoor unit during specific time
No signal communication between indoor unit &
outdoor unit
Liquid side temperature sensor disconnection or short
circuit
Water tank temperature sensor disconnection or short
circuit
Communication between the micro-processor & the
EEPROM / Error due to EEPROM damage
Solar thermal temperature sensor disconnection or
short circuit
Abnormal working of flow switch
Water outlet temperature is above 85℃ (185°F)
Water inlet & outlet temperature sensor disconnection
or short circuit simultaneously
Water inlet temperature sensor disconnection or short
circuit
Water outlet temperature sensor disconnection or
short circuit
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