[ IX Troubleshooting ]
- 144 -
HWE1018A GB
1. Error Code
Heatsink temperature sensor (THHS) fault (Detail code 01)
2. Error definition and error detection method
When a short or an open of THHS is detected just before or during the inverter operation.
3. Cause, check method and remedy
Refer to section -6- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 191)
1. Error Code
High-pressure sensor fault (63HS1)
2. Error definition and error detection method
If the high-pressure sensor detects a pressure of 0.098MPa [14psi] or below during operation, the outdoor unit stops, goes
into the 20-second restart delay mode, and restarts if the pressure reaches above 0.098MPa [14psi] at the end of the restart
delay mode.
If the high pressure sensor detects 0.098MPa [14psi] or less just before the restart, the outdoor unit makes an error stop, and
the error code "5201" will appear.
When the unit is in the 20-second restart delay mode, a preliminary error code appears on the LED.
A error is not detected for 3 minutes after the compressor start, during defrost operation, or 3 minutes after defrost operation.
3. Cause, check method and remedy
5110
Cause Check method and remedy
(1) INV board failure If the problem recurs when the unit is put into operation, replace the INV board.
5201
Cause Check method and remedy
(1) High pressure sensor failure Refer to the page on the troubleshooting of
the high pressure sensor.
(IX [4] -1- (page 181))
(2) Pressure drop due to refrigerant leak
(3) Torn wire coating
(4) A pin on the male connector is missing or contact failure
(5) Disconnected wire
(6) High pressure sensor input circuit failure on the control board
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