Mitsubishi Electronics r410a Air Conditioner User Manual


 
[ IX Troubleshooting ]
- 262 -
HWE09080 GB
1. Error Code
High-pressure sensor fault (63HS1)
2. Error definition and error detection method
If the high pressure sensor detects 0.098MPa [14psi] or less during the operation, the heat source unit stops once, turns to
anti-restart mode for 3 minutes, and restarts after 3 minutes when the detected high pressure sensor is 0.098MPa [14psi] or
more.
If the high pressure sensor detects 0.098MPa [14psi] or less just before the restart, the heat source unit makes an error stop,
and the error code "5201" will appear.
During 3-minute antirestart mode, preliminary errors will be displayed on the LED display.
A error is not detected for 3 minutes after the compressor start.
3. Cause, check method and remedy
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 306))
(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