Mitsubishi Electric PURY-RP200 Service Handbook page 188

[ IX Troubleshooting ]
1. Error Code
5201
High-pressure sensor fault (63HS1/63HS2)
2. Error definition and error detection method
If the high pressure sensor or intermediate pressure sensor detects 0.098MPa [14psi] or less during the operation, the outdoor
unit stops once, turns to anti-restart mode for 3 minutes, and restarts after 3 minutes when the detected high pressure sensor
or intermediate pressure sensor is 0.098MPa [14psi] or more.
If the high pressure sensor or intermediate pressure sensor detects 0.098MPa [14psi] or less just before the restart, the out-
door 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, during defrost operation, or 3 minutes after defrost operation.
3. Cause, check method and remedy
(1) High pressure sensor failure
Intermediate pressure sensor failure
(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
HWE10140
Cause
- 179 -
Check method and remedy
Refer to the page on the troubleshooting of
the high pressure sensor.
(IX [4] -1- )(page 229)
GB