Error Code [5201]; Error Code [5202] - Mitsubishi Electric PUHY-M200YNW-A1 Service Handbook

[7-7 Error Code Definitions and Solutions: Codes [5000 - 5999] ]
7-7-6

Error Code [5201]

1. Error code definition
5201
Refrigerant pressure sensor fault (Outdoor unit 63HS1/Hydro unit Prf)
2. Error definition and error detection method
When a pressure sensor reading of 4.06 MPa [589 psi] or above is detected, error code "5201" will appear.
The unit will continue its operation by using other sensors as a backup.
3. Cause, check method and remedy
(1) High 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
7-7-7 Error Code [5201]
1. Error code definition
5201
Water pressure sensor fault (indoor unit)
2. Error definition and error detection method
When a pressure sensor reading of 1.05 MPa [153 psi] or above OR -0.05 MPa [7.3 psi] or below is detected, error code
"5201" will appear.
3. Cause, check method and remedy
(1) The water inner pressure sensor is open- or short-circuited. (Re-
gardless of the indoor unit operation status)
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- chapter 7
Cause
Cause
Check method and remedy
Refer to the following page(s). [8-9-1 Pres-
sure Sensor]
Check method and remedy
1) Check that the water inner pressure sensor
is connected.
Reset the indoor unit error.
2) Check the water inner pressure sensor wir-
ing for breakage.
Reset the indoor unit error.
BS_07_E