Error Code [1301] - Mitsubishi Electric PURY-HP72 Service Handbook

[7-3 Error Code Definitions and Solutions: Codes [1000 - 1999] ]
7-3-2

Error Code [1301]

1. Error code definition
Low pressure fault
2. Error definition and error detection method
When starting the compressor from Stop Mode for the first time if low pressure reads 0.098MPa [14psi] immediately before
start-up, the operation immediately stops.
3. Cause, check method and remedy
Cause
(1) Inner pressure drop due to a leakage.
(2) Low pressure sensor failure
(3) Short-circuited pressure sensor cable due to
torn outer rubber
(4) A pin on the male connector is missing.
(5) Disconnected wire
(6) Failure of the low pressure input circuit on the
controller board
HWE13080
Check method and remedy
Refer to the following page(s). [8-5-3 Comparing the Low-
Pressure Sensor Measurement and Gauge Pressure](page
268)
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GB