Error Codes [5201, 5203]; Error Code [5301] Detail Code 115 - Mitsubishi Electric PURY-P200YLM-A(1) Service Handbook

[7-7 Error Code Definitions and Solutions: Codes [5000 - 5999] ]
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Error Codes [5201, 5203]

1. Error code definition
5201
High-pressure sensor fault (BC controller PS1)
5203
Intermediate pressure sensor fault (BC controller PS3)
2. Error definition and error detection method
When a pressure sensor reading of 4.06 MPa [589 psi] or above OR 0.98Mpa[142psi] or below is detected, error codes "5201"
OR "5203" 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) Torn wire coating
(3) A pin on the male connector is missing or contact failure
(4) Disconnected wire
(5) High pressure sensor input circuit failure on the control board
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Error Code [5301] Detail Code 115

1. Error code definition
ACCT sensor fault (Detail code 115)
2. Error definition and error detection method
When the formula "output current < 1.5 Arms" remains satisfied for 10 seconds while the inverter is in operation.
3. Cause, check method and remedy
Cause
(1) Inverter open output phase
(2) Compressor failure
(3) INV board failure
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems](page 337)
HWE1314A
Cause
Check the output wiring connections.
Refer to the following page(s).
[8-10-3 Checking the Compressor for Ground Fault and Coil Resistance Prob-
lems](page 339)
Refer to the following page(s).
[8-10-2 Checking the Inverter Board Error Detection Circuit](page 339)
[8-10-4 Checking the Inverter for Damage at No-Load](page 339)
[8-10-5 Checking the Inverter for Damage during Compressor Operation](page
340)
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Check method and remedy
Refer to the following page(s). [8-5-1 Com-
paring the High-Pressure Sensor Measure-
ment and Gauge Pressure](page 313)
Check for damaged wire coating
Check whether a connector pin is missing
Check for disconnected or broken wire
Check the temperature detected by the sen-
sor from the LED monitor. If the temperature
is significantly different from the actual tem-
perature, replace the control board.
Check method and remedy
GB