Troubleshooting - Mitsubishi Electric PEA-RP200GA Service Manual

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9-1. TROUBLESHOOTING

Present and past error codes are logged and displayed on the wired remote controller or controller board of outdoor unit.

Actions to be taken for service and the inferior phenomenon reoccurrence at field are summarized in the table below. Check

the contents below before investigating details.

Unit conditions at service

The inferior phenomenon is

reoccurring.

The inferior phenomenon is

not reoccurring.

Error code

Actions to be taken for service (summary)

Judge what is wrong and take a corrective action

Displayed

according to "SELF-DIAGNOSIS ACTION TABLE" (9-2).

Identify the cause of the inferior phenomenon and take

Not displayed

a corrective action according to "TROUBLESHOOTING

BY INFERIOR PHENOMENA " (9-3).

1Consider the temporary defects such as the work of

protection devices in the refrigerant circuit including

compressor, poor connection of wiring, noise and etc.

Re-check the symptom, and check the installation

environment, refrigerant amount, weather when the

inferior phenomenon occurred, and wiring related.

Logged

2Reset error code logs and restart the unit after finishing

service.

3There is no abnormality in electrical components,

controller boards, and remote controller.

1Recheck the abnormal symptom.

2Identify the cause of the inferior phenomenon and take

a corrective action according to "TROUBLESHOOTING

BY INFERIOR PHENOMENA " (9-3).

Not logged

3Continue to operate unit for the time being if the cause

is not ascertained.

4There is no abnormality in electrical components,

controller boards, remote controller etc.

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