Mitsubishi Electric SRK19CIS Technical Manual page 35

(4) Troubleshooting procedure (If the air conditioner runs)
Check the self-diagnosis display.
Identify the faulty component by using the check
procedure corresponding to the content of the trouble.
Replace the faulty component, then perform an
operation check.
Note (1) Even in cases where only intermittent stop data are generated, the air conditioning system is normal. However, if the same protective operation recurs
repeatedly (3 or more times), it will lead to customer complaints. Judge the conditions in comparison with the contents of the complaints.
Confirm the contents of the customer complaint.
NO
The cause of the trouble can
be specifically identified.
See page 35.
Eliminate the cause of the trouble and perform an
operation check.
34
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YES