Panasonic CS-A123KR, Service Manual, Page: 74 / 124

Nature of fault Symptom
-
Electric current during operation becomes approximately 20% lower than the normal value.
Insufficient compressing of a
compressor -
The discharge tube of the compressor becomes abnormally hot (normally 70 to 90°C).
-
The difference between high pressure and low pressure becomes almost zero.
-
Electric current reaches a high level abnormally, and the value exceeds the limit of an ammeter.
some cases, a breaker turns off.
Locked compressor
-
The compressor is a humming sound.
-
Electric current during operation becomes approximately 80% lower than the normal value.
Insufficient switches of the 4-
way valve
-
The temperature different between from the discharge tube to the 4-way valve and from suction
to the 4-way valve becomes almost zero.
14. Technical Data
74