Panasonic CS-CE9JKE Air Conditioner User Manual


 
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15.4.22. F99 (Output Over Current Detection)
Malfunction Decision Conditions
During operation of cooling and heating, when an output over-current (20.2A) is detected by checking the current that flows in
the inverter DC peak sensing circuitry.
Malfunction Caused
DC peak due to compressor failure.
DC peak due to defective power transistor(s).
DC peak due to defective outdoor unit PCB.
Troubleshooting
Checking the power transistor
Never touch any live parts for at least 10 minutes after turning off the circuit breaker.
If unavoidable necessary to touch a live part, make sure the power transistor’s supply voltage is below 50V using the tester.
For the UV
W, make measurement at the Faston terminal on the board of the relay connector.
Tester’s negative terminal Power transistor (+) UVW Power transistor (-) UVW
Tester’s positive terminal UVW Power transistor (+) UVW Power transistor (-)
k lareveSecnatsiser lamroN to several M
ro 0ecnatsiser lamronbA
20.2A?