SiBE041011EC CheckService Diagnosis 1085.13 Capacitor Voltage CheckCheck No.21 RK(X)S60F3V1B, 71 class onlyBefore this check, be sure to check the main circuit for short circuit.With the circuit breaker still on, measure the voltage according to the drawing of the model inquestion. Be careful never to touch any live parts. To prevent an electrical shock, use a multimeter to check that the voltage between P (+) andN (–) is 50 V or less. The surface of the test points (P, N) may be covered with the coating. Be sure to make firmcontact between the multimeter probes and the test points.5.14 Power Module CheckCheck No.22 Check to make sure that the voltage between (+) and (–) of the power module is about 0 Vbefore checking. Disconnect the compressor harness connector from the outdoor unit PCB. To disengage theconnector, press the protrusion on the connector.Multimeter(DC voltage range)(R18183)N(–) P(+) CoatingPCBMultimeter probe(R17868)Positive terminal (+) ofdigital multimeterPower module(+)UVW Power module(–)UVWNegative terminal (–) ofdigital multimeter UVW Power module(+) UVW Power module(–)Resistance is OK. several kΩ ~ several MΩResistance is NG. 0 Ω or ∞
