Sanyo CLM2472 Service Manual - Page 55
Inspection Points for Each Part
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Others Indoor unit does not operate. Operation lamp blinking. Operation lamp does not illuminate. Indoor fan dose not turn. Outdoor unit does not operate. Outdoor fan dose not turn. The compressor (only) does not operate. The compressor stops on occasion. The compressor speed does not increase. The electric expansion valve does not operate. Does not cool or cooling performance is inadequate. Problems Indoor unit Inspection points Breaker Refrigerant gas pressure Outdoor unit Others No. of Inspection Points for Each part (8) (9) 8-4-2. Inspection Points for Each Part (1) Outdoor control circuit board Refer to 8-3-1. Checking the outdoor unit. NOTE Do not remove or insert the outdoor control circuit board connector when power is being supplied to it. (The controller will be damaged.) (2) Fuse Check it visually or the continuity with a tester. (3) Compressor Check for an open circuit in the compressor coil winding. (4) Compressor protective sensor (compressor discharge temperature thermistor) Check that the senseor is securely contained in the thermostart holder. (5) Coil thermistor Check that the sensor is securely contained in the thermostat holder. 55