Panasonic CU-3KS19NBU Technical & Service Manual page 75

Problems
Inspection
points
Breaker
Refrigerant gas pressure
8-4-2. Inspection Points for Each Part
(1) Outdoor control circuit board
Refer to 8-3-1. Checking the outdoor unit.
Do not remove or insert the outdoor control circuit board connector when power is being supplied to it.
NOTE
(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.
Indoor unit
75
Outdoor unit Others
No. of
Inspection
Points for
Each part
(8)
(9)