Mitsubishi SKM32ZA User Manual

110
Outdoor unit error
[Broken power transistor,
broken compressor wire]
Is output voltage applied to all 3
phases of power transistor?
YES
YES
NO
NO
Inspect compressor. (Broken coil
wire)
Is compressor wiring connected
securely?
Connect securely.
Over current
[Overload operation, compressor
lock, overcharge]
Defective inverter
Secure space for inlet and outlet.
Discharge refrigerant.
Is refrigerant charge quantity adequate?
Is outdoor ventilation condition good?
Inspect compressor.
Defective inverter
YES
YES
NO
NO
YES
Power transistor overheat
[Poor cooling]
Secure space for inlet and outlet.
Inspect outdoor fan motor.
Is outdoor fan motor operating
properly?
Is there any shortcircuit?
YES
YES
NO
NO
Defective inverter
Compressor overheat
[Gas shortage, defective
discharge pipe thermistor]
Is discharge pipe thermistor
resistance value good?
Is sufficient quantity of refrigerant
circulated?
Defective inverter
YES
YES
NO
NO
YES
NO
Gas shortage
Connector connection check, resistancevalue
check, replacement of discharge pipe thermistor
Does trouble persist after
charging gas?
Clogged capillary tube,
etc.
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Mitsubishi SKM32ZA Specifications

General

Brand	Mitsubishi
Model	SKM32ZA
Category	Air Conditioner
Language	English