Outdoor Unit Error - Mitsubishi Heavy Industries SRK20ZD-S1 Technical Manual

Outdoor unit error

Compressor overheat
Is Discharge pipe sensor
resistance value good?
Is sufficient quantity of refrigerant
circulated?
Is output voltage applied to all 3
phases of power transistor?
(Refer to page 53 for details)
YES
Is compressor wiring connected
securely?
YES
Inspect compressor.
(Page 47)
YES
YES
Defective inverter
-
NO
Defective inverter
NO
Connect securely.
Connector connection check, resistance
NO
value check, replacement of discharge pipe
sensor
NO
Does trouble persist after
charging gas?
YES
Clogged capillary tube,
etc.
48
-
[Broken power transistor
broken compressor wire]
[Gas shortage, defective discharge
pipe sensor]
NO
Gas shortage