Toyotomi GAN GAG A180IV Service Manual page 41

Water leakage
Abnormal sound
and shake
Note:
1. When maintaining, before detecting the voltage between the modular PN is less than 50V, please
never touch any of the terminals, in order to avoid electric shock.
2. When replacing the batteries, commutating bridge, both of them should be coated with the coolant.
Drainage pipe blocked or broken
Wrap of refrigerant pipe joint is not close
enough.
Fan of indoor unit contacts other parts.
Foreign object in indoor unit
Compressor shakes too much.
Touch of pipeline of outdoor unit
Touch of inner plates
Louver of outdoor unit touched outer
case.
Abnormal sound inside compressor
Abnormal solenoid sound from 4-way
valve when heating
Change drainage pipe
Re-wrap and make it tight.
Adjust fan location.
Take out the foreign object.
Adjust support washer of compressor, and
tighten loosen screws.
Separate the touching pipeline.
1. Tighten connect screw.
2. Stick absorbing clay between plates.
Adjust location of louver.
Change compressor
Circuit-short inside solenoid of the valve
and change the solenoid valve.
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