Troubleshooting by Indication on the Remote Controller
362
Heating
High pressure
Low pressure
Frequency
The opening degree of the outdoor unit electronic expansion valve becomes larger.
The outdoor unit electronic expansion valve fully opens and frequency increases.
Discharge pipe or low pressure drooping control
(High pressure
is maintained at
a constant
level.)
To maintain low pressure,
frequency drops due to the
capacity control.
Frequency drops
due to the drooping
control.
(Degree of refrigerant shortage)
Proper amount
Frequency comes to
the minimum level.
Higher degree of
shortage
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