Mitsubishi Heavy Industries HMS140VA1 User Manual

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184
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Service
'13 • HM-T-193
E57 - Low refrigerant
YES
YES
Correct it.
NO
NO
NO
Are the service valves fully open?
Is the connecton of the sensor
for indoor heat exchanger
temperature (BT15) or for inlet
water temperature (BT3) OK?
Are the characteristics of the
sensor for indoor heat exchanger
temperature (BT15) or for inlet
water temperature (BT3) OK?
YES
NO
Is the low pressure normal during
operation?
YES
Defective control PCB→replace.
Top up refrigerant.
Defective the sensors for
indoor heat exchanger
temperature or inlet water
temperature→replace.
Open the service valves.
Troubleshooting guide

Mitsubishi Heavy Industries HMS140VA1 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	HMS140VA1
Category	Heat Pump
Language	English