Repair the leakage of system pipe and add refrigerant
according to the required volume
Measure if the exhaust temperature of compressor
reaches 118
When the exhaust temperature of compressor is higher
than 107, check if the corresponding liquid bypass plug
is connected through?
Check if the corresponding liquid bypass sub-assembly is
in good condition, e.g. if the solenoid valve is in good
condition and if the capillary pipe is blocked?
When the exhaust temperature of compressor is higher
than 102, Whether the openness of corresponding
indoor unit electronic expansion valve is increased?
When the exhaust temperature of compressor is higher
than 110, Whether compressor reduces its capacity?
Check if the capacity output of outdoor unit is equal to
the capacity demand of indoor units?
Exhaust Temperature Protection
Measure if the resistance of temperature sensor is
correct?
Replace the mainboard of outdoor unit
Replace the corresponding exhaust temperature
sensor
Replace the liquid bypass sub-assembly
Check if the electronic expansion valve is correct
Change the mainboard chip of the outdoor units
Notes: (1) The AC frequency conversion machine includes air-out senor and shell top sensor.
(2) The temperature protection point in different machines are different.
(3) There is no liquid refrigerant by-pass in frequency conversion machine
Change the outdoor unit mainboard
Change corresponding electronic expansion
valve Sub-Assy
Refer to the dial-up of indoor and outdoor unit
YES
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
YES
To Next Page
Loading...
Need help?
General
