R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10
92 Troubleshooting
7.12 P4: Compressor discharged temperature protection (for all models)
When the discharged temperature of the compressor is higher than 115°C, the unit will stop running.
When the discharged temperature of the compressor is lower than 90°C , the unit resumes normal
operation automatically.
Discharged temperature of the compressor
Check whether the discharged temperature of the compressor is higher
than 115°C.
Check whether the compressor discharged
temperature sensor connects with PCB
correctly according to the wiring diagram.
Check whether resistance of compressor discharged
temperature sensor is correct or not .
Whether the discharged temperature sensor is
damaged or not.
Replace compressor discharged
temperature sensor.
Check refrigerant leaks or not.
Stop leaking and then confirm the
refrigerant volume again.
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