MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF
Troubleshooting 93
7.13 P5: Condenser high temperature protection (for all models)
When condenser temperature is higher than 62 degrees for 3 seconds, the unit will stop operating.
When pipe temperature outside is lower than 52 degrees, the unit will resume operate.
Condenser T3 high temperature protection
Check whether condenser temperature is higher than
62 degrees for 3 seconds.
Check whether the resistance of condenser
temperature sensor is correct.
Replace the outdoor main PCB.
Replace the temperature sensor
Whether outdoor temperature is too high(higher than 43
degrees)or not.
Whether heat exchanger needs cleaning.
If refrigerant pipe is blocked or not?
Remove the refrigerant pipe and then
use high pressure nitrogen or
refrigerant to blow the pipe.
Vacuumed the pipe then add the
refrigerant again.
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