R410A All DC Inverter Mini VRF MCAC-VTSM-2016-02
70 Troubleshooting
4.9 P1 malfunction: High pressure protection
Judge 1: whether the wiring is correct.
Judge 2: whether the wire body is broken.
Judge: short-circuit high pressure switch. Check the
system can operate normally.
Replace the high pressure
switch.
Check whether the cooling system operates normally.
Judge 3: whether high pressure of the system is too high.
Judge 4: whether side air duct of outdoor unit meets the
standard.
Judge 5: whether the heat exchanger needs cleaning.
Judge 7: whether the pipeline is blocked.
Judge 6: whether the throttle part is stuck, stocked or works
abnormally.
Change throttle parts to
clean the blockages.
To Next Page
Loading...
Need help?
General
