Advertisement
M‐Thermal Split
Situation 2: L1 or L2 error appears after the compressor has been running for a period of time and the compressor
speed is over 20rps
Relay on outdoor unit main PCB is open
Replace the inverter module
Notes:
1.
If the fan motor is running and the DC voltage between terminals P and N on inverter module declined, Relay on the main control board ofoutdoor
unit is open.
2.
When replacing an inverter module, a layer of thermally conductive silica gel should be painted on IPM module (on the reverse side of the inverter module
PCB). Refer to Figure 4‐4.1.
relay
76
L1 /L2
No
2
Midea CAC Confidential
Yes
Replace the outdoor unit main PCB
201909
Hide quick links:
Advertisement
