Midea MV6-R450WV2GN1 - Page 148

V6R VRF 50/60Hz
147
Part
6
-
Diagnosis and Troubleshooting
Possible causes
 Temperature is out of range.
Procedure
U21, U22, U23
After selecting n15 for forced heating
operation in the menu for a period of
time (increasing the inside temperature),
enter the self-test again.