Midea M4OA-36HFN1-Q User Manual

Service manual DM15-01.01.11-01en
60 Multi DC inverter R410A. Outdoor unit
11.3.2.3 Voltage protection(ODU E5)
Voltage protection
Check the voltage of
outdoor unit power supply,
whether the voltage
between L(L1) and N (L2) is
about 220~240VAC
Check the power supply
Check whether the voltage
of IPM board P and N is
normal? DC277-356V for
18-27KBtu/h; DC277-410V
for 36-42KBtu/h
Replace bridge rectifiers,
and then check whether the
system can run normally
Replace IPM board, and
then check whether the
system can run normally
Replace outdoor main board
Yes
No
No
No
No
Yes
Trouble is solved
Yes
Yes

Midea M4OA-36HFN1-Q Specifications

General

Brand	Midea
Model	M4OA-36HFN1-Q
Category	Air Conditioner
Language	English