Self-Diagnosis; Troubles And Solutions - Midea MFGA-60ARDN1-QC2 Service Manual

10.2

Self-diagnosis

Codes
P0
P1
Ed Outdoor unit protection /outdoor temp. sensor is circuit or
E1 Communication protection between indoor and outdoor
E2
E3
E4
E7
10.3

Troubles and Solutions

Before calling for service, please review the following list of common problems and
solutions.
Problem Possible Cause
Air conditioner Power failure
does not
The power supply is disconnected.
operate at all
The power fuse is blown.
The timer is set.
The batteries of the remote control
are exhausted
Air conditioner The temperature setting is too high
does not or too low.
cool or The air filter is clogged with dust
heat well
The air inlet or outlet of the outdoor
unit is blocked
Doors or windows are open
Air conditioner The air inlet or outlet of the outdoor
does not unit is blocked
cool or Three-minute protection feature
heat at all
The temperature setting is not
appropriated
Contents
Evaporator low temp. protection
Defrosting or anti-cold air
short circuit
Temp. sensor T1 is open circuit or short circuit
Temp. sensor T2 is open circuit or short circuit
Temp. sensor T2B is open circuit or short circuit
EEPROM chip malfunction
40
units
Solutions
Wait for power restoring
Switch on the main power
switch
Change the fuse
Wait or cancel timer setting
Change the batteries.
Set a more comfortable
temperature.
Clean the filter
Clear up the block
Close the doors or windows
Clear up the block first, then
begin to operate.
Wait for a while
Set the temperature
properly