Haier MRV II - Part 4 Wiring Diagram

Part 3
[54] voltage too low
chec k if CNVDC
wiring is normal
no
yes
make improvement
chec k if power supply
voltage is normal
improve the power
supply surroundings
check if wiring of
electrolytic capacitor
and reactor is normal
re-wiring
no
no
chec k if AC
contactor acts
check the corresponding circuit
no
yes
no
[73] fan motor detecting out of control
- 135 -
check if magnetic
ring is fixed well
no
yes
check if reactive
terminal HULL of fan
motor is fixed well
re-fix
no
if fan motor
driving module is
damaged
replace fan motor driving module
re-fix
yes
yes