H2SM-14/18C03/R2
29
★ □ ★: Indoor EEPROM error: Replace the PCB of indoor unit
■ □ ★:Indoor fan motor malfunction
Yes
Yes
YES
NO
whether terminal CN7
and CN11 on indoor PCB
well inserted or not?
Pull out and reinsert the terminals
Electrify the machine again and turn it on in the cooling
operation, Measure voltage between the positions 1 ( red
wire)
and 5( black wire) of Terminal CN1 on the indoor PCB
NO
the indoor pcb is damaged and need replace
. the voltage is about
90-200vac
check whether motor
can run when
turn on the unit
the indoor motor is damaged and need
replace
NO
When motor is running Measure
whether there is voltage
pulse(0-5VDC) between the
positions 2 (middle wire) and
3(
black wire) of Terminal CN7
on the indoor PCB
the indoor motor is damaged and need
replace
the indoor pcb is damaged and need replace
NO
To Next Page
Loading...
Need help?
General
