Pioneer WD Series, Руководство по обслуживанию

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18
(9) Display E9 (Firstly display P0 or P9, then change to E9)
Symptom
Display E9 (Firstly display P0 or P9, then
change to E9)
Cause
Intelligent power module of drive and module
fault
S/N Inspections How to Solve Remarks
If this code is displayed when the compressor is
started for several seconds or even not started,
check the compressor connection for
correctness
If no insert wrong, replace the
intelligent power module
Photo 15
Check if the outdoor
module is tightly installed
onto the radiating fins and
if the silicone is applied
evenly
Fix the screws again if loose.
Photo 16
Check the system
pressure.
Recharge refrigerant if the pressure
is low. Discharge some refrigerant if
the pressure is too high.
Check the outdoor
ventilation and if there is
any obstruction that
affects the normal
radiating of the air
conditioner.
Install to the position as required in
the Instruction Manual and ensure
the air inlet and outlet of the outdoor
unit is smooth.
1
Re-energize
and check the
protection
code on
display.
Firstly
display P0
“P0” appears
when the air
conditioner is
working
The above inspections are
normal, but the fault
remains unsolved
Replace the intelligent power
module
If this code is displayed when the compressor is
started for several seconds or even not started,
check the compressor connection for
correctness
If no insert wrong, replace the
intelligent power module
Cooling / heating is
normal during run
Replace the intelligent power
module
P9 appears after
the air conditioner
is started and has
run for a period of
time
If the cooling / heating is
abnormal, check the
compressor wiring for
correctness.
Insert again if loose.
Be sure to apply
silicone when
replacing
intelligent
power module.
2
Re-energize
and check the
protection
code on
display.
Firstly
display P9
When the compressor is restarted immediately
after stop, this might also cause P9 protection
because the cooling system is not stable.
Try starting the air conditioner again
after a longer period of stop