Pioneer WD Series, Руководство по обслуживанию

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(20) Display P9
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 29
Cooling/heating is
normal during run
Replace the intelligent
power module.(Be sure to
apply silicone when
replacing the intelligent
power module.).
Photo 30
P9 appears
after the
air
conditioner
is started
and has
run for a
period of
time
If the cooling /
heating are abnormal,
check the compressor
wiring for
correctness.
Insert again if loose
1
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
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