Mitsubishi Heavy Industries HMS140VA1 User Manual

Service
-
185
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'13 • HM-T-193
Troubleshooting guide
E59 - Inverter error
(1) (2)
(1)
YES
NO
Is power supply voltage OK?
YES
YES
NO
NO
YES
YES
NO
NO
YES
NO
YES
NO
NO
YES
NO
Replace control PCB
Is the voltage 15VDC detected
between 㽳 and 㽴 of CNI3 on
the control PCB side?
Is the voltage 15VDC detected
after disconnecting the
connector of outdoor fan motor?
Can the compressor startup?
Is the pressure balance at
starting OK ?
Is the insulation resistance and
coil resistance of compressor OK?
Is the power transistor module
OK ?
Is
the inverter output OK ?
Try to startup several times
Can start ?
Check power supply
Replace Inverter PCB
If not solved yet, replace
noise filter PCB as well
Replace the outdoor
fan motor
OK
Check refrigerant amount
and refrigerant cir cuit
Replace the compressor
Replace the inverter PCB
Replace the inverter PCB
Replace the compressor
Note (1): Under anomalous conditions,
the voltage becomes less than 14VDC.
Note (2): How to check voltage a
t
CN13 ⇒See E51
Note: Several times restarting trial may
make a recovery from startup failure,
because liquid refrigerant migrated in
the compressor could be discharged
during several trial.

Mitsubishi Heavy Industries HMS140VA1 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	HMS140VA1
Category	Heat Pump
Language	English