[
IX
Troubleshooting ]
- 237 -
HWE10130
GB
Items to be checked
Phenomena
Remedy
[3]
Check whether
the inverter is
damaged.
(No load)
(1) Disconnect the inverter
output wire from the ter-
minals of the INV board
(SC-U, SC-V, SC-W).
1)
Inverter-related problems are de-
tected.
Connect the short-circuit con-
nector to CN6, and go to sec-
tion [1].
(2) Disconnect the short-cir-
cuit connector from CN6
on the INV board.
2)
Inverter voltage is not output at the
terminals (SC-U, SC-V, and SC-W)
Replace the INV board.
(3) Put the outdoor unit into
operation.
Check the inverter output
voltage after the inverter
output frequency has sta-
bilized.
3)
There is an voltage imbalance be-
tween the wires.
Greater than 5% imbalance or 5V
Replace the INV board.
4)
There is no voltage imbalance be-
tween the wires.
Normal
*Reconnect the short-circuit
connector to CN6 after check-
ing the voltage.
[4]
Check whether
the inverter is
damaged.
(During com-
pressor opera-
tion)
Put the outdoor unit into oper-
ation.
Check the inverter output volt-
age after the inverter output
frequency has stabilized.
1)
Overcurrent-related problems oc-
cur immediately after compressor
startup.
Error code : 4250
Detail code : 101, 106, 107
a. Check items [1] through [3]
for problems.
b. Check that high and low
pressures are balanced.
c. Check that no liquid refrig-
erant is present in the
compressor.
→
Go to "d." when the
problem persists after
compressor startup was
repeated several times.
If normal operation is re-
stored, check the crank-
case heater for problems.
d. Check that there is a pres-
sure difference between
high and low pressures af-
ter compressor startup.
→
Check the high pressure
with LED monitor for
changes.
Replace the compressor if
there is no pressure differ-
ence. (the compressor
may be locked.)
2)
There is a voltage imbalance be-
tween the wires after the inverter
output voltage is stabilized.
Greater than the larger of the fol-
lowing values: imbalance of 5% or
5V
Replace the INV board if there
is a voltage imbalance.
Check the crankcase heater
for problems if there is no volt-
age imbalance.
→
When the error occurred, liq-
uid refrigerant may have been
present in the compressor.
[5]
Check the fan
motor ground
fault or the
winding.
Remove the wire for the out-
door fan motor, and check the
fan motor megger and the
winding resistance.
1)
Fan motor megger failure
Failure when the megger is 1Mohm
or less.
Replace the fan motor.
2)
Fan motor disconnection
Standard: The winding resistance
is approximately several ohm.
(It varies depending on the temper-
ature, or while the inner thermo is
operating, it will be ohm)
Содержание PUHY-RP200
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Страница 88: ... 79 HWE10130 GB VI Refrigerant Circuit 1 Refrigerant Circuit Diagram 81 2 Principal Parts and Functions 82 ...
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Страница 259: ... 250 IX Troubleshooting GB HWE10130 ...
Страница 260: ... 251 HWE10130 GB X LED Monitor Display on the Outdoor Unit Board 1 How to Read the LED on the Service Monitor 253 ...
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