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E6&E7 tree
Inspection
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>
E6
Open-circuit failure of
thermistor
Check whether the NTC
circuit is correct or not.
(mentioned in section 4)
Reconnect the wire of
Flowmeter circuit and
check again
Not
solve the problem
OK
Replace the NTC to
solve problem
Still wrong
E7
Short-circuit failure of
thermistor
Check whether the NTC
circuit is correct or not.
(mentioned in section 4)
Reconnect the wire of
Flowmeter circuit and
check again
Not
solve the problem
OK
Replace the NTC to
solve problem
Still wrong
If the problem has not been solved through all the inspection mentioned above, maybe the
PCB has a malfunction. So, replace PCB and test again.
Caution:
Because the real situation is unpredictable, inspection trees mentioned in this manual are
for reference only.
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32 -
Summary of Contents for WQP8-9339L-US
Page 3: ...Water circuit scheme Water Circuit Function Description 3 ...
Page 33: ...Troubleshooting 33 ...
Page 34: ...Troubleshooting 34 ...
Page 35: ...Troubleshooting 35 ...
Page 36: ...Troubleshooting 36 ...
Page 37: ...Troubleshooting 37 ...