Daikin RZQ125B7W1B [218/326] 70 part 3 troubleshooting

Daikin RZQ125B7W1B [218/326] 70 part 3 troubleshooting
Error Codes: Outdoor Units ESIE05-03
3–70 Part 3 Troubleshooting
3
1
3
4
5
Troubleshooting
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Normal reset?
Is coil
resistance of
electronic expansion valve
normal? (40 to 50)
()
YES
NO
Is the
electronic
expansion valve coil
connected to outdoor unit
PC board?
NO
NO
Turn the power supply
off once and back on.
Problem could be caused by
external factor (noise, etc.)
other than malfunction.
Connect correctly.
Replace the motorized
valve coil.
Replace the main unit of
solenoid valve (Y2S).
Replace the electronic
expansion valve coil.
Replace the outdoor unit
PC board (A1P).
NO
YES
YES
With
remote controller
ON, doesn’t the unit
operate and is “E9”
displayed?
NO
Is there
difference in
temperature before and
after solenoid valve
(Y2S) during
operation?
YES
Measure the resistance between each pin of
connector and make sure that the resistance ranges
between 40 and 50.
1
2
3
4
5
6
Measurement point
1—5
2—5
3—5
4—5
ESIE05-03.book Page 70 Wednesday, April 6, 2005 4:09 PM

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