Daikin RZQ125B7W1B [237/326] Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred

Daikin RZQ125B8V3B [237/326] Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred
ESIE05-03 Error Codes: Outdoor Units
Part 3 Troubleshooting 3–89
33
4
5
1
Troubleshooting
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Check
LED on the
outdoor unit PC board
(Open phase?)
Open phase
of power supply voltage?
Is the voltage
imbalance between phases
large?
Inspect the main
circuit wiring.
Service
life of capacitor
(Has the capacitor been
used for a long
time?)
Faulty
diode module
(open, disconnected)
Other factors than open phase
Field factors
Field factors
Replace the MS.
Correct the wiring.
Replace the electrolytic
capacitor.
Replace the power unit.
Faulty outdoor unit PC
board
(Note)
Check for faulty contact,
disconnection, K11R, K12R
deposited or fused between
power supply and inverter.
(Note)
Target : ±10V between phases,
R-S, S-T, T-R
NO
YES
YES
NO
YES
NO
NO
YES
YES
NO
YES
NO
ESIE05-03.book Page 89 Wednesday, April 6, 2005 4:09 PM

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