Daikin RZQ125B7W1B [231/326] Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred

Daikin RZQ71B8V3B [231/326] 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 3–83
33
4
5
1
Troubleshooting
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Turn the main power supply
off, and then disconnect the
connection between the
compressor and inverter.
Is the
secondary
current of the inverter
higher than A (see below)
for each
phase?
Is the
inverter
output voltage
generated
approximately at the same
increasing speed on each
phase after turning
on again? ()
(U-V, V-W,
W-U)
Continuity check in the
power transistor (IGBT)
Is the continuity
normal?
YES
NO
NO
YES
NO
* When operating compressor
with compressor output line
disconnected, the compressor
stops due to malfunction after
elapsed time of 5 seconds.
Therefore, check the voltage
increase for 5 seconds.
RZQ71 (1 ~ )
RZQ100 ~ 125 (1 ~ )
RZQ100 ~ 140 (3 ~ )
Cooling
Heating
Cooling
Heating
Cooling
Heating
Detection value
17A x 5 seconds or 14.8A x 260 seconds
31A × 5 seconds or 20.1A × 260 seconds
17A x 5 seconds or 12.1A x 260 seconds
17A x 5 seconds or 14.1A x 260 seconds
Compressor overload
Inspection of the compressor and
refrigerant system is required.
Replace the inverter PC board.
Replace the inverter PC board.
Compressor inspection
Inspect according to the diagnosis
procedure for abnormal noises,
vibration, operating status, etc.
of the compressor.
Electronic thermal detection value
YES
Check 5.9.4
ESIE05-03.book Page 83 Wednesday, April 6, 2005 4:09 PM

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