Daikin RZQ140B7W1B [245/326] Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred

Daikin RZQ100B8V3B [245/326] Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred
ESIE05-03 Error Codes: System Malfunctions
Part 3 Troubleshooting 3–97
33
4
5
1
Troubleshooting 2
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Turn OFF the power supply
once and then ON again.
Is the HAP blinking?
Is the HAP blinking?
Is the HAP ON?
Is the HAP
blinking?
Does
the resistance
between VCC and
UVW, GND-UVW of the
signal line keep the
balance?
"U4" is displayed
at all times.
Turn OFF the power supply
and disconnect No.3 wire of
the Indoor-Outdoor connection
wiring, and then turn ON the
power supply again.
From the preceding page
Check the connector of
the fan motor
Faulty indoor unit PC board.
External factors (e.g. noises)
are supposed.
Malfunction in the power
supply system or faulty
outdoor unit PC board.
Faulty indoor unit PC board.
Replace the fan motor.
YES
NO
NO
NO
YES
YES
NO
Faulty outdoor unit PC board.
YES
Reset to normal.
External factors (e.g. noises)
are supposed.
YES
NO (OFF)
NO (ON or OFF)
YES
Check the normal
HAP of the
microcomputer
for outdoor unit.
ESIE05-03.book Page 97 Wednesday, April 6, 2005 4:09 PM

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