Daikin FCQ71B7V3B [211/381] Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred

Daikin FCQ100DV3B [211/381] Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred
ESIEN05-04 Error Codes: System Malfunctions
Part 3 Troubleshooting 4–5
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 the power supply
off once and then back on.
Turn off the power
supply, disconnect the NO.2
indoor-outdoor transmission
wire, and turn power supply
back on.
Failure of outdoor unit PCB.
Failure of indoor unit PCB.
Indoor PCB malfunction.
Resets normally.
Could be outside cause (noise...).
Failure of outdoor unit PCB or
malfunction of power supply system.
Resets normally.
Could be outside cause (noise...).
YES
YES
YES
YES
YES
Check of
outdoor unit
microcomputer
normal HAP
NO
NO
NO
NO (ON or OFF)
NO (OFF)
Continued from
previous page
"U4" displays
constantly?
Is HAP flashing?
Is HAP on?
Is HAP flashing?
Is HAP flashing?

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