Daikin BRC7E61W Service Manual Page 191

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  • TROUBLESHOOTING
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Troubleshooting by Remote Controller Display / LED Display SiE25-110
182 Troubleshooting
Troubleshooting 2
Turn off the power supply,
disconnect the NO.2 indoor-
outdoor transmission wire, and
turn power supply back on.
Is H1P blinking?
YES
YES
YES
NO (ON or OFF)
NO (OFF)
NO
Is H1P blinking?
YES
NO
NO
Is H1P blinking?
Is "U4" displayed
constantly?
Continued from previous page
Is H1P on?
Check of
outdoor unit
microcom-
puter normal
H1P
YES
Turn the power supply off once
and then back on.
Resets normally.
Could be outside cause
(noise, etc.).
Failure of indoor unit PC
board
Failure of indoor unit PC
board
Failuer of outdoor unit PC
board or malfunction of
power supply system
Failure of indoor unit PC
board
Resets normal
Could be outside cause
(noise, etc.)
(S2040)
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