A1" Failure Of Indoor Unit Pc Board - Daikin SkyAir RZQ200 · 250C7Y1B Service Manual

Diagnosis by Remote Controller
4.3

"A1" Failure of Indoor Unit PC Board

A1
Remote
Controller
Display
Applicable All indoor unit models
Models
Method of Check data from E²PROM.
Malfunction
Detection
Malfunction When data could not be correctly received from the E²PROM
E²PROM : Type of nonvolatile memory. Maintains memory contents even when the power
Decision
supply is turned off.
Conditions
Supposed
Causes
Troubleshooting
104
Failure of PC board
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Turn the power supply off once
and then back on.
Normal reset?
NO
YES
SiBE26-701
Could be outside cause
(noise, etc.)
other than malfunction
Indoor unit PC board
replacement
Troubleshooting