Specifications

SiBE18-821 Troubleshooting for SkyAir Indoor Unit
Troubleshooting 275
5. Troubleshooting for SkyAir Indoor Unit
5.1 Indoor Unit PCB Abnormality
Remote
Controller
Display
A1
Applicable
Models
FFQ, FHQ
Method of
Malfunction
Detection
Check data from E²PROM.
Malfunction
Decision
Conditions
When data could not be correctly received from the E²PROM
E²PROM : Type of nonvolatile memory. Maintains memory contents even when the power
supply is turned off.
Supposed
Causes

Failure of PCB
Troubleshooting
YES
NO
Could be outside cause
(noise, etc.) other than
malfunction
Indoor unit PCB
replacement
(Q0531)
Turn the power supply off once
and then back on.
Normal reset?
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.