SiBE18-821_C Troubleshooting for SA Indoor Unit
Troubleshooting 363
5. Troubleshooting for SA Indoor Unit
5.1 Indoor Unit PCB Abnormality
Remote
Controller
Display
A1
Method of
Malfunction
Detection
Check data from EEPROM.
Malfunction
Decision
Conditions
When data could not be correctly received from the EEPROM
EEPROM : Type of nonvolatile memory. Maintains memory contents even when the power
supply is turned off.
Supposed
Causes
îš„
External factor (noise etc.)
îš„
Defective indoor unit PCB
Troubleshooting
YES
NO
Could be outside cause
(noise, etc.) other than
malfunction.
Replace the indoor unit
PCB.
(R12999)
Turn the power supply off
once and then back on.
Return to normal?
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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