Troubleshooting For Ffq Series; Indoor Unit Pcb Abnormality - Daikin RMXS-L Series Service Manual

Troubleshooting for FFQ Series

5. Troubleshooting for FFQ Series
5.1

Indoor Unit PCB Abnormality

A1
Error Code
Method of Error
The system checks the data from EEPROM.
Detection
Error Decision
When data could not be correctly received from the EEPROM
EEPROM : Type of nonvolatile memory. Maintains memory contents even when the power supply
Conditions
is turned off.
 External factor (noise etc.)
Supposed
 Defective indoor unit PCB
Causes
Troubleshooting
167
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Turn the power supply off
once and then back on.
Return to normal?
NO
YES
SiUS181305E
Could be other causes
(noise, etc.) than
malfunction.
Replace the indoor unit
PCB.
(R15319)
Troubleshooting