Daikin Super Multi NX 3MKS50E3V1B, Руководство по обслуживанию

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Troubleshooting for SA Indoor Unit - FCQG, FFQ, FHQ, FDBQ, FBQ Series SiBE121135
284 Service Diagnosis
6. Troubleshooting for SA Indoor Unit - FCQG, FFQ,
FHQ, FDBQ, FBQ Series
6.1 Indoor Unit PCB Abnormality
Remote
Controller
Display
A1
Method of
Malfunction
Detection The system checks the data from EEPROM.
Malfunction
Decision
Conditions
When the data from the EEPROM is not received correctly
EEPROM (Electrically Erasable Programmable Read Only Memory): A memory chip that holds
its content without power. It can be erased, either within the computer or externally and usually
requires more voltage for erasure than the 5 volts used in logic circuits. It functions
like non-volatile RAM, but writing to EEPROM is slower than writing to RAM.
Supposed
Causes
Defective indoor unit PCB
Troubleshooting
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Replace the indoor unit PCB.
(R11294)
Normal?
Switch the power off and on
again to restart.
NO
YES
External factor other than malfunction.
(for example, noise etc.)