SiAU18-715 Troubleshooting for Outdoor Unit
Troubleshooting 357
7. Troubleshooting for Outdoor Unit
7.1 Faulty Outdoor Unit PCB
Remote
Controller
Display
E1
Applicable
Models
AII outdoor unit models
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
Defect of outdoor unit PCB (A1P)
Troubleshooting
Turn off the power once and
turn on again.
YES
Return to normal?
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
External factor other than
malfunction (for example,
noise etc.).
Replace the outdoor unit
main PC Board (A1P).
(Q0550)
NO
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