ESIE09-05 Troubleshooting by Indication on the Remote Controller
Troubleshooting 181
3.15 “E1” Outdoor Unit: PC Board Defect
Remote
Controller
Display
E1
Applicable
Models
ERQ 125 ~ 200 A7V1
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 PC board (A1P)
Troubleshooting
Turn off the power once and
turn on again.
Return to normal?
YES
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).
(V3064)
NO
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