E1" Indoor Unit: Pc Board Defect - Daikin ALTHERMA HT ERSQ 011 AA Service Manual

Troubleshooting by Indication on the Remote Controller

3.13 "E1" Indoor Unit: PC Board Defect

E1
Remote Control
Display
Subcode 3
Applicable Models All indoor units
Related to: R-134a compressor
Method of
Check data from E²PROM
Malfunction
Detection
Malfunction When data could not be correctly received from the E²PROM
Decision Conditions E²PROM: Type of nonvolatile memory. Maintains memory contents even when the power supply is
turned off.
 Defect compressor main PC board (A4P)
Supposed Causes
Troubleshooting
156
Be sure to turn off power switch before connecting or disconnecting connector,
otherwise parts may be damaged.
Caution
Turn off the power once and
turn on again.
Return to normal?
NO
YES
ESIE09-08A
External factor other than
malfunction (for example,
noise etc.).
Replace the indoor unit
compressor main PC Board
(A4P).
Troubleshooting