Electrolux EXH09HL1W Service Manual page 40

E6 Malfunction
(4) Communication Malfunction between Indoor and Outdoor Units
Communication malfunction between indoor and outdoor units: E6 is displayed and operation LED lamp is off for 3s and blinks
for 6 times. (That the LED lamp is on for 0.5s and off for 0.5s is a blink.)
When communication between indoor and outdoor units is normal, communication LED lamp of indoor unit blinks ( off for 0.5s
and on for 0.5s). When correct signal has not been received for continuous 3 minutes, there is communication malfunction and
communication LED lamp will be off.
Diagram of Communication LED lamp of Indoor Unit:
Flowchart:
Start
Is communication wire
reliably earthed? Is there any
loose wire or poor contact?
No
Do the mainboard mismatch display
board or are mainboards of IDU
and OUD mismatched?
No
Is there any wrong
wire connection?
No
Replace
controller
End
210-10 ADL
Poor contact of
any line may incur
communication
malfunction.
Connect
Yes
communication
wire correctly.
No
Assemble
Yes matched
controller
No
Correct wire
connection
No
40/62
Indicator
communication signal
Is malfunction
Yes
eliminated?
Is malfunction
Yes
eliminated?
Is malfunction
Yes
eliminated?
of
599 75 60-77