Junkers ZWC 21-3 MFA User Manual

EA IS FLASHING
Flame not detected
Control StepOrder Measures
No:
No:
No:
12.
11.
13.
14.
Yes:
Yes:
Yes:
Is ionization electrode and ignition
bridge assembled correctly?
Correct the assembly
Push reset button
If EA still flashing
Check ignition electrodes for
damage or oxidation?
Clean or change ignition electrodes
Turn on the appliance.
Push reset button
If EA still flashing?
Check if main cable harness is
damaged or not?
Turn off the appliance.
Cut the mains supply of the appliance.
Change the cable harness
Switch on the mains supply.
Turn on the appliance.
Push reset button
If EA still flashing
Electronic card is out of order.
Switch of the appliance.
Cut mains supply
Change the electronic card.
Connect to mains supply.
Switch on the appliance.
48 | Troubleshooting
6 720 660 238 (2008/07)
48
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Junkers ZWC 21-3 MFA Specifications

General

Brand	Junkers
Model	ZWC 21-3 MFA
Category	Boiler
Language	English