Junkers ZWC 24-3 MFK User Manual

EA IS FLASHING
Flame not detected
Control StepOrder Measure
6. Is the groun d i n g connection done
No:
No:
No:
No:
No:
7.
8.
9.
10.
Yes:
correctly?
Yes:
Yes:
Yes:
Yes:
Is the gas valve working?
Turn off the appliance.
Pull out the gas valve cables
Measure resistances
of the gas armature safety valves 1
and 2.
R=160±40?
Correct ground connection
Push the reset button
If EA still flashing
Connect cables
Turn on the appliance.
Push reset button
If EA still flashing
Cut the mains supply of the appliance.
Close the gas inlet valve.
Change the gas valve.
Open the gas inlet valve.
Switch on the mains supply.
Connect cables
Turn on the appliance.
Make sure there is no gas leakage leaking.
Switch on appliance and push reset button
If EA still flashing
Go to
Is the continuous firing (without gas)
OK?
Check continuous ignition if it is
igniting or not
Service function 8.F.
Leave service function by pressing twice service button
If EA still flashing
Leave service fuction by pressing twice service button
If EA still flashing
Check connection of ignition cable
and electrode is correct or not?
Correct the cable connection
Push reset button
If EA still flashing
Turn off the appliance.
Change ignition cable
Turn on the appliance.
Push reset button
If EA still flashing
Check if ignition cable damaged or
not?
| 47Troubleshooting
6 720 660 238 (2008/07)
47
7.
7.
8.
8.
9.
9.
10.
10.
11.
11.

Junkers ZWC 24-3 MFK Specifications

General

Brand	Junkers
Model	ZWC 24-3 MFK
Category	Boiler
Language	English