F7 IS FLASHING
Flamed detected after appliance switched off.
Control StepOrder Measures
1.
Yes:
No:
2. Check if main cable harness is damaged
or not?
If F7 still flashing
3. Is the gas valve working?
If F7 still flashing
4. Electronic card is out of order.
Check ionization electrode
For damaged and/or oxidation
Clean or change
Switch on the appliance
Push reset button
ionization electrode
Turn off the appliance
Cut the mains supply voltage of the appliance.
Change the cable harnedd
Switch on the mains supply voltage
Turn on the appliance
Push the reset button
Cut the mains supply voltage of the appliance.
Close the gas inlet valve
Change the gas valve
Open the gas inlet value
Switch on the mains supply
Connect cables
Turn on the appliance
Make sure there is no gas leakage
Switch on the appliance and push reset button
Switch off the appliance
Cut mains supply
Change the electronic card
Connect to mains supply
Switch on the appliance
Turn off the appliance
Pull out the gas valve cables
Measure resistances
Of the gas armature safety valves 1
and 2.
R=160±40?
| 49Troubleshooting
6 720 660 238 (2008/07)
49
2.
2.
3.
4.
If F7 still flashing
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