Troubleshooting - Vaillant atmoMAG mini 11-0/0 XI Manuel D'utilisation

8 Troubleshooting

8 Troubleshooting
a
Danger!
Risk of death due to malfunctions!
Faulty or malfunctioning safety devices may
lead to life-threatening situations.
>
Check the unit's safety cut-out.
a
Danger!
Risk of carbon monoxide poisoning!
If air flow conditions in the chimney are per-
manently poor, flue gases may flow back
unchecked from the chimney into the installa-
tion room if the atmospheric sensing device is
not operating.
>
Under no circumstances should you switch
off the atmospheric sensing device (flue
gas sensor).
>
Never tamper with this device as this may
prevent it from operating correctly.
The faults listed below may only be rectified by a quali-
fied engineer.
• Only use genuine spare parts for repairs.
• Make sure the parts are correctly fitted and that their
original position and alignment are retained.
22
Problem Cause
No function, no Flat batteries.
LED lights up.
The yellow LED Low batteries.
flashes. Loud
sparking.
The appliance Gas supply inter-
will not start rupted.
and the red Air in the gas sup-
LED flashes. ply pipe.
The red LED Gas supply inter-
flashes during rupted.
operation. Air in the gas sup-
ply pipe.
The ionisation cur-
rent is too low.
Flame detector
defective.
The appliance Low batteries.
stops. Incorrectly installed
flue system (flue
pipe too short).
Flue pipe partially
blocked.
The safety thermo-
stat or flue gas sen-
sor is defective.
Ruptured cable or
short circuit in the
cable of the safety
thermostat and flue
gas sensor.
Tab. 8.1 Troubleshooting
Installation manual atmoMAG mini 11-0/0 XI 838291_05
Remedy
Replace the batteries with
new ones.
Make sure the cold water
shut-off valve is open.
Clean the strainer in the
cold water supply pipe.
If the problem persists,
notify customer service.
Replace the batteries with
new ones.
Ensure the gas supply.
For liquid gas:
Replacean empty gas bot-
tle with a full one.
Make sure that the cut-off
valve on the gas connec-
tion is open.
Open and close the water
tap several times to get rid
of air in the gas supply.
Check the cable connection
to the plug contact.
Replace the electrodes.
Replace the servo valve.
If the problem persists,
notify customer service.
Ensure the gas supply.
For liquid gas:
Replace an empty gas bot-
tle with a full one.
Open and close the water
tap several times to get rid
of air in the gas supply.
Check the ionisation cur-
rent. Check the cable con-
nection. Replace the ionisa-
tion electrode is necessary.
If the problem persists,
notify customer service.
Replace the batteries with
new ones.
Check that the flue system
is correctly installed and is
long enough.
Make sure that the flue gas
exit is unrestricted.
Replace the safety thermo-
stat or the flue gas sensor
along with their cables.
If the problem persists,
notify customer service.
Contact your heating engi-
neer.