wallas 22 GB, Manual

Page: 92 / 325

en
Maintenance
Troubleshooting, indicating flameout / overheat
The overheating thermostat has
activated and stopped the function
of the fuel pump.
Check that the device is not in after
cooling mode. After cooling mode
uses the same signal and it’s not
malfunction but a normal procedure.
(If it is a malfunction, after 5 minutes
the red signal (1) flashes in 30
seconds interval).
Check that the main blower is
rotating.
Check that the adjustment
flaps of the warm air grills are
open.
Check the amount of
ventilation air.
Check the condition of the
warm air ducts (pressed,
blocked).
After the after cooling
procedure, start again.
No
Yes
Red
Indicating flameout
The malfunction continues
after the restart of the device.
The fuel has run out or its level is
too low for the intake hose in the
tank to reach it.
High wind pressure at the exhaust
lead-through fitting.
Water in the exhaust gas hose.
Water in the fuel.
The burner is sooted.
The fuel pump is broken.
The fuel needle is blocked.
Add fuel.
Ensure that the wind does not blow
directly in the lead-through.
Check the bends and loops of the
flue gas hose for water
(water trap).
Dewater the fuel or replace it.
4.3.3_en
Bring the device in for service.
FAULT INDICATION WITH
BLINKING LIGHTS
Red
Overheat
Yellow
FAULT INDICATION WITH
BLINKING LIGHTS
D20061
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22 GB / 30 GB
490529