19
Fault Cause Remedy
yellow LED flashes 4 x
(after operating for a longer period of
time, the heater switches to failure)
– Summer mode with empty water
container
– Switch appliance off and allow to cool,
fill boiler with water
– Warm air outlets blocked – Check the individual outlet openings
– Circulated air intake blocked – Remove the circulated air intake blockage
yellow LED flashes 5 x – Room temperature sensor or cable faulty – Contact Truma Service
yellow LED flashes 7 x – Control panel or control panel cable
defective
– Contact Truma Service
yellow LED flashes 8 x – FrostControl heating element has a
short circuit
– Disconnect heating element plug from electronic control
unit, replace heating element
yellow LED flashes 9 x
(approx. 30 seconds after switching
on the heater)
– Gas cylinder or quick-acting valve in
the gas supply line closed
– Check gas supply and open valves
– Gas cylinder empty – Replacing a gas cylinder
(after operating for a longer period of
time, the heater switches to failure)
– Gas pressure regulation system iced
up
– Use regulator heater (EisEx)
– Butane content in the gas cylinder too
high
– Use propane (butane is unsuitable for heating, particularly
at temperatures below 10°C)
Red LED flashes 1 – 8 times – Heater fault – Please contact Truma Service.
Determine the flashing code (short, long) if necessary:
red LED on heater electronics.
Green LED still illuminated after
the heater has been switched off
– After-running is active to reduce the
temperature of the appliance
– No fault. After-run switches itself off after max. 5 minutes
Room heating does not react to
adjustment immediately
– After-running is active to reduce the
temperature of the appliance
– No fault. After-run switches itself off after max. 5 minutes
After switching on the green and
the red LED illuminate
– Faulty electronics – Contact Truma Service
If these actions do not remedy the problem, please contact Truma Service.
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