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