Manual Trumatic Combi 6 (page 15 of 60) (English, German, Dutch, Danish, French, Italian, Spanish)

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Fault Cause Rectification

No LED is shining, the device is

switched on and is supplied with

operating current.

Automatic restart is blocked,

e.g. after a power failure.

– Reset (fault reset) by switching off, waiting 5 seconds and

then switching on again.

–

After switching on (winter and sum-

mer operation) none of the LEDs

are lit.

No operating voltage.

Device fuse or vehicle fuse

defective.

–

Check 12 V battery voltage, charge if necessary.

Check all electrical plug connections.

Check the unit or vehicle fuse and replace if necessary

(see fuses).

–

The green LED comes on when the

unit is switched on but the heater

does not operate.

The temperature setting on the

control panel is lower than the

room temperature.

– Select higher room temperature at the control panel.–

After switching on the heating system,

the green LED shines and

the red LED flashes with 5 Hz,

the red LED flashes with 1 Hz,

the red and the yellow LEDs flash

alternately with 1 Hz.

–

Open window above cowl

(window switch).

Under-voltage.

Battery voltage is too low

< 10.0 V.

Threatening under-voltage.

Battery voltage is too low

< 10.4 V.

There is a threat of under-

voltage when heating up

the water.

Battery voltage is too low

< 10.4 V.

–

Close window.

Charge battery. If necessary replace old battery.

Charge battery.

–

After the heater is switched on, the

green LED is lit and the red LED blinks.

Electronics are defective.– Please contact the Truma Service Centre.–

Approximately 30 seconds after the

heater is switched on, the red LED

is lit.

Gas cylinder or quick-closure

valve in the gas line is closed.

Combustion air infeed or ex-

haust outlet is sealed.

–

Check gas supply and open valves.

Inspect openings for contamination (slush, ice, leaves, etc.)

and remove contamination if necessary.

–

After operating for a longer period of

time, the heater switches to failure.

Summer operation with empty

water tank.

Hot-air outlets blocked.

Recirculated air intake

blocked.

Gas pressure regulator

iced up.

Butane content in the gas

cylinder too high.

–

Switch device off and allow to cool. Fill boiler with water.

Check individual outlet apertures.

Remove blockage from recirculated air intake.

Use regulator heating (EisEx).

Use propane (at temperatures below 10 °C in particular,

butane is unsuitable for heating purposes).

–

Green and red LEDs flash (with 5 Hz)

after the heating system has been

switched off.

Green LED flashes (with 5 Hz)

after the heating system has been

switched off.

Unit was switched off during

failure. After-running is active

in order to reduce the unit’s

temperature.

After-running is active in

order to reduce the unit’s

temperature.

–

After-running will switch off after a few minutes. Only at

that time will a failure reset be possible (switch off and then

back on).

No failure. After-running will switch off after approximately

5 minutes.

–

Water supply

After the heater is switched off, the

drain valve opens (FrostControl).

Temperature at drain valve less

than approx. 3 °C.

– Switch the heater on. If the temperature is below approxi-

mately 3 °C, the drain valve will open automatically! If the

heater is not in operation, the drain valve can be reclosed

only when the temperature is approximately 7 °C or higher!

Use heating element for FrostControl.

–

The drain valve (FrostControl) can

no longer be closed.

Temperature at drain valve is

below approximately 7 °C.

Rotary switch is not at

“Operation”.

–

Switch the heater on. If the heater is not in operation, the

drain valve can be reclosed only when the temperature is

approximately 7 °C or higher!

Turn the drain valve’s rotary switch to “Operation”, then press

the push button until it engages.

–

Water flows intermittently from the

FrostControl drain muff.

Water pressure too high.– Check pump pressure (max. 2.8 bar). If connected to a central

water supply (rural or urban connection), a pressure reducer

must be used, which will prevent pressures higher than

2.8 bar entering the boiler.

–

If these measures do not remove the failure, please contact the Truma Service Centre.

Trouble-shooting list

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Trumatic Combi 6 Manual

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