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TRUMA COMBI 4E/6E BOILER
TROUBLESHOOTING
Troubleshooting FITTED EQUIPMENT
Fault Cause Rectification
After switching on - No operating voltage. - C heck 12 V battery voltage,
(winter and summer charge if necessary.
operation) none - D evice fuse or vehicle
of the controls are fuse defective. - Check all electrical plug connections.
operational.
- Check the unit or vehicle fuse and
replace if necessary
(see fuses).
The unit is switched - The temperature setting - Select higher room temperature at the
on, but the heater on the control panel is control panel.
does not operate. lower than the room
temperature.
After operating for a - Summer operation with - S witch device off and allow to cool.
longer period of time, empty Fill boiler with water.
the heater switches water tank.
to failure. - Check individual outlet apertures.
- Hot-air outlets blocked.
- R ecirculated air intake - R emove blockage from recirculated
blocked. air intake.
- G as pressure regulator - U se regulator heating (EisEx).
iced up
- U se propane (at temperatures below 10
- Butane content in the gas °C in particular, butane is unsuitable for
cylinder heating purposes).
too high.
Fan continues to - Unit was switched off - After-running will switch off after a few
run after controls during failure. After- minutes. Only at that time will a failure
switched off running is active in order reset be possible (switch off and then
to reduce the unit’s back on).
temperature.
- After-running is active in - No failure. After-running will switch off
order to reduce the unit’s after approximately 5 minutes.
temperature.
When the device - No 230 V operating - Check 230 V operating voltage, and
is switched on in voltage. settings on power supply unit
electrical operation, (EC400/ES600)
the heater does not - 230 V fuse defective.
heat up. - C heck 230 V fuse and replace if
- Overheating protection necessary.
has activated
- Reset overheating protection. Allow
heater to cool, remove connection
cover and press reset button.
If these measures do not remove
the failure, please contact the Truma
Service Centre.
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