Swift Motorhome Owners Service Manual page 119

T R U M A COMB I FAU LTS
Troubleshooting
Fault
After switching on
(winter and summer
operation) none
of the controls are
operational.
The unit is switched
on, but the heater
does not operate.
After operating for a
longer period of time,
the heater switches
to failure.
Fan continues to
run after controls
switched off
When the device
is switched on in
electrical operation,
the heater does not
heat up.
If these measures do not remove
the failure, please contact the Truma
Service Centre.
118
Cause
- No operating voltage.
- Device fuse or vehicle
fuse defective.
- The temperature setting
on the control panel is
lower than the room
temperature.
- 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.
- 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.
- No 230 V operating
voltage.
- 230 V fuse defective.
- Overheating protection
has activated
Rectification
- 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).
- Select higher room temperature at the
control panel.
- 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).
- 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.
- Check 230 V operating voltage.
- Check 230 V fuse and replace if
necessary.
- Reset overheating protection. Allow
heater to cool, remove connection
cover and press reset button.