Swift Motorhome Owners Service Manual page 117

TR U MA C OM BI 4E/6E
Maintenance
Only original Truma parts may be used for
maintenance and repair work! Materials in the
device which come into contact with water
are suitable for use with drinking water (see
manufacturer's declaration: www.truma.com /
downloads / manufacturer's declaration).
Bio-film, deposits and limescale must be
removed using chemicals to protect the unit
from infestation by microorganisms.
Only chloride-free products must be used in
order to prevent damage to the unit.
The effectiveness of the use of chemicals to
combat microorganisms in the unit can be
increased by heating the water in the boiler to
70 °C at regular intervals.
The unit must stay switched on for at least 30
minutes and no warm water may be removed.
The residual heat in the heat exchanger will
heat the water up to 70 °C.
Fuses 12 V
The fuse is in the electronics beneath the
connection cover.
Replace the unit's fuse only with an
identical fuse.
Device fuse: 10 A – slow – (T 10 A)
116
Fuses 230 V
The fuse and the power supply lines must only
be replaced by an expert!
The unit must be disconnected from the mains
(all poles) before opening the electronic
housing lid.
The fuse is in the power electronics (16)
beneath the electronic housing lid.
This fine fuse must always be replaced with a
fuse of the same type: 10 A, slow, interrupting
capacity "H".
Overheating protection 230 V
The 230 V heating facility has a mechanical
overheating switch. If the 12 V power supply
is interrupted during operation or during the
after-run period, for example, the temperatures
within the unit could activate the overheating
protection.
To reset the overheating protection, allow
heater to cool, remove connection cover and
press red reset button.