8
Overheating protection 240 V
The 240 V heating facility has a mechanical overheating
switch. If the 12 V power supply is interrupted during opera-
tion or during the after-run period, for example, the tempera-
tures within the unit could activate the overheating protection.
Fig. 7
To reset the overheating protection, allow heater to cool,
remove connection cover and press red reset button.
Faults
Faults – Heater
Descriptions of possible fault causes and a troubleshoot-
ing guide can be found in the operating instructions for the
control panel that is installed.
Faults – Water supply
Possible fault causes and a troubleshooting guide – See
“Troubleshooting guide (water supply)”.
Troubleshooting guide (water supply)
Fault Cause / Remedy
Water taking an extremely
long time to heat up.
Water container furred./
Descale water system
(see“Maintenance”).
Water running out, cannot fill
hot water system.
Drain valve open. / Close drain
valve.
Cannot empty hot water sys-
tem, even though drain valve
is open.
Drain valve draining con-
nection blocked. / Inspect
opening for blockages (slush,
ice, leaves, etc.) and remove
blockage if necessary.
Water dripping/flowing from
draining socket of drain
valve.
Water pressure too high. /
Check pump pressure (max.
280kPa). If connected to a
central water supply (rural or
urban connection), a pressure
reducer must be used, which
will prevent pressures higher
than 280 kPa entering the hot
water system.
When opening the cold wa-
ter tap, hot water comes out.
Hot water flows back through
the cold water supply. / Fit a
non-return valve in the cold
water supply (refer to instal-
lation instructions “Water
connection”).
If these measures do not rectify the fault, please
contact the nearest Dometic Service Centre.
Disposal
The device must be disposed of in line with the administrative
regulations of the respective country in which it is used. Na-
tional regulations and laws must be observed.
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