Auto-Sleepers Symbol Plus 2018, Manual

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9-16
FITTED EQUIPMENT
Overheating protection 230V
The 230V heating facility has a mechanical
overheating switch. If the 12V 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.
WATER TANK HEATERS
If specified, electrically heated,
thermostatically controlled, water tank heater
blankets are fitted to enable operation of your
vehicle in cold conditions.
Operation
• Make sure that the tank heaters are
only selected when there is liquid in
the tanks.
• Press the defrost button on the control
panel when you know the ambient
temperature will approach freezing. The
LED will indicate that there is power to
the circuit.
• If there is no liquid in the waste tank, the
heater for it must be turned off using the
isolation switch, ensuring that the LED is
NOT lit. For exact location of the switch
refer to the Location of Key Facilities
chart.
• When the temperature in the tank drops
to approximately 7
°
C the thermostat will
turn the heating element ‘ON’.
• When the contents of the tank rise to
18
°
C the thermostat will turn the system
‘OFF’.
• Turn the control panel switch ‘OFF’ when
draining fluid, connecting electrical hook
up or starting a generator. This will
prevent damage to the built-in
thermostat.
• Turn the control panel switch ‘OFF’ when
the ambient temperature remains above
freezing.
Maintenance
Periodically conduct a visual check of the
system to ensure cables, connections and
the heater pads are as installed and have not
been damaged or become disconnected.