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www.auto-trail.co.uk
Electrical Services
All Auto-Trail vehicles have both a 12V and
230V electrical system.
The 12V electrical system is supplied by a
rechargeable leisure battery that is located in
a dedicated battery compartment within the
vehicle (locations of leisure batteries varies
from model to model so please familiarise
yourself with your battery location prior to
using the vehicle for the first time).
The leisure battery is charged either by the
vehicle alternator when the engine is running,
or by the on board battery charger when the
vehicle is connected to a suitable mains supply
via the hook-up lead supplied with the vehicle.
Connection the mains supply also activates the
230V sockets and 230V lights (where fitted to
a vehicle), as well as various mains appliances.
All Auto-Trail vehicles utilise a combined power
supply unit (PSU) that contains the battery
charger, 12V fuses, mains RCD (residual circuit
breaker) and MCB’s (miniature circuit breakers).
Please familiarise yourself with the location of
the PSU unit prior to using the vehicle for the
first time (individual specifications of PSU
units will be described in more detail later in
this section).
Connecting The Vehicle To A Mains Supply
Your Auto-Trail vehicle is supplied with an
orange mains hook-up cable that will connect
your Motorhome to a suitable power supply
on site via the mains hook-up point on
your Motorhome.
Mains hook-up points vary from model to model
so please familiarise yourself with your particular
location prior to using your vehicle for the
first time.
Your Motorhome should only be connected to a
supply that meets the requirements of BS7671.
The site warden will hold information regarding
the suitability of supply.
• Locate the charger power switch on the PSU
unit and switch to the ‘OFF’ position before
connecting the mains supply.
• Connect the supplied hook-up cable (orange
cable with blue connectors) to the Motorhome
and then connect to the mains supply.
• Check the RCD operation by ensuring that the
RCD is switched ‘ON’ (lever in up position).
Press the ‘TEST’ button and confirm that the
RCD is turned off (lever in ‘DOWN’ position).
• Switch the RCD back into the ‘ON’ position
(lever in ‘UP’ position). If the button failed to
operate the RCD seek professional advice
from a qualified electrician.
• Check the polarity of the mains supply by
locating the Reverse Polarity indicator and
ensure that the indicator is not illuminated.
If the indicator is illuminated seek advice
from a professional electrician.
• Locate the MCB’s within the PSU (adjacent
to the RCD) and ensure they are all in the
‘ON/UP’ position. If any MCB’s cannot be
reset this could indicate a fault or an
overloaded circuit.
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