EC400 / EC450 series Power Control System
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Issue 1
Page 10 of 13
12
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June 2011
These warnings will not be repeated unless the water pump power switch is turned off and on again.
This is to ensure the warning does not become a nuisance.
3.9 Frost Protection
On vehicles fitted with water tank frost protection, the control panel frost protect switch can be used to
turn the feature on or off.
With protection on, the system monitors the tank water temperature and water level and will control the
tank heaters accordingly. If the fresh or waste water levels are less than 25% the appropriate heater
will be turned off to prevent overheating or damage to the element.
There are two types of system employed, both working in a very similar way. One system uses
heaters with built-in thermostats; the other uses separate temperature probes in the tank. Both types
switch on at 4-5C and off at 8-10C
3.10 Electric Step Operation
On vehicles fitted with an electric step, this is operated by a button near the entry door. Press and
release the button to move the step in or out. One press of the button will move the step out, a further
press will move the step in again.
If the engine is started the step will move in automatically, after a short warning buzzer. If this
operation fails due to an obstacle a buzzer will sound continuously to warn that the step is still out, and
therefore requires your attention.
3.11 Warnings and Alerts
If the vehicle engine is started whilst the caravan or motorhome is connected to the 230v supply, a
warning beep will be heard. This is to warn you to remove the 230v supply before driving away.
When the vehicle engine is running both the vehicle battery and the leisure battery LED’s will flash in
unison to indicate that they are connected together and are being charged by the vehicle.
Step operation (motorhomes only), if the engine is started with the step in the out position, the step will
move in automatically, after a short warning buzzer. If this operation fails due to an obstacle a buzzer
will sound continuously to warn that the step is still out, and therefore requires your attention.
Low water level and waste tank, if the fresh water level drops to below 25% a warning beep will be
heard and the fresh gauge empty LED will flash. To cancel the warning, press the levels button. If the
waste water level rises to full (100%) a warning beep will be heard and the waste gauge full LED will
flash. To cancel the warning, press the levels button.
Low voltage warning and cut off, if the power is turned on and the leisure battery level falls below 9V a
warning beep will be heard and the leisure battery gauge 10V LED will flash. To cancel the warning,
press the levels button. If the power is turned on and the vehicle battery is selected (being used) and
the level falls below 10.9V a warning beep will be heard and the vehicle battery gauge 10V LED will
flash. To cancel the warning, press the levels button.
3.12 Common Fault Table
Fault
Possible Cause
Proposed Fix
Connecting lead between
the site and Leisure
Vehicle not connected
Check and connect lead as per 2.4C
RCD switched off
Reset RCD as per 2.4D
RCD not operating
correctly
Check supply polarity; if the RCD continues to fail contact your Dealer
as there is probably an equipment or wiring fault.
MCB switched off
Reset MCB by switching OFF (down position) then back ON (up
position), if the MCB continues to fail contact your Dealer as there is
probably an equipment or wiring fault.
No or deficient supply
from site
Contact site Warden for assistance
No 230 volt
output from PSU
Other fault
Contact your Dealer
