EC400 / EC450 series Power Control System
E
C
45
0
Issue 1
Page 11 of 13
12
th
June 2011
Fault
Possible Cause
Proposed Fix
Mains Supply reversed?
The reverse polarity light is designed to illuminate when the Live and
Neutral supply has been reversed / crossed over. If the light
illuminates there is a problem with the site supply or the cable
connecting the supply to your vehicle. The light is designed to work
on UK electrical supplies (where the neutral conductor is connected
to earth at the sub station). If you are using your vehicle outside the
UK this light may illuminate when no fault exists. In these cases
consult the site warden for advice.
Reverse Polarity
light is
illuminated on
PSU
Generator being used
‘The Reverse Polarity warning light is on when using my Generator’.
This is a normal side effect when using some types of generator.
Instead of connecting the neutral conductor to earth, some generators
centre tap the earth connection making both neutral and live
conductors 110v above earth. This 110v difference causes the neon
polarity indicator to illuminate. In most cases it is still safe to use the
generator, but please consult the generator handbook for further
information.
Control Panel has no
display
Check batteries and fuses, turn PSU shutdown switch and charger
switch on and ensure mains supply is connected.
Check control panel connecting lead at PSU and behind Control
Panel
Contact your Dealer
12v Power turns off
Battery protect feature has operated to protect the Vehicle battery
and or the Leisure battery. See 3.4C
Engine has been started, all equipment has been disconnected to
meet EMC requirements. See 2.7
Control Panel
Problems
Control Panel locked /
erratic function
Observe control panel handling instructions
Control panel software may have crashed. Reboot control panel by
turning off the PSU isolate switch. Wait 30 seconds then turn the
switch back on.
No 230v supply
Check all above
Charger not switched on
Turn charger switch on, switch will illuminate
Battery not connected and
/ or charged
Install charged battery as per 3.4
Power button on control
panel not switched to on
Turn power on at control panel
Battery flat / Battery fuse
blown
Recharge battery, check fuses, check charging voltage is present at
battery
Fuse blown
Check all fuses are intact and the correct value fuse is installed as
per fuse table
Equipment switched off /
unplugged
Check equipment is switched on and connected to the 12v supply
PSU overheated / auto
shutdown operated
Reduce load on system. Allow PSU to cool down. PSU will
automatically restart when cool.
No 12 volt output
from PSU
Other fault
Contact your Dealer
Fuse blown
Replace fuse with correct value as per fuse table.
Pump turned off
Turn pump on by pressing the pump button at the control panel.
Pump not
working
Setting incorrect
Both the internal and external pump feeds are controlled from the
control panel. To alter the setting of the pump switch see section 3.8
Ensure the setting matches your desired requirement.
3.13 Contact details
Sargent Electrical Services Limited, provide a technical help line during office hours. Please contact
01482 678981 if you require technical help. For out of hour support please refer to the tech support
section of the Sargent web site
www.sargentltd.co.uk
