Labby

I believe that there is a door management control unit (central locking etc) under the dashboard on the right hand side which has a multi-plug which could be worth checking that it is pushed fully home. The control unit , which is linked to the BCM , should have a coloured data identity label on it. The fuse for this unit is F36 (20a) in the dash fuse box (bottom row , far left)

That Compass Drifter is a C class Motorhome .

Have a look at the items in the Sargent shop , the replacement kit shows both the 5x screws and 5 x ( threaded ? ) seals that are used to fit them .

The replacement kit for the water level sensor system used with an EC155 / B includes 5 x studs , so , as suggested by Keith , the other sensor studs may be causing the problem. If you are sure there is only two studs Sargent technical department may have other suggestions if you give them a ring.

The sensor used when you have a EC155 / B are studs that go through the side of the water tank and replacements can be found in the www.sargentltd.co.uk shop (water/waste sensors section , with the replacement studs shown at the bottom of the list) also if you look at the power systems section in the shop you will find the EC155 /B with links to its fitting instructions that show these water level sensors and their connections. Their support / help centre / knowledge base may also be useful for information.

The type of water / waste level sensors you have will depend on which model of Sargent PSU (ECxxx ? ) you have fitted in your Motorhome.

You could also try magnumvs.co.uk who may be able help with a replacement .

I have also got similar readings at the moment, with the sun out, through the solar controller doing its job, the leisure battery voltage should drop back a bit when it gets dark .

On my 2015 Peugeot (X290) the parking lamps are turned on by moving the ring on the lighting stalk to position O then to dipped or main beam headlamps but I do not know if the X250 series are the same.

The leisure battery to the EC155 cables should be brown/blue (positive) and white/orange (negative) , but If you go to the Sargent website and go to support / help centre / search articles / EC155B power control , the EC155 install information found there has the wiring information , including colours of the leisure ( and starter ) battery connections

They may have used the leisure battery power supply into the EC155 as a connection for the solar controller , to save having to run a separate cable all the way back to the leisure battery terminals from the controller.

Are you sure that the EC155 has a solar input connection that can be used instead of going direct to the leisure battery from the controller? (as some other Sargent PSU units have), it could be worth checking with Sargent Electrical 01482 678981 or check at www.sargentltd.co.uk support section.

It could be worth replacing the engine/gearbox to body earth cable (or adding another) which can look ok but have been known to have a fault (resistance ? ) causing odd electrical sensor faults

To add - Have you turned the control panel master switch on . as required , for the awning light switch to work.

There may be a fuse on 12v fuses section on the PDU marked control panel that you can remove and then refit. to try to reset the digital control panel , this may reset the awning light control.(if that is what is needed) Also are you sure that you replaced the wires in the same places as I think your light may be an led type which must be connected the correct way round to work .