No power on 240v to motorhome.

[LouiseandGeoff]

Can anyone help me. I have no power to my motorhome on 240volt but the power light is on for the fridge. Is there a trip reset button or anything to reboot it.
The motorhome is a 2016 chausson.
Many thanks for your help

 

[Phill D]

You will have a 250v consumer type unit somewhere with rcd’s. That’s first check.
The power light on the fridge are you sure it’s 240v supply? Is the fridge working on 240v?

 

[chaser]

Please don't take this the wrong way but believe me it's happened more than once, you are hooked up to the mains are you?

 

[LouiseandGeoff]

Yes I am mate

 

[LouiseandGeoff]

Oh ok I’ll look for that. Does the consumer unit have a trip on it or something then. Well I thought it was running off of 240 as 12v lights weren’t working so I thought t leisure battery was flat

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[bigwood]

The consumer unit in our coachbuild is in the wardrobe. The trips have been caught occasionally by loose items catching them.

 

[chaser]

Oh ok I’ll look for that. Does the consumer unit have a trip on it or something then. Well I thought it was running off of 240 as 12v lights weren’t working so I thought t leisure battery was flat

If the 240 is plugged in the 12 volt lights should work off the charger.

 

[Jez1966]

Is this a new issue?
You have been on hook-up previously and everything was OK?

 

[Phill D]

12v lights don’t need the mains plugged in, they are off the leisure battery via your charger / distribution unit. Look for a fuse blown as a start.

You said you had a power light at the fridge is the fridge working off mains?

Is anything else working on 12v? TV etc?

 

[gus-lopez]

If the 240 is plugged in the 12 volt lights should work off the charger.

My mate has it all turned off & wonders why when he plugs in it doesn't do anything?

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[chaser]

My mate has it all turned off & wonders why when he plugs in it doesn't do anything?

Surprisingly it's very common for new owners to expect the 240 to work without hooking up as when they have been to a dealers and looked at these vans are all working but no one tells them they have to be plugged in to the mains for it to work.
Possibly in the ops case the fridge could be working off the starter battery even though the leisure battery is flat as the 240 isn't working to charge it.

 

[Jez1966]

Unless OP posts feedback/more details we're clutching at straws.
OP a member since 28th Nov 2023 so possible limited experience.
There are 100's of potential reasons for the issue fault or operation.
Could be simple as RCD OFF at hookup post.
Swift requires Command Panel to be on for any 12v to work.

 

[Fdhadi]

Could the fridge be working on gas?

 

[pappajohn]

When you find the fusebox make sure all the switches are UP.
If they are check the switch at the hookup post.
If that's up you have an onboard problem which could be difficult to diagnose from the forum and will need a multimeter.

 

[autorouter]

The consumer unit is the first thing that the inlet socket is connected to. It should have some trip switches similar to the ones in your house. It should have one trip switch with a small 'Test' button on it, and one or two other trip switches that don't have a 'Test' button.

The switch with the test button on it is called an RCD. The others are called MCBs

If the RCD is ON (ie UP) then if you press the Test button on the RCD, the switch should trip. That shows that the 240V mains is getting as far as the RCD. If it won't stay on when you switch it on, then there is a problem on the motorhome side of the RCD. If it trips when the test button is pressed, and stays on when switched on again, then the 240V mains supply is OK as far as the RCD at least.

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[TerryL]

I once had "an auto electrician " spend 3 days trying to find why half my 240v system wasn't working.
Was a connector plug that had obviously been caught in one of the lockers and was loose just enough......

 

[Al n Val]

If the 240 is plugged in the 12 volt lights should work off the charger.

nope

the charger is the battery charger and nothing to do with supplying 12v to the lights which are fed from the hab battery

 

[LouiseandGeoff]

All sorted now thank you it was a knackered leisure battery just replaced it and all good.
Big thank you for all your replies

 

[autorouter]

All sorted now thank you it was a knackered leisure battery just replaced it and all good.
Big thank you for all your replies

Hopefully that's the problem solved. But keep an eye the battery in case there was a problem with something else, which affected the leisure battery and caused it to fail. You don't want to be forking out for another new battery.

 

[Jez1966]

All sorted now thank you it was a knackered leisure battery just replaced it and all good.
Big thank you for all your replies

Glad your back up and running.
Out of interest do Chausson models not have a "control panel" that shows battery condition?
Not that it would help you, Swift Command has both vehicle & leisure battery voltage reading & you can switch
between them to test if things work off vehicle if nothing on leisure.
That said the Swift Command is a disaster waiting to happen, tough screen, needs software updates and £800 to replace when it fails. Other than remote valves grey and fresh water dump, that you can't open if it fails, it does nothing you can't do with a switch inside the van. Swift Command is seriously over complicating the simple and as Richard Branson says any idiot can do that, simplify the complicated take skill.
Would be far simpler, less chance of failure with £0.50 toggle switches as I see on most US motorhome, including $1,000,000 ones.

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[LouiseandGeoff]

Yes there is a battery indicator on the control board but that was completely flat to. I will be getting it looked into on our return from cheddar Gorge

 

[bigtwin]

nope

the charger is the battery charger and nothing to do with supplying 12v to the lights which are fed from the hab battery

nope

the loads (lights), battery and battery charger are all electrically connected. You can remove the battery and the charger will supply all connected loads (up to the current delivery capability of the charger).

Ian

 

[chaser]

nope

the loads (lights), battery and battery charger are all electrically connected. You can remove the battery and the charger will supply all connected loads (up to the current delivery capability of the charger).

Ian

Yes that is what I meant but didn't want to argue.

 

[autorouter]

You can remove the battery and the charger will supply all connected loads (up to the current delivery capability of the charger).

Depends on the charger - some will, some won't. A lot of them need a battery connected before they will produce any output. Some say they have a power supply mode that works without a battery, and some will do that but not say they can.

 

[Al n Val]

nope

the loads (lights), battery and battery charger are all electrically connected. You can remove the battery and the charger will supply all connected loads (up to the current delivery capability of the charger).

Ian

Only if you leave all the connections to the charger and then only if the charger recognises there is no battery in circuit and passes an output as autorouter has indicated

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[bigtwin]

Only if you leave all the connections to the charger and then only if the charger recognises there is no battery in circuit and passes an output as autorouter has indicated

Indeed, so not as you suggested!

the charger is the battery charger and nothing to do with supplying 12v

Ian

 

[TheBig1]

older vans generally had dumb chargers that put out a single 13.8volts that charged the battery or acted as a simple power source. Modern smart chargers need feedback from the battery to determine the charge and what it requires to maintain it. No battery connected and the charger switches off for safety

 

[Al n Val]

Indeed, so not as you suggested!

Ian

it wasn’t me who suggested it

“If the 240 is plugged in the 12 volt lights should work off the charger.”

only if the 12v circuit is connected to the charger, if not nothing on the 12v side will work

I’m not trying to be pedantic here btw just getting facts in the correct order

 

[bigtwin]

only if the 12v circuit is connected to the charger, if not nothing on the 12v side will work

In the context of this thread, why would they not be?

Your comment said:

the charger is the battery charger and nothing to do with supplying 12v to the lights

Ian

 

[Buddy1012]

You will have a 250v consumer type unit somewhere with rcd’s. That’s first check.
The power light on the fridge are you sure it’s 240v supply? Is the fridge working on 240v?

Can anyone help me. I have no power to my motorhome on 240volt but the power light is on for the fridge. Is there a trip reset button or anything to reboot it.
The motorhome is a 2016 chausson.
Many thanks for your help

Had a similar issue a few weeks ago - took me ages to track down after looking at all the obvious possibilities. Eventually tracked it down to the inverter as my 230v passes through the inverter as part of the 'priority circuit' set-up. We had inadvertently exceeded its limit when using air fryer, microwave etc when on hook-up - simple reset and all worked fine thereafter.