My E + P jacks will not deploy (1 Viewer)

[DavidG58]

I think the problem might now be something more fundamental. I had checked battery volts yesterday when we had the problem and all looked good at 12.6V but this morning we only have 11.9 . Even more pleased they didn't go down or they would surely be stuck down. What is extra confusing is when the engine is still running there is no charge going to the hab batteries where normally there is

 

[Lenny HB]

I think the problem might now be something more fundamental. I had checked battery volts yesterday when we had the problem and all looked good at 12.6V but this morning we only have 11.9 . Even more pleased they didn't go down or they would surely be stuck down. What is extra confusing is when the engine is still running there is no charge going to the hab batteries where normally there is

I thought the jacks were always wired to the engine battery as they only operate with the engine running can't see any logic in wiring to Leisure battery.

 

[Neilfg]

David, sorry to hear about your issues but things had been going far too smoothly by all accounts, as you say at least not stuck down. Bear in there is a warning light for when there is insufficient or no vehicle battery voltage, the indicator LED ‘’LOW VOLTAGE’’ (no.2) lights up on both remote and control panel. Those voltages do seem a bit odd.

Anyway, is the place you are staying nice?

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[Speve]

Ours are wired to vehicle battery and I always deploy and retract with engine running although the will work without.

 

[DavidG58]

I reckon ours will be standard wiring by SAP just a coincidence that we now have a hab battery issue as well.

 

[Robert Clark]

Ours were wired to the engine battery also.

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[chaser]

This is one of the times when you are glad you have no electrical or hydraulic labour saving gubbins in your van

 

[DavidG58]

I might need a new thread for this part of the query, which I actually think are a total coincidence

What makes or allows the had battery to charge when the engine is running? ours always did, but doesn't now

driven all day with no input, although when parked in the sun the battery quickly recovered to 12.5+ but dropped quickly when used

new hab battery is almost certainly needed, if you recall we had 2 bought new when we bought this new to us MH in 2013, so now 4 years old, one had failed and was disconnected and removed while we were at VanBitz in Feb on our way to France, we have coped well with one battery all year, but will be getting new batteries fitted as part of this investigation / repair

 

[lunarman]

Is there a fuse between the habitation battery and the alternator (via split charge relays) that has blown?

Or disconnection of d+ signal wire not operating relays. (does jack system monitor d+ to tell if engine is running?)

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[Lenny HB]

A split charge relay internal in the Elektroblock takes care of charging when the engine is running. Don't know what model your EBL is but some of the older ones had a system what acted like a BtoB.
There are normally fuses at the back of the EBL and by the starter battery check these before getting too panicy.

 

[icantremember]

Even more pleased they didn't go down or they would surely be stuck down.

I'm sorry you are having a problem David, but just out interest, is there no way of manually retracting the jacks should you get a failure when extended?

 

[Speve]

I'm sorry you are having a problem David, but just out interest, is there no way of manually retracting the jacks should you get a failure when extended?

Yes you can do it manually but it's a bit of a pain however apparently there is a way changing over a couple of wires but never tried it.

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[DavidG58]

Is there a fuse between the habitation battery and the alternator (via split charge relays) that has blown?

Or disconnection of d+ signal wire not operating relays. (does jack system monitor d+ to tell if engine is running?)

If I translated this to Mandarin I would have as much chance of understanding what it means as I do just reading it, I really am technically inept, luckily in business I have been quite successful so can afford to pay for solutions, my next issue though is finding a competent firm to give my money to

 

[DavidG58]

A split charge relay internal in the Elektroblock takes care of charging when the engine is running. Don't know what model your EBL is but some of the older ones had a system what acted like a BtoB.
There are normally fuses at the back of the EBL and by the starter battery check these before getting too panicy.

thanks Lenny, I seem to recall from an earlier issue we had that our EBL is something never ever fitted to any Hymer before it was a demo for a few years and I wonder if either things failed or just got borrowed over the years

not panicking yet, just concerned about who to trust to sort it, part of is pretty much convinced it will be a simple fuse or reset needed, just I have no idea where to start, I will post a photo of the EBL tomorrow to get things started

I am now fairly sure the E + P is an unrelated but one of those frustrating coincidences

 

[funflair]

Hi @DavidG58 does the fridge work on 12v when driving?

Martin

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[DavidG58]

Hi @DavidG58 does the fridge work on 12v when driving?

Martin

no idea Martin, never even think to look, but will check that out tomorrow

I am presuming that by work you simply mean the symbol is lit? the fridge will already be cold from hook up

 

[lunarman]

If I translated this to Mandarin I would have as much chance of understanding what it means as I do just reading it, I really am technically inept, luckily in business I have been quite successful so can afford to pay for solutions, my next issue though is finding a competent firm to give my money to

住宅電池和交流發電機之間是否有熔斷器（通過分流充電繼電器）已經熔斷？

或斷開d +信號線不工作的繼電器。 （有沒有jack系統監視器d +來判斷引擎是否正在運行？）

Hope this helps

 

[funflair]

no idea Martin, never even think to look, but will check that out tomorrow

I am presuming that by work you simply mean the symbol is lit? the fridge will already be cold from hook up

Yes 12v symbol lit up when switched to "auto" will at least tell you that the signal from the alternator to say that its working is OK (thats your D+)

EDIT
Should add that its quite possible that the jacks need to see the D+ signal to know that the engine is running.

Martin

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[Clarky]

L

Yes 12v symbol lit up when switched to "auto" will at least tell you that the signal from the alternator to say that its working is OK (thats your D+)

EDIT
Should add that its quite possible that the jacks need to see the D+ signal to know that the engine is running.

Martin

Our E&P jacks will deploy with just the 'ignition' switch on but no engine running.

Richard.

 

[funflair]

L

Our E&P jacks will deploy with just the 'ignition' switch on but no engine running.

Richard.

Ours and Davids may well be the same but not able to check ours at the moment, but thought it was a worthwhile check considering the hab battery doesn't seem to be charging either.

Martin

 

[Speve]

I'm the EP will be a simple solution hope you get it sorted soon I would be lost without ours now.
Good luck

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[DavidG58]

good morning technical support team and other casual followers / interested parties

just been out to MH to try what even I can cope with easily, first off checked the voltages immediately after disconnecting hook up, 13.4V hab 13.0 cab

started engine, then checked for a light beside the battery selector on the fridge, as brilliantly suggested by Martin , I can still easily cope with this degree of technical, so far at least , the fridge is as always set to auto, and the battery icon is lit bugger this is going to get complex

just then thought I heard the noise all E + P owners will know, the legs or at least the pump doing a very brief burst of whatever it is they do, the same one we get about 15 seconds after retracting, a rather reassuring event to confirm all is up and ready to move , so that noise meant the legs were not dead at least

then I rechecked the controller for voltages with engine running still, now got 13.8V and 6A's going into hab battery

the good bit is the power of funster support seems to have healed my too clever for its own good MH , the bad bit is I have no idea why yesterday it didn't and cant help reminding my self that had the legs been down, apart from a long exercise with an alun key, we might still be parked in Manchester

I had started and stopped the engine quite a few times yesterday trying to check different things, another difference we noted was that yesterday our step out warning buzzer wasn't buzzing, it is manual retract, but with the new 360 camera it is now quite obvious if left out. That buzzer was working as soon as I started the engine today, masked by also having the door open which generates the same alarm, but when I closed door confirmed the step alert was working again

I am pleased and confused in equal measures, better off than I feared I might be and Mick at SAP has been saved from another of the daft calls he probably gets far too regularly

 

[Lenny HB]

I'm thinking have you got an intermittent problem with your alternator. The step buzzer is controlled from the alternator D terminal via a Schaudt relay box, and if the jacks only work with the engine running I suspect there control is triggered from the alternator D terminal.

 

[DavidG58]

@Lenny HB thanks for above, I guess it might be the relay, the wire or the alternator?

engine side seems to be fine, but no doubt the whole alternator has to go if this D terminal fails

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[Lenny HB]

If it is the alternator you should be able to get it rebuilt at a reasonable cost.
Good luck, you need it with your van.

 

[Speve]

Glad to hear you are sorted and as you say that last blip of the EPs is very reassuring.

 

[Lenny HB]

thanks Lenny, I seem to recall from an earlier issue we had that our EBL is something never ever fitted to any Hymer before it was a demo for a few years and I wonder if either things failed or just got borrowed over the years

not panicking yet, just concerned about who to trust to sort it, part of is pretty much convinced it will be a simple fuse or reset needed, just I have no idea where to start, I will post a photo of the EBL tomorrow to get things started

I am now fairly sure the E + P is an unrelated but one of those frustrating coincidences

Thinking back to the other thread don't you have the only Hymer in the world with a Reich system rather than an Elektroblock.

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[sallylillian]

Just for information, my factory fitted E&P system, is wired to the hab battery which surprised Mick but does mean that you do not need the ignition on to operate. There is quite a big draw from the system.
I have had several issues of the system locking up and a quick disconnect of the grey connector has cleared it.

 

[DavidG58]

Thinking back to the other thread don't you have the only Hymer in the world with a Reich system rather than an Elektroblock.

yep, that will be my Hymer

 

[Lenny HB]

yep, that will be my Hymer

Oh dear no hope.

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