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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE

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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
18 September 2005, 9:06 PM
gary
Joined 13 Mar 2002
2288 posts

Mike, the solenoid windings have a resistance of something like 22 ohms if you test this and find it has then the problem will most likely be on the control board or in the wiring to it. If it's showing nothing on the meter then it's dead but the solenoid is replaceable, however you will probably have to change the wiring loom that comes with it for your old one, the later loom being different.
And yes it will spark even if the gas valve does not open.

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
18 September 2005, 9:15 PM
gary
Joined 13 Mar 2002
2288 posts

Frank, the 'Caravelle' uses almost the same control system and working parts as the Cascade mk1 water heater, the only difference being the temperature sensor on the Cascade is in the water tank and with the room heater...it's on the control switch.
So to get you going the manual for the cascade will help as the fault finder will be the same apart from any reference to thermal fuses which the Caravelle does not have.
Thanks to Jase for finding the manuals which are here:
http://www.ukwebb.plus.com/cascade/

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
18 September 2005, 9:37 PM
gary
Joined 13 Mar 2002
2288 posts

Davy, thinking about your problem over the weekend I think we are being side tracked a little by the green staying on which is only part of the problem. The rest is if the green is lit then the burner module should fire up and if it don't then it should 'lock out' and the red join the green after about 10 seconds. To reset normally you switch off and back on!!.
From what you tell me the first problem must be the panel off/on switch but the second will be the control switch under the bunk and or the module itself.
Problems with this type control switch are only caused by late 91 to early 93 modules, the date of your module will be found in the bottom right corner of the front face of the burner under the word 'patented' and you get at this from outside behind the plastic flue cover and the alloy one beyond.
You say you want to replace your setup, well you can get everything you need by mail order from me but I tend only to supply what you need...no more no less.

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
19 September 2005, 8:30 AM
korky
Joined 18 Sep 2005
4 posts

Hi Gary and thank you for your help again.
First of all I am not 100% sure if it`s a gas only or both gas and electric, I think it`s just gas. Where would the element be, on the end of the water tank? If so I have not got one. I asked the woman I bought it off if she had had the water on before and she hadn`t. Having little or no experience in water or gas and living with this problem for over a week I thought the only way to solve it was to buy a one complete, and swap it over or find someone local (Sunderland) who could fix it, or sell the thing telling them about the problem. At present I am doing all three.
Thanks again Gary.
Davy

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
19 September 2005, 9:27 AM
gary
Joined 13 Mar 2002
2288 posts

Korky, Davy?
I wrote this to Korky last night and should have realised!!

Hi, I had not heard of this problem before last week and then two two come at once!!. Not quite a solution yet but the disscussion is on page 23/4 in ALL CARVER QUESTIONS etc.
Any 240 volts heating is on the inboard end of the water tank and is all covered with a white plastic box that sticks out of the insulation jacket.
I offer a complete overhaul service if that's what you need or I supply new or serviced exchange parts. You can search the word 'Carver' under 'Automotive' on Ebay to find Gas/Electric replacements, but as for three pin plugs etc, don't even think about it!!!

To answer your last question, the electric upgrade was once a kit you could buy and although the main parts are available the silly little plastic box that covers everything is not.
But what I always say is for the price of an electric upgrade you can buy an awful lot of gas!!



ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
19 September 2005, 6:27 PM
-  Edited by keith 19 September 2005, 6:31 PM
keith
Joined 7 Feb 2005
1386 posts

Andy the micro switch in the bathroom tap is u/s & needs replacing the reason it runs for 10 secs & then stops is because it is just using the water pressure already in the system, i.e the pump isnt really running then stopping, if u open another tap while leaving that one open it will start to run again.
Ive just told someone a couple of days ago, how to do it, so look back through the postings.
If u cant find it post again, but start a new thread, dont post it in this thread, as its not really about the tap side of things.
keith
P.s try page 2, cant get my taps to work without switching others on.


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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
19 September 2005, 6:58 PM
mike
Joined 17 Sep 2005
3 posts

Gary,

Thanks for the advice. This is all fine it was 32 ohms

On rechecking with a nail in the electromagnet housing, there is a charge being produced by the electromagnet operating the gas valve but it is only for a fraction of a second.

should this be enough to open the gas valve for a sustained period of time ?


ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
19 September 2005, 11:50 PM
gary
Joined 13 Mar 2002
2288 posts

Struggling Mike, this is a 'Trauma' not Carver so I don't know precisely how they work but the opening amperage required is higher than that to hold it open so once lit in general the amperage to the solenoid is cut though a resistor which will give a reading of something like 4 volts, this stops the windings overheating while held open for long periods.
Put another way the start cycle gives full amperage to the solenoid which will open it but once switched on there is a lower amperage though the resistor present which if it lights stays while the start cycle is 'suspended' and this is enough to hold the valve open.
It would help a bit if you said what model you have but if the control board has a ten pin and a six pin connector then you may fnd you can still get these from Truma UK in Burton on Trent, they may even be able to offer some of their 'own' advice

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
20 September 2005, 8:33 AM
mike
Joined 17 Sep 2005
3 posts

Gary,

You've given me some excellent advice on this problem and as you
say I am not even on the right forum!!

Many thanks,
Mike


ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
20 September 2005, 10:09 PM
TREVOR
Joined 20 Sep 2005
2 posts

New to caravans! Have recently purchased a van, 1987 Buccaneer 2 berth, fitted with a Caravelle 4 heater and Cascade 2 water heater. Problem is with the Cascade 2 - will not ignite, although ignition can be heard clicking. Gas supply is OK because all other appliances work fine. Any ideas?
Plus, is it still possible to obtain copies of instruction manuals for these units, and are spares still readily available?
Any info welcome..........

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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
21 September 2005, 0:18 AM
-  Edited by gary 21 September 2005, 0:25 AM
gary
Joined 13 Mar 2002
2288 posts

Trevor, basically you need a new 'burner module' for your water heater and this you can obtain from me as a serviced exchange unit.
Manuals for both you can download here: http://www.ukwebb.plus.com/cascade/
For the Caravelle follow the Cascade mk1 instructions as they are more or less the same in operation, the only real difference being the cascade warms water while the caravelle warms you!

P. S. and most important, the steel gas pipe from the caravelle to the main copper pipe supply system is prone to corrode and you should check that it is not pitted in anyway which will allow it to leak. If it is then again you can get a replacement from me


ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
27 September 2005, 7:10 PM
darren
Joined 27 Sep 2005
3 posts

Hi gary just bought a 1991 elldis voyager 1 motorhome with a cascade 2 has no t been used for 12 months lights no problem,
water is hot but exhaust is sooty and leaves marks on the side of the van any ideas thanks darren

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
27 September 2005, 8:57 PM
gary
Joined 13 Mar 2002
2288 posts

A nice simple one to answer, it's the burner itself causing the problem and should not be used in this condition.
The problem will be a blockage probably a spiders nest left over from the long layup, this will be in the inlet tube that runs though the centre of the burner or perhaps the burner ends are corroded and holed.
The solution depends on your abilities, you can clean out the inlet tube and then reassembly the module correctly afterwards if you feel confident to do this. If not and particularly if the burner needs replacing then you will need a complete serviced exchange burner module. Individual spares are not available, but if the burner looks in good condition you could always get someone competent in to do the cleaning.
As I said it must not be used like this as the smoke apart from the mess it is making, is a sure sign large amounts of carbon monoxide are being produced.

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
27 September 2005, 10:14 PM
TREVOR
Joined 20 Sep 2005
2 posts

Hi Gary,

Thanks for the advice. I'll take a look when I get a minute, hopefully at the weekend!

Regards, Trevor


ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
28 September 2005, 7:44 AM
darren
Joined 27 Sep 2005
3 posts

thanks for your help is the burner accessed from the outside cowl
Darren


ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
28 September 2005, 8:27 AM
darren
Joined 27 Sep 2005
3 posts

Hi Gary had alook at the gas burner lots of corrosion there are no ends to the burner at all, how do i remove it and how much and where can i get a replacement unit from and sorry where can i get a schematic of the unit by the way this unit has a temperatue control wheel do not know if that makes any difference to the unit required many thanks Darren (PS we all know what your specialist subject should be on MASTERMIND!!!!!!)

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
28 September 2005, 9:02 AM
gary
Joined 13 Mar 2002
2288 posts

Yes, remove the plastic flue cover and the flat aluminium plate behind that, this will expose the burner.
The burner is part of the 'burner module' and this is held by two cross head screws under the gas valve low down to the right.
Remember unscrewing these two screws is breaking the gas connection so of course the gas should be switched off
The gas seal itself is a rubber 'O' ring and requires no special knowledge to replace correctly, just make sure the two screws are not crossed threaded when put back and don't use any sort of sealing compound.
There is also a black foam weather seal on the bracket at the back of the burner, you should also make sure this bracket is lifted as high as it want to go before fully tightening the screws on replacment. This way the bracket will fit parallel to the recess in which it fits and ensure there is a good seal here.

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
28 September 2005, 9:19 AM
gary
Joined 13 Mar 2002
2288 posts

You can get a new burner module for around the £100 mark or serviced exchange from me for £63 including the postage and 6 months warranty from date fitted or first used.
Manuals you can find here http://www.ukwebb.plus.com/cascade/
and although it does not matter if fitted with temperature adjustment or not, it's important to state when ordering which connection yours uses to the control switch. Yours will be a 'din' plug, later ones used a flat four pin connection.
I send a module out on receipt of a cheque to Arc Systems so you will see clearly how to change it before you start, your old one then comes back in the same box.
Gary
http://www.arcsystems.biz

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
28 September 2005, 1:07 PM
Joe
Joined 28 Sep 2005
1 posts

My Carver Cascade NEVER works first off. It always demands half hour of trying and cancelling before starting. Looking inside I noticed the metal burner (rectangular metal air/gas mixer box with holes at the top where the gas flames come out) is severely corroded/rusted. Can anyone help in getting hold of a replacement? Is it complicated to replace?
Any help would be most welcome.

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
28 September 2005, 1:22 PM
gary
Joined 13 Mar 2002
2288 posts

Well Joe the same applies to you as the questioner above, the Burner module is a complete unit and only sold as such, the good news is it is straight forward to replace. All the rest of the facts I have given above will get you one from me.
Gary

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