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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
22 July 2008, 1:07 PM
gary
Joined 13 Mar 2002
1871 posts

Sorry Dave forget that,
the trick is with regard to yet another question and their starting to get blurred around the edges!!


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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
22 July 2008, 4:31 PM
POINTY
Joined 21 Jul 2008
6 posts

O.K I have good news...I found a local caravan repairer in Stafford in fact just down the road from me so took the van in for a quote before using Garys contacts (thanks Gary)The main man at Stafford Caravan Services Limited is Roy and he very kindly gained access to the boiler told me to prime it and see where the water was coming from..we found it was from the back end near the reset switch immersion heater cowling.

On finding that Roy removed the heater from the van stripped it down and found the seal behind the immersion heater had broken..he soon had me cleaning up the surface with wire wool so a new seal could be fitted.. I then cleaned off the outside cowling and side of the motorhome so we could re seal the cowling in place..Roy fitted the heater back in place and recoupled all the pipework..we then retraced all the wiring and found that the fuseable switch marked mains fridge was actually the immersion heater, so the heater had been running on both electric and gas!! I would not have noticed though unless that seal had gone so luckily all has been repaired..and because I did the dirty work myself it only cost me £50.. after an hour there I now have a fully working system...I highly recommend anyone local to Stafford to use Stafford Caravan Services Limited
Unit 9 Carver Business Park
Astonfields
Stafford
ST16 3HR
TEL 01785 257233

and thanks Gary for all your help

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
22 July 2008, 6:51 PM
billander
Joined 12 Aug 2007
29 posts

Hi Gary, Have just been away for another three weeks and i could only get hot water with the gas. I know there should be a switch somewhere near the heater for the electric but i just cant find it. Are you still getting the north easterly at Skeggy? Thanks BILL

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
23 July 2008, 5:23 PM
mhairi
Joined 9 Jul 2008
7 posts

looking for a carver cascade 2 water heater switch which i have been told are no longer made, its the brown switch that is attached to the wall switch to turn it on and off
many thanks

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
23 July 2008, 6:57 PM
gary
Joined 13 Mar 2002
1871 posts

Hello Bill, I've had a word with George and he tells me the electric heating switch is about mid way along the front of your off side bed box. It should have a red light to show it's switched on.

Weathers been nice at Skeg thanks, we are there most weekends


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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
23 July 2008, 7:00 PM
gary
Joined 13 Mar 2002
1871 posts

mhairi, If you have a switch I can fix it no problem, I have a few brand new switches but no fancy on/off switch covers, work perfectly well though.


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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
23 July 2008, 9:30 PM
billander
Joined 12 Aug 2007
29 posts

Hi Gary, thanks for getting the info from george.I was expecting some crack about a tight Jock but why waste gas if you can use the electric that you have paid for. Just for anyones infomation if they are looking for sillicone grease you can get it from MAPLIN for under a fiver. Thanks again Gary. BILL

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
23 July 2008, 9:31 PM
sab
Joined 23 Jul 2008
3 posts

just purchased lunar meteor1995 this has carver cascade 2 water heater.
i have the usual problem of no water coming through hot water taps.
tried the suggestions ie draining and refilling with hot taps open but to no joy
i then removed the white connector into heat exchanger the bottom one with blue hose there was just a hole no valve. i eventually found the small torpedo shaped valve loose in blue hose but cannot work out how to fit and wonder if there are more bits floating around. this valve isabout 10 mm long with an O ring near one end and a small compression spring the other end.any way i refitted the connector less valve unit and hey presto all taps work perfectly BUT when i disconnected pump connector from external inlet on caravan water flows out can any one help please do i need a new connector /valve unit many thanks

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
23 July 2008, 11:27 PM
gary
Joined 13 Mar 2002
1871 posts

Sab, it's a black plastic connection then? plunger with spring in front drops into fitting from hose end, with a screwdriver compress spring so tip of plunger pokes though threaded end of fitting and put 'O' ring on tip.

If you understand that then you've done it?!

And Bill I'd never call Jocks tight, that surely goes without saying LOL


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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
24 July 2008, 12:25 PM
sab
Joined 23 Jul 2008
3 posts

many thanks but i have just rechecked connector and it is off white in colour as is the valve piece definatley not black but will try your suggestion and see what happens and let you know

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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
24 July 2008, 4:13 PM
gary
Joined 13 Mar 2002
1871 posts

In which case the spring first into the white body followed by the plunger with white 'o' ring in place on it's shoulder and facing hose end, the hose connewtor then screws on and holds it all in place.


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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
24 July 2008, 5:40 PM
sab
Joined 23 Jul 2008
3 posts

thanks assembled as per first suggestion and all is well everything working fine
very many thanks for your help
simon

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
27 July 2008, 1:03 PM
dave
Joined 27 Jul 2008
1 posts

Hi Richard,
We have Fleetwood with a cascade 2 but we have no manual.
I have a problem with the hot water comming out whin the hot
tap is turned on.Please if you whould e-mail me the manual
it whould help alot thanks
[Log in to view email]
Dave

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
28 July 2008, 4:57 PM
-  Edited by barney 28 July 2008, 5:57 PM
barney
Joined 28 Jul 2008
6 posts

Hi,
my cascade 2 seems to work fine on 240v but although my green light comes on the controller the gas don't seem to ignite when using gas. Fuses in control unit are ok. Gas is getting to the unit and I've moved the stat and still no go. Do you have any suggestions? and do we know any good fitters in the Bristol area. There appears to be a very good one in the Nottingham area(creep arn't I) but that's a bit too far away.

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
28 July 2008, 8:26 PM
deb
Joined 27 Jul 2008
2 posts

thanks keith for redirecting me much appreciated, and now to the problem with good old carver mk2 water heater. just purchased second hand caravan coachman 570/4 on initial testing carver water heating was working fine producing hot water from the mains .then just as were due to go away in it gave another test and now have no power at all on the control box .none of the lights are on at all apparently on initial testing there was a green and red light showing but not sure what these meant.also hubby had sink out and had problems with earth wire when reconnecting ,could this have anything to do with it. would be grateful for any advice .


ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
28 July 2008, 10:30 PM
gary
Joined 13 Mar 2002
1871 posts

Dave, you can download a manual from my website, link below; however it won't tell you the answer to your problem!
I'm assuming you mean hot water is mixing with the cold when you use the cold tap?, this will be caused by a faulty non-return valve in the cold water inlet connection to the heater, replacing it should solve the problem.


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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
28 July 2008, 10:33 PM
gary
Joined 13 Mar 2002
1871 posts

I don't know if you'll need a fitter Barney, at worst you need a new burner module or hopefully it's just a control switch fault but both you can change yourself
So to find out which, first what year is your van?


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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
28 July 2008, 10:39 PM
gary
Joined 13 Mar 2002
1871 posts

Hello Deb glad you found your way!
I think first you should read this overview of the heater, seems to me your confusing mains heating with the gas side. Could though have a bearing if the earth fault caused a fuse to blow in the gas sides control switch?

The Carver Cascade 2 is a 9 litre storage water heater, which when running on gas will heat the water to 65deg c in about 45 minutes. On 240V mains assuming it has this facility, the time can be somewhat longer or shorter depending on the wattage (630w 3amp to 840w 5amp) of the element fitted, you can use both gas and electric together for faster times.
To operate the gas there is a wall switch or a switch within a main control panel, either way both have three lights green, amber and red. When switched on the green lights, (water tank must be full, i.e. water coming from hot taps), if it stays on after about 8 seconds then the gas has lit and all is well. If the green is joined by the red then you may have a problem, but if the gas bottle has just been changed then air in the pipes will have to be bled through by repeating the above 2 or 3 times. Once lit, and it should light without any pops and bangs, (this would indicate it needs a service), the heater looks after itself and gives constant hot water. Any problems will cause it to shut down safely and show the red light. Forget the amber light, it’s to show low voltage and won’t light unless the voltage is so low the heater and everything else packed up long since, though you may notice it ‘flash’ as the switch is turned on or off.
The 240v emersion heater if fitted is totally separate, and lies behind a white plastic box on the inboard end of the water tank. It is controlled by a switch, often close by and at floor level, but again sometimes as part of a remote control panel. The switch has a red light to show it’s “on”, not that it’s working, this will be determined by the water getting hot. If it does not then it may have “tripped” Two types exist, early circa 1990 are non-re-settable but are repairable. Later models have a Red button on the end of the plastic box which is sometimes behind a little flap. Switch off mains, and press to reset.
Other faults concerning the gas side very often come down to the “Burner Module”. This handy little unit contains the burner, gas valve and all the electronics which control it and is accessible from behind the cover outside of the van. In the event things go wrong it’s a 5 minute job to replace it, with a new or serviced exchange unit. One other safety device is a wax filled ‘fusible’ plug, this again is behind the outer cover and shows itself as a 13 mm nut set in the fins above the burner. The wax will melt if things get too hot allowing hot water from the tank to spray over the burner and put the flame out. This will render things safe but will require a new module because it’s control circuitry is faulty. However given if the fuse 'blows' without the water apparently getting to hot then replacing the plug will be sufficient. The point to note here is that over time the wax in the plug degrades or the threads leak, at the very least allowing water to seep onto the burner causing it to rust and eventually will still require replacement of the whole burner module.
Further problems that come to light in spring is the discovery of frost damage to the water tank, the non-return valve which is part of the cold water inlet and other plastic fittings. Failing to drain the heater when there is a chance of temperatures dropping below freezing can be very expensive to repair and should be avoided by removing the drain bung and allowing the heater to drain completely. Later models have a valve above the drain hole in the top left corner of the flue cowl, these have a ‘toggle’ showing that when turned a ¼ in any direction will allow air into the tank and assist the draining. Older models still have the valve but the flue cowl needs to be removed and the valve end pulled to open it, in this case opening all taps in the van will do much the same thing. It is most important that the drain bung is then only placed back into the hole and not screwed in, any water left in the system can then drain away.
Frost damage to the tank will be obvious by the leaking water from the damaged seal, the damaged non-return valve quite often will prevent water coming from the hot taps although the cold water flow will be fine. Other fittings are often cracked by the pressure of the frozen water and will leak on refilling the system.



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ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
29 July 2008, 9:20 AM
barney
Joined 28 Jul 2008
6 posts

Hi Gary,
my van is a 1993 Alpine Sprite,been good up to now!

ALL CARVER CASCADE WATER HEATER, GAS FIRE, FANMASTER,P4 QUESTIONS HERE
29 July 2008, 11:34 AM
gary
Joined 13 Mar 2002
1871 posts

Barney, certainly early 93 burner modules can damage the switch, if you ring me I'll explain a simple test to find out if it is the switch at fault.


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