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Subject Topic: help with carva 2 heater Post Reply Post New Topic
23/4/2014 at 7:36pm
 Location: tyne and wear
 Outfit: abi jubilee rallyman 1993 2 berth
View Robert butler's Profile View Profile   Reply to Robert butler Reply   Quote Robert butler Quote  
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Hi I am having problems with my carva 2 heater . After repairing cold pipe due to leak every time I turn cold or hot tap on only a tiny trickle will come out and rest off water just spurts out of overflow pipe on top of tank . Pump works fine as I temp blocked over flow pipe so water could not spurt out and had to go to taps when turned on . Over flow pipe must be there for a reason so any help please .


23/4/2014 at 8:21pm
 Location: Lichfield
 Outfit: Coachman Amara 450
View tango55's Profile View Profile   Reply to tango55 Reply   Quote tango55 Quote  
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There isn't an overflow pipe on top of the tank as if there was this would likely to cause a flood inside the caravan. The hot water tank is round with two water connections, one at the bottom where the cold water entry is connected (blue pipe) and the top where the hot water exit pipe is connected (red pipe). If there is no red pipe fitted then it would look like an overflow pipe which actually is a non return pressure relief valve so if you have no water pipe connection then this explains why you have no water coming out of the taps. The system has to be totally sealed otherwise you get no hot or cold water flowing through the system.


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23/4/2014 at 11:53pm
 Location: None Entered
 Outfit: http: www.arcsystems.biz
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Except Tango, some caravan makers fitted a 'tee' to the hot water outlet and this drained via a pipe through the floor?!
I've absolutely no idea why they thought this was required and advise the 'tee' is removed and the hot water pipe connected directly to the heater.

But in this case it appears both hot and cold is a problem and not at all sure why that should be??


24/4/2014 at 11:27am
 Location: Lichfield
 Outfit: Coachman Amara 450
View tango55's Profile View Profile   Reply to tango55 Reply   Quote tango55 Quote  
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Sorry Gary, I didn't know that some caravan manufacturers fitted an overflow as I'm only speaking from my own experience with my own system but it is puzzling as to why no cold water is running as well. I would have thought that it is down to a leak in the water system somewhere so it's failing to create any pressure required to activate the switch.


25/4/2014 at 6:44am
 Location: tyne and wear
 Outfit: abi jubilee rallyman 1993 2 berth
View Robert butler's Profile View Profile   Reply to Robert butler Reply   Quote Robert butler Quote  
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Thanks I have taken t off and now water fine


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25/4/2014 at 12:24pm
 Location: Lichfield
 Outfit: Coachman Amara 450
View tango55's Profile View Profile   Reply to tango55 Reply   Quote tango55 Quote  
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Glad you eventually got it sorted but that was down to the input from Gary's post from 'arc systems'. He has sorted many problems for caravanners on this forum as he is always the best one to ask if he is available. Well done again Gary.



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