Truma Water Heater - Zippy... Anyone?

TONUP · 13-05-2014, 19:03

We are currently on holiday in our caravan, and all is well except that the water heater is constantly spluttering and spitting when we turn on the hot tap.

It's a Bailey caravan, and I'm fairly sure that it is a Truma water heater.

It's currently running off the electric supply and mains water hook-up (serviced pitch type).

Anyone know what might be causing this?

Thanks

Alan

spinna · 13-05-2014, 19:09

Sounds like air in the system. Have you tried bleeding the system again?

zippy656 · 13-05-2014, 19:26

Run tap for a while, get wll the air out.

TONUP · 13-05-2014, 20:09

Thanks Guys, I will try running the tap for a while.

I've tried it a couple of times, but maybe not for long enough.

Thanks

Alan

AlexD333 · 13-05-2014, 20:29

Any update?

micktheshed · 13-05-2014, 20:55

Sounds to me as if the pump has an air leak, probably at the connection into the 'van. Try smearing the inlet seals with cooking oil or if that doesn’t stop it then something thicker like butter. If successful then it proves the fault.
This is only a temporary measure as new seals ('O' rings ?) will be required.

firebobby · 13-05-2014, 22:30

On arrival at a site, open the hot kitchen tap and allow the heater to vent fully, then I do the same with the bathroom taps, hot and cold.
This always works for us.

TONUP · 14-05-2014, 20:13

Quote:

Originally Posted by AlexD333

Any update?

Thanks again to all that responded.

Tried bleeding it again, but it continues to splutter out water... Sort of like a steam valve ( if that makes sense).

I will try a new seal when I get home, and give it a full test. I don't want to do anything to cause a full failure whilst I am away.

Will update in due course.

Regards

Alan

firebobby · 14-05-2014, 20:27

Quote:

Originally Posted by TONUP

Thanks again to all that responded.

Tried bleeding it again, but it continues to splutter out water... Sort of like a steam valve ( if that makes sense).

I will try a new seal when I get home, and give it a full test. I don't want to do anything to cause a full failure whilst I am away.

Will update in due course.

Regards

Alan

So, with the hot tap open, do you get flowing water or just steam

briggie · 14-05-2014, 21:19

have a word with rick

TONUP · 14-05-2014, 23:25

Quote:

Originally Posted by firebobby

So, with the hot tap open, do you get flowing water or just steam

Hot water.... Very hot actually, with a staccato like flow.

Thermostat is on 40 degrees?

Thanks

Alan

judd750 · 14-05-2014, 23:45

sounds like thermostat is goosed

zippy656 · 15-05-2014, 06:07

Quote:

Originally Posted by judd750

sounds like thermostat is goosed

New element, as built in

13-05-2014, 19:03	#1
TONUP Senior Member Join Date: Oct 2008 Location: England Posts: 755	Truma Water Heater - Zippy... Anyone? We are currently on holiday in our caravan, and all is well except that the water heater is constantly spluttering and spitting when we turn on the hot tap. It's a Bailey caravan, and I'm fairly sure that it is a Truma water heater. It's currently running off the electric supply and mains water hook-up (serviced pitch type). Anyone know what might be causing this? Thanks Alan

13-05-2014, 19:09	#2
spinna Senior Member Join Date: Dec 2010 Location: Telford, Shropshire Vehicle: Nissan Patrol y60 4.2d Posts: 1,287	Sounds like air in the system. Have you tried bleeding the system again?

13-05-2014, 19:26	#3
zippy656 Senior Member Join Date: Aug 2008 Location: Devizes Wiltshire Vehicle: Nissan Note Ntec 1.5 Posts: 14,137	Run tap for a while, get wll the air out.

13-05-2014, 20:09	#4
TONUP Senior Member Join Date: Oct 2008 Location: England Posts: 755	Thanks Guys, I will try running the tap for a while. I've tried it a couple of times, but maybe not for long enough. Thanks Alan

13-05-2014, 20:29	#5
AlexD333 Senior Member Join Date: Jan 2014 Location: Uk Vehicle: 2004 Terrano 2.7 TDI Posts: 7,847	Any update?

13-05-2014, 20:55	#6
micktheshed Senior Member Join Date: Feb 2011 Location: warwickshire Vehicle: Dec 2004, terrano 3l Auto Posts: 313	Sounds to me as if the pump has an air leak, probably at the connection into the 'van. Try smearing the inlet seals with cooking oil or if that doesn’t stop it then something thicker like butter. If successful then it proves the fault. This is only a temporary measure as new seals ('O' rings ?) will be required.

13-05-2014, 22:30	#7
firebobby Senior Member Join Date: Feb 2012 Location: South Bucks Vehicle: Terrano 3.0 SVE 2005 Posts: 3,499	On arrival at a site, open the hot kitchen tap and allow the heater to vent fully, then I do the same with the bathroom taps, hot and cold. This always works for us.

14-05-2014, 21:19	#10
briggie Senior Member Join Date: Mar 2010 Location: peoples democratic republic of west yorkshire Vehicle: " alice " Posts: 10,473	have a word with rick

14-05-2014, 23:45	#12
judd750 Senior Member Join Date: Jul 2013 Location: west yorkshire Vehicle: 1998,1999, 2000, 2.7TDi Posts: 626	sounds like thermostat is goosed