Truma C 6002

[Dee101]

Hi I have the attached file Trumatic C 6002 on my 1995/96 Hymer B654. Part of the attached label also shows the years 2003,2004&2005 spaced out horizontally next to each other.
There are also larger letters that state:
C 603 -E- 14098236.
Can anyone recommend anyone that is competent in all matters dealing with this?
For my part I’ve blown light pressurised air from a can from the outside (it worked for someone on Youtube) and I changed the ignition box, and it does go through the correct sequence, but just before the gas flows, it turns itself off. And this is via electric hook up or leisure batteries. And on all options.
It did work briefly about a month ago.
Without this, I havd to boil everything.
I’m currently in the Nottingham area, but would travel just about anywhere to get it fixed.
Del

 

[Boringfrog]

100% sure you have gas and it's turned on?

 

[68c]

By 'blowing air', I assume you mean disconnecting the gas pipe and blowing air through it. For what reason, clearing a blockage? Surely the system only knows it has gas is after it has done the ignition procedure and that it detects a flame. Where else would blowing air help.

 

[Dee101]

I defo have gas.
The air was simply blown through the exterior cowling with an attached piece of flexible hose. I poked it in as far as it would go

 

[68c]

Sorry, I am still confused over what you mean by blowing air. Are you trying to prove air can flow through the ducts ? Reading your original post it looks like the fault you are trying to address is it will not light. You mention 'just before the gas flows, it turns itself off'. How do you know the gas has not started to flow? You could be chasing an ignition fault, a flame detection fault, a gas valve fault or even a control module fault. Do you have a red light warning on the control panel?

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[Dee101]

Yes, does have a red light. Need an engineer really I feel. Though would happily do myself
Dee

 

[JockandRita]

Dee101.

Get in touch with Truma at Derby, and arrange a visit.

Contact - Truma

The Truma customer service team is there for you if you require any help with your Truma product. If you have a question about an appliance, always have information about the appliance type, year of manufacture and factory number at hand. This will help us provide you with faster support. Where...

www.truma.com

01283 587960

They overhauled our 6002C advising that it should last for another 10 x years. Great service.

Cheers,~

Jock.

 

[Clivefog]

Gas regulator gummed up?

 

[Bessy765]

On that model the thermocouple needs to (see) the flame slightly different than the normal type. Least it did on hours on a 2008 Bessacar.

 

[GeoffnDee]

Is there a heater unit safety cut out switch fitted to any window that is over the boiler outlet pipe , if so, it may be stopping the heater operating if it is faulty or if the window is not fully closed the switch will not allow the heater to work. (these switches are not always fitted but it is worth checking if there is one} Otherwise as suggested Truma near Derby.

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[JockandRita]

TBH, going on the age of the heater, and the terrible state of the igniter electrodes on our 99 model, I wouldn't be messing about with it.
It's got to be worth a phone call.
Beware though, Truma told me that they don't do run of the mill repairs, but if there is a safety issue, they will book you in.
I was convinced I had a safety issue.

Cheers,

Jock.

 

[Dee101]

I have spoken to Truma on several occasions. They no longer offer advice or anything else for that matter on units more than 25 years old. Mine is 26/27. In the end they did give me details of an engineer that you can post things to. But really, does anyone out there know of an engineer that knows there way around things?
Del

 

[Dave Scadding]

Yes, does have a red light. Need an engineer really I feel. Though would happily do myself
Dee

Hi Dee, I think the problem is the air flow in and out . I would suggest removing the vent cover (where you blew air in) and the other end from the boiler. Any small amount of debris, even a spiderweb will prevent the boiler firing up. Give the twin walled pipe a good clear out including the vent you have removed.

 

[Dee101]

Externally, I did remove the vent cover and took out the 6 screws beneath. But it seemed to be connected at the other end (inside), so my method of extending the hose into the vent seemed the only option. Unless you know why/how the bloody thing wouldn’t budge from the outside

 

[Wagoneer]

Does the plastic red mushroom shaped vertical plunger stay in the "up position" when you try to light the gas ?

This is the boiler dump valve. I believe these early Truma models were integrated with the gas ignition system. So, if the plunger is "down" the gas will not flow/ignite.

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[RichardandKaren]

Speak to Richard at A&R Electronics in Cannock. If you can get the whole unit out and take it to him he will test it for you. Otherwise, you can just send him the main PCB Board or the combustion fan unit to test. He's tremendously knowledgeable and helpful. His number is 01543 579302. Trouble is with these units is that there are not many spare parts available now.

 

[Dee101]

Richard is the guy that sent me the new ignition unit. But unfortunately, he does not “come into” the motorhome. I’m trying to avoid dismantling the whole thing, boxing it up and sending to him. There must be a mobile engineer that is knowledgeable with this? Not that I’ve managed to find someone to date

 

[Dave Scadding]

Externally, I did remove the vent cover and took out the 6 screws beneath. But it seemed to be connected at the other end (inside), so my method of extending the hose into the vent seemed the only option. Unless you know why/how the bloody thing wouldn’t budge from the outside

The other end is connected to the boiler probably with a jubilee type clip. You’ll need to have both ends disconnected to blow through any debris.

 

[Dee101]

Right, but there’s no access around these things from inside is there?

 

[68c]

If you think the airflow to the burner is blocked you may be able to clear it with a vacuum cleaner, working the hose up as far as it will go. Similar with the exhaust duct. I doubt if the hot air duct being blocked is the problem. If it was it would still light although then shut down after some minutes when the heated air gets too hot due to the restriction. The other suggestions given above are a good trail to follow.

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[RichardandKaren]

I can give you the number of a mobile guy in the Midlands if that’s any use to you.

 

[Wagoneer]

Right, but there’s no access around these things from inside is there?

I installed a 240v heating collar around the C6002 boiler. No problem on my Hymer van but other vans may be more restrictive.

 

[JockandRita]

There must be a mobile engineer that is knowledgeable with this? Not that I’ve managed to find someone to date

And that is the very reason I ended up at the factory. Absolutely no Truma listed engineer I spoke to, had a clue about the older units.

Cheers,

Jock.

 

[Dee101]

Like I said jock, the bastards don’t want to know with it being over 25 years old. Plenty of life left in her!
Dee

 

[JockandRita]

Like I said jock, the bastards don’t want to know with it being over 25 years old. Plenty of life left in her!
Dee

Good luck getting it sorted Dee.

Cheers

Jock.

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