Truma s3002 replace Thermocouple and Mini Insert - (Solves problem where only pilot light works)
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- Опубликовано: 13 сен 2024
- My truma gas heater only worked with pilot light. When turning the knob it is not possible to increase power or heat as the main burner didn’t light. I made this video because it seems there are no videos on this subject in English for repairing these systems.
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Disclaimer:
I didn’t record the whole process of removing the heater and reinstalling, but before you do anything like this as a DIY project, you should disconnect your gas cylinder and never tackle the project without oversight of a professional. Never reinstall your gas heater using old o-rings on the exhaust duct.
This video is intended to help folks who have a competency of working with complex projects. Be advised that gas systems are dangerous and I bear no responsibility for any person who injures themselves or others trying to tackle this without proper competency or professional assistance. If you want to work on a gas system like this and don’t know how to do it, then my advice is, don’t. Again, this video is for information purposes only.
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The parts you need for this fix:
Assuming all other elements on your truma heater work, you need to purchase the following items with corresponding part numbers to do this fix. Just google search these part numbers to find a suitable supplier near you
Truma Exhaust duct fitting, seal and clamp kit. Part number 30030-03600
Truma magnetic insert mini. Part number 30030-12200
Truma Thermocouple. Part number 30050-13900
Sadly some dangerous misconceptions and advice on here about what a thermocouple and the valve does.
The thermocouple generates, when heated, as mentioned, a small current which holds the magnetic valve open to allow gas to flow but only when current flows from the thermocouple when hot.
This is why, to light the burner, you push down and hold the knob down for 30 seconds or so, this mechanically opens the valve against the spring and gas flows, the burner lights, the thermocouple gets hot, produces current, and this is the important bit, after about 30 seconds or less, the current energises the magnetic coil enough to keep the valve open, but only as long as it is getting heated, you can then release the knob.
If the flame blows out, the thermocouple no longer produces current, the coil no longer produces a magnetic field, the spring ( which someone in the comments stupidly suggested to remove ) then closes the valve which prevents a dangerous situation of the gas still continuously flowing until the knob is turned to zero !!!!
So by removing the spring of this safety component gas would be allowed to flow causing a potential fire hazard.
Thankyou I have exactly the same problem.
THANK YOU!!!!
Very analytical description of the issue! Thanks mate!
Niice, glad it was helpful!
thanks for this video momo south france
Glad it was helpful!
Thanks this could be helpful as same symptom as my S3000P gas heater . Hope i'll be able to do it without removing the complete heater and try removing the parts from under the caravan. Assuming the part numbers will be the same for my manual piezo igniter model. Hopefully i'll be successful as well 🤞
It’s not likely you will be able to access these parts from under the caravan. Usually the only thing from the bottom is the air inlet and gas connect. The rest is bolted in from the inside. But don’t worry too much, it’s pretty easy to remove once you take the cover off. It’s just the exhaust outlet and 4-8 bolts after disconnecting gas underneath. I don’t know much about the S3000P but please double check part numbers. Can’t say for certain they are the same.
Hey Guys, I removed this from underneath the camper super easy. It’s just one thing to unbolt.
@whatshappens. Hi I have this issue, can you please help me with any information on how you removed it from under the van?
You can bypass the thermocouple setup . Take that mini electrical plunger and remove the spring..if their is no circlip..then cut the spring . Reinstall the plunger which now only acts to seal the gas in but is otherwise ineffective.
Now you will never have a problem with gas flow related to stupid thermocouple problems...however now you will have no gas safety cuttoff mechanism in place.
But gas wont leak out cause you still have to push and turn the stovetop control knobs.
Have you done that before? How did it work?
Reason I ask is because, if I understand correctly, the thermocouple will open the main burner.
When the position of the knob is under 4 the pilot light should always remain burning, and when you open it up the thermo couple should enable gas flow when it gets to temperature.
Do you suggest that if I cut the spring and leave the burner wide open it would be a better option?
I think one downside to this would be that if the spring valve is left open then the heater would run full blast all the time at whatever setting it is turned to. One of the good things about these heaters is that when the flame is going on setting numbers above 4 the flame will get to temperature and then shut off the main burner, then when it falls below a certain temperature the main burner reactivates, kind of acting like a temperature regulator and saving on gas. Would I lose such a feature in that case?
Thanks for the video, it’s much appreciated.
So the heater is supposed to take air from outside the camper, exhaust them outside camper and the heater works as sort of a radiator, using radiant heat from the fins?
It doesn’t create airflow though a camper like a modern diesel heater piped around the camper would does it?
Yes that’s correct. It’s a radiant heater in that sense. But, often, many campers are equipped with an electric fan and piping just behind this heat source to pump the radiant air throughout the camper.
I have the same problem on my Truma S 3002 (2010), and will try your method. Have ordered the two parts. However, how do I fit in the termocoupler - do I need to dismount the whole heater - I have looked underneath - and do not see how I can loosen the old, and fasten a new one??
Yes, you need to dismount the entire heater to access this area.
@@dashiszznit Thx - have done so now, and bought a complete new burner unit - instead of just the two parts you recommended. Cost me about $160 in addition. My unit is a 2010 model, so I hope this was a wise investment... - eliminating potential future problems... Will use a certified mechanic to mount it all together - and test for leaks...
@@teletore yea, whole burner assembly is probably full of new parts. Glad you got sorted
Hei. I also have truma s3002, but the insert was bigger then in your video. Maybe you know if there was different type of magnetic inserts?
What’s the model year of your caravan? Mine was a 2007, maybe there are different variations, perhaps?
Hi, thanks for the video.
One question..... The old thermocouple seems to have two nuts where it goes to the valve. One big, one small. The new one only the bigger nut. Why is that? Superceded part??
I think the big nut is there to only hold the magnetic valve in place. If you scroll to the 4:00 minute mark you’ll see a cut of the video where it isn’t installed. You’ll install the big nut to hold the valve insert in place and then the valve end of the thermocouple (small nut) will be then be used to attach the thermocouple to the big nut which should have a threaded hole to screw it in place.
Also just a tip, your thermocouple should have come also with a larger nut as a part of the kit. That is for the thermocouple end that sits near the pilot light, to put that in its correct position. Mentioning that, just in case you’re confusing that part for the other one I the valve side.
@@dashiszznit Got it. Thanks for the reply. Understand now.
I think mine is just making a poor connection. It's working ok again now. Mind you, it is a 1989 caravan so its done well.
I haven't replaced anything or even bought anything new yet. I did give things a clean a few years ago. 👍
@@ivanhoe6366 yea, mine is 2007… newer Truma, but maybe not as well built as the older ones lol
Where is the german video link please
I can’t remember where I found it since I posted this video quite some time ago. If you google translate “truma troubleshooting” in German and search that phrase you’ll come across some videos regarding the fix
@@dashiszznit i found it thanks
I have a truma sl3002 and it's not turning on. Can you please send me your contact information? I would like to consult with you.
Hi Benjamin, I’m not a professional in all matters concerning these system. This was mainly a video for this one issue I found out the solution for, which is very common. Not sure I can be a big help for your specific problem. Id definitely recommend calling a gas pro to give you a hand.