Truma Combi 6 Not Igniting

[mike.lamb]

Hi,

I have the Truma Combi 6 (Gas only) in our 2017 Hymer.

On our last few trips, we've had Error E122H on the control panel, almost always when using the oven / hob and fridge on gas. I'd put it down to too much demand on the gas feed (this did happen with pretty much full tanks) and the issue went away when I wasn't using the oven.

But today (full story of the drama) the error came back and the boiler refuses to ignite even when nothing else is in use. I can hear fans spin up, it attempt to ignite, fail and then shut down.

The tanks are completely full and no issue getting gas to the hob. It's cold out but still a few degrees above freezing, running on LPG from Morrisons in GasLow tanks, so I don't think it's a butane issue.

Any suggestions? Does anyone have issues when running heating / oven / fridge all off gas at the same time? I'm wondering if that's a related issue.

Thanks in advance!

Mike

 

[Tombola]

Seen a thread a little back about butane causing problems at low temps, cant find it atm

 

[Neil S]

I would get the gas pressure checked it could well be a partially blocked regulator

 

[Lenny HB]

If running from LPG that you filled in the UK that will be 100%propane so no problem.

If you have the optional Truma bulkhead regulator it's probably faulty.

 

[mike.lamb]

If running from LPG that you filled in the UK that will be 100%propane so no problem.

If you have the optional Truma bulkhead regulator it's probably faulty.

Thanks - yes, UK LPG so good to know.

Will take a look at the regulator tomorrow, anything I can look for or test other than getting a replacement? Limited options for getting it checked out in lockdown!

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[Lenny HB]

Thanks - yes, UK LPG so good to know.

Will take a look at the regulator tomorrow, anything I can look for or test other than getting a replacement? Limited options for getting it checked out in lockdown!

All you can do is replace it with another one.

 

[BusyBuilder]

I had this problem, replaced the regulator for new Truma Duo. I was surprised at the gas pressure afterwards. The hob is now like a jet engine in full blast.

 

[mike.lamb]

So this is what I have at the moment - the truma MonoControl combined with the GasLow changeover.

Can I replace both of these with one of these?

 

[mike.lamb]

So... I removed the switchover valve and connected one bottle directly to the regulator and it fired up first time. Thanks all for your help identifying the issue.

Unless there are other suggestions, looks like i'll be getting a Truma Duo to replace it.

Thanks!

 

[Lenny HB]

So this is what I have at the moment - the truma MonoControl combined with the GasLow changeover.

Can I replace both of these with one of these?



View attachment 457667

Yes but expensive.

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[BusyBuilder]

Yes, we have that fitted.