Truma 4e

[555 FRY]

Hardly any heat at all now when on electric only. Working fine on gas only. Has the electric element possibly failed?
Any help appreciated.

 

[WillH]

We have an E6002 and our elements failed at about 10 years, same symptoms. Replaced them myself, fiddly job.

 

[donkey]

Sounds like a failed element. Be prepared for stupid prices for genuine elements. However, as they are rubbish, you will possibly be better off with much cheaper quality elements available on the net.
Take care when removing the old elements, if they have blown and swollen do not attempt to force them through the machined holes in the housing. This will result in oversized holes which will affect the close fit required for good thermal transmission and possibly result in early element failure. Best to cut the old element prior to removal, so they slide out of the housing. Otherwise a relatively easy but time consuming job. Some boilers are a right pig to remove from their hidden location.

Geoff

 

[dunnah01]

If you can get hold of a clamp meter you can test the current going to the heater on electric. There are 2 elements that work at half or full power. If you struggle to see more than about 3.5 amps then an element has failed.

 

[autorouter]

Another possibility is one of those power meters that measures the watts consumed. If you plug the MH into it, the power should increase by about 800 to 900 watts for one element, and the same again for the second element.

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[Landy Andy]

You can buy a lot of gas for the cost of changing the elements. The electric elements are also massively less powerful than gas. So don’t do much anyway.

 

[donkey]

Another possibility is one of those power meters that measures the watts consumed. If you plug the MH into it, the power should increase by about 800 to 900 watts for one element, and the same again for the second element.

I think dunnah01 is correct, in that the high/low settings on the 4E are not as simple as one or both elements working. They are both used but at half or full power. So if one element has failed consumption will be about 450watts on low setting and 900watts on high.

Geoff

 

[autorouter]

Here's a thread that might be of interest.

Truma Combi 4 E Strip down & replace heating elements

My boiler does not heat water using the electricity. As far as I can tell there are various warning lights to indicate most problems but indicate that the heating elements are kaput other than the fact that everything looks normal at the controls but the water just refuses to heat. Before...

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