Broken switch on night storage heater - fixable?!

[The General]

its item no 4 thermal cut out

THANK YOU!
You had more luck with finding schematics than I did on the Dimplex website!
thanks again.

 

[bradder]

Element resistance of these heaters is around 20 ohms.thermal cut-out for the xl12n is slightly different to the picture but in roughly the same place .(still a manual reset)
cover screws are under the heater using 8mm spanner to remove screws
This heater should not contain asbestos

 

[mogga]

FIRST THINGS FIRST check the list in forum for heaters containing asbestos in the "old heaters rusting in the garage"

 

[The General]

FIRST THINGS FIRST check the list in forum for heaters containing asbestos in the "old heaters rusting in the garage"

already done my friend!
but thanks - I was only aware of the asbestos issue from browsing previous threads on storage heaters, so it's worth mentioning again for anyone else who happens to be browsing this one!
thanks.

 

[oldtimer]

The heater in the picture is the old model ie the high limit is detched from the control module you cannot get a spare as you need to buy a conversion unit that has the control module and high limit combined (i will ad the part No later) Also when I work on these the No1 fault is a worn or old age high limit stat No2 is a faulty 20 amp DP isolation switch due to a cheap as chips unit being used or a slack connection No3 user misuse
ie putting the washing on it overnight to dry ie big bath towel that causes the unit to trip on high temp cut out.

When I go to a job I switch off the the faulty heater at the 20 amp dp swich and measure the resistance this proves the circuit is ok right through the controls and high limit to the element plus if it is a dodgy DP switch then you have not stripped down the heater. Now if this is the case then replace the switch put it on go back to the off peak DB swiitch it off and then measure the resistance again through the MCB circuit cable dp switch and heater.

Dimplex part number XL 09045 also here is the instruction and how to do it plus a link

View attachment 9509009.pdf

Dimplex XL12N/18N/24N

 

[The General]

Wow - thanks!
That's why I ask questions on here.....
great work!

 

[Horsepig]

Actually, I've had a similar problem this week, an XLS24N model with terminals that have detached from the thermal cut out rendering the heater useless. On this model there are two cut outs side by side and having read this thread I assume that a similar solution of the repair kit will be needed. Good post

 

[oldtimer]

Happy to help all contributions welcome:yes::yes::yes:

Forgot to add remember to check the switched side of the control/high limit stat to ensure the element is ok ie 18-24 ohms