Electrolux TE1120 (916097623 00) Semi Comm’ Dryer Heater TOC

[jontymox]

Good evening all,

I fitted a new heater unit to the above dryer around three months ago, as it had failed.

However, the TOC has now fused on the replacement heater.

At the time, I wondered if it would be feasible to replace just the TOC on another of this customers’ tumble dryers, (they have two of the above models) as it had fused, and renewed the complete heater unit as Electrolux do not supply the TOC separately.

We agreed via this forum that it was not a good idea to fit a compatible TOC, yet now if I could obtain the genuine TOC it would make sense to replace it, rather than the complete heater assembly which costs over £100.00

The numbers on the TOC are: 36FXE24 20226 L140C A1929 which aren’t readily available online.

I cannot fathom how the above has blown, as the staff where the dryers are located agreed to clean the filter and condenser, and try not to overload the dryer. The circulation is also fine, but I would welcome some advice, as I don’t wish for these dryer/s to repeatedly fail.

Kind regards,

jonty

[electrofix]

since it looks like a 140 degree stat there seems to be one in hotpoint kit toc42

https://shop.ukwhitegoods.co.uk/hp66…it#description

cant be 100{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} its same spec but at least it a one shot device doing the same job in another unit

but

there needs to be a reason for failure
you will struggle to remove old stat and replace as its rivetted onto mica

could be intermittant sticking relay. or anything that keeps the heater on too long

looking at design there does not seem to be any temp control at the heater. ( correction it looks like it may be hidden inside element) the other ntc is for return air. so if air flow is affected the heater may pop stat which i assume is one shot. could be return ntc faulty could even be motor stalls causing the problem but you are unlikely to find out as its not repeatable all the time

also as we have said before if anyhing serious happens and the part is not approved you will be for the high jump

Dave

[jontymox]

Good morning Dave,

Thank you for your assistance again.

Yes, it’s a one shot TOC and it makes sense to replace just that with the correct/approved item, especially if I cannot find the reason why it has fused, and blows again.

I’ll revisit, and try and find reason for TOC popping.

Thanks again,

jonty

[jontymox]

p.s. It would be good to obtain the precise TOC but I’m struggling to locate such.

Do you know who makes them, as Electrolux unhelpful?

[electrofix]

it may be on the element. Irca make a lot of the good ones but cant say who makes this

have emailed you the manuals so you can try test proceedures etc

Dave

[murv]

Have not seen this dryer but It’s always worth checking the value of the capacitor. If it is down by 20{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} or more I would change it.

Murv…

[jontymox]

Thanks again gent’s,

I’ve emailed you, Dave…. thanks for the information!

Regarding the capacitor, Murv, I generally struggle to conclusively test such components, and am intrigued that this could cause the fault.(“an electrical spike?”)

jonty

[jontymox]

The heater manufacturer is Backer, so I’ll try further to see if ‘stat’s available separately.

[murv]

I find that safety thermostats mainly fail because of poor airflow, faulty input thermostat or less commonly a faulty timer/pcb.

Capacitors can just stop working but they usually deteriorate over time getting weaker until an observable fault results.

If the motor run capacitor is low value then the motor seems to start okay on an empty test but will struggle to get going under load resulting in a poor airflow from the circulating fan.

To test capacitors you need a multimeter with a capacitor test function. The last two Hoover/Candy dryers I serviced were both low, the 7MFD capacitors tested at 2.3MFD and 2.8MFD. One had blown the 206C thermal fuse and the other was still running but the rear of the drum was showing signs of overheating.

An Indesit today had blown the one shot because the terminals were poor and overheating. The capacitor checked at 7.8MFD which is not too bad for a 9MFD after a few years use.

Murv…

[jontymox]

Thank you Murv,

Will test capacitor as suggested, as something must be causing TOC to fail.

Kind regards,

jonty

[neon_3SP_glow]

Make sure customer isn’t overloading machine and blocking airflow.

Also, opening the door to check if things are dry can sometimes cause issues (?) = residual heat in element and no airflow.

Always quiz/advise the customer on these things.

[jontymox]

Replaced heater unit yesterday, having checked again for possible causes of TOC blowing…. all fine.

Thanks again for all your advice and help.

jonty

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