Storage Heaters on Econ 7 not working

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Good Morning all,

Just had a call from a friend, ALL of his storage heaters have stopped working, (in that they are not heating up).
He's on an eco 7 tarriff with two meters, the heaters are off the "night" meter.

I have a fairly good understanding of testing, elec safety etc having completed my Elec Installation Level 2 C&G but not had much actual site / work environment for experience.

I'm going round to have a look tomorrow to see if its something simple, What items can i check for? Usually i'd turn off elecs, check fuse in the fused spur. IF that's ok, i'd take off the spur check wiring, and then turn elecs back on with the heater off, and check if mains power is coming to the incoming side of the spur. (of it its got a neon then that will indicate without needing to take off).

If power on the incoming side, I'd rewire the heater onto a plug and connect to mains, and also connect a device (eg lamp fitting + lamp) to the spur and check what does/doesn't work.

Problem is given that its on eco7, there will be no power coming in on the supply side... so i cant easily check that side without going into the consumer unit - which I'm not prepared to do. Is there another way i can check before i ask him a qualified electrician to come - or at least give the electrician a better idea of what work is needed when he calls?
 
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If it is all of the heaters that have stopped, then there is no point looking at anything to do with the INDIVIDUAL heaters.

You need to check averything to do with the off peak side of the installation. So start with checking the offpeak consumer unit.

With the main switch off, you will be able to carry out basic continuity tests on the installation side. If that is OK the fault would appear to be on the supply side, and you'll need the electricity supplier (the ones you pay the bills to) to check that out.

If you want to be absolutely sure, you'll need to pop over there at 2am and check out voltages :(
 
I guess i want to rule out that its the heater side before involving someone else - or see if there is a quick fix.

I'll be eyeballing the consumer unit and fuses/mcb/rcd's on that side first before anything else just to make sure. But I guess im asking if there is any tips or tricks that pros use when diagnosing on eco 7 installs?
 
I will repeat. If all heaters are not working, it will be the common equipment (CU) or the supply. Don't waste your time on the individual heaters.

But I guess im asking if there is any tips or tricks that pros use when diagnosing on eco 7 installs?
,Set your alarm clock!
 
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Has someone put wet clothes to dry on a storage heater, could water have got into the heater and the RCD tripped when the Teleswitch put the power on ?
 
If it is supplied from a separate meter as opposed to a dual tariff meter it sounds quite an old install & may be controlled by a mechanical timeswitch which may well have given up the ghost
 
Thanks - I'll check meter and CU when i get there, and if need be will have to make an early morning call on Sunday if i don't find anything obvious!
 
So i spent a bit of time investigating.

The setup:

1 meter with 2 CU's.

CU1 is perm on.
CU2 is only on at off peak times (the eco 7 times) and has the heaters on.

Checked all fuses on CU2 (all 4) and they all are fine (simple continuity test)

So either fault is at the meter end or heater end.

Spoke to him, when he told me that he already had E.On out and they have checked and confirmed the meter is functioning. (Could have told me earlier!)

So i ended up taking a feed from CU1, and connecting to one of the circuits on CU2, and then checked that power was present on a) that circuit at the CU, and b) there is power at the switched spur.

All ok at the spur side which leads me to believe a problem at the heater side (With the power on at the spur on, the heater didn't heat up).

Checked the power in the heater, there is power at various parts in the heater but that's where I've stopped and now going to hand over to a specialist on night storage heaters. Could be a number of items at fault.

With regards to all the heaters stopped working, he also told me they didn't all stop working at the same time - they stopped over a period of 6 weeks!:rolleyes:

So trying to arrange someone to come in and service/repair the heaters.
If anyone is willing to help - property is in Wembley - north west London.
The heaters are Dimplex TX18 - 3 in total with probable various problems!

Let me know if anyone is willing to carry out the work and let me know the rate.
 
The heaters aren't complex.

There are only 4 things that can go wrong.

1) Element - And there is usually more than 1, (but one could have caused an RCD to fail)

2) Thermostat at the top knob open circuit.

3) Thermal fuse, if clothes have covered the vents

4) internal wiring.
 
The heaters aren't complex.

There are only 4 things that can go wrong.

1) Element - And there is usually more than 1, (but one could have caused an RCD to fail)

2) Thermostat at the top knob open circuit.

3) Thermal fuse, if clothes have covered the vents

4) internal wiring.

I don't have the time to check and order parts etc, dimplex have a company who said they can come out on Friday for a fixed fee to repair them, parts and labour included for £139. .. unless he finds anyone better will leave that as the option as they should have all the parts with then and be able to fix in one visit!
 
I am sure you realise that four things that last 'for ever' to have failed in six weeks is well...
 
With regards to all the heaters stopped working, he also told me they didn't all stop working at the same time - they stopped over a period of 6 weeks!:rolleyes:

Possibly as he moved his drying clothes from heater to heater ...

which would strongly suggest the thermal fuse, every time.
 
Yep, already warned him re the cloths on the dryer, he swears he hasnt but who knows... meanwhile not sure where the reset is on them so not able to reset!

Its the dimplex XT18...

I managed to get the front cover off where i can see the thermostat and wiring but couldnt identify the reset!
 
I recall only the later one had a resetable cutout.

Nice pictures though, that would have helped the OP.
 

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