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Andy™

there are 2 main faults with storage heaters. no heat or lack of heat

No heat:

1: make sure switch is on overnight. most have a neon so at night you can easily see if there is a supply to it. be aware that this supply is usually economy 7 and only works during night - usually around 12-7am

2: if still nothing, its most likely the thermal link. this usually trip/melt if something is placed over the heater. like your wet clothes. the thermal trip/link is located under the main cover (normally screwed on at the bottom, may need a stubby screwdriver or pliers to get screw out) next to the control dials.

there are 2 main types, re-settable links and melting links.

If you have a resettable type, there will be some kind of reset button. if something clicks when this is pressed, it had tripped. put cover back together.

If its a melting link, you will see 2x wires with a gap between. and some residue of what was between them.

they look like this

1ddc2ab182b7b8b4

they cost around

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Apache

Good post there Andy :)

Worth pointing out that the heater almost certainly going to be on economy 7 and only live between midnight and 7am! The neon won't light up in the day whatever you do.

Also some storage heaters have a convector heater attached and can have 2 power inputs - 1 on the economy 7 for the storage heater bit and one on all the time for the convector.

:)

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Andy™

Comments added.

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mooselinf

Hi all

Thanks for an excellent feed. Any ideas where you can get hold of an element for a nightstor boiler. Mine has stopped working and one thermal link has blown but I spoke to someone who knows about these and he has suggested that the other element has blown.

Is it easy to replace an element? (I have some pretty good DIY and electrical skills)

Cheers

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Andy™

click for heating element - i know this is a different manufacturer, but it may fit

they are fairly easy to replace, remove covers, remove bricks that are in the way, replace and put back together. make sure you have a dust sheet down - insulation always crumbles when you look at it and it can be messy. also check the asbestos link before you start

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green-hornet

Good post andy, we have had a few recently in preston and have replaced the whole sytem rather than get new parts.

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Apache
Good post andy, we have had a few recently in preston and have replaced the whole sytem rather than get new parts.

Is that not a bit extream it spares are a few ponds plus a bit of labour?

Or are these really old ones?

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Andy™
Is that not a bit extream it spares are a few ponds plus a bit of labour?

Or are these really old ones?

depending on heater and condition, it can be better to replace than repair

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green-hornet

They where council properties and it was more cost effective to replace than to repair.

The newer heaters where far more efficient.

On your original post andy, one thing I have found with the older mech type of economy seven timers, is that they are not set right,Ie times and even days are way out.

I had one recently and I called the dno they said they had no economy seven data on that property?Just shows how far out some records are.

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Guest Chelsea

Hi

Sitting in New Zealand and trying to sort out what seems to be an ancient model of nightstore heater. It is a GEC Nightstor - without any further technical data lable.

It is connected to a room thermostat, which switches it off and on. But if the set room temperature can not be reached the heater seems to keep going and ends up (several times) melting the 144 degree temperatur fuse.

1. What are potential causes for it? And how is it supposed to be avoided?

2. Is there supposed to be an internal thermostat, which could be faulty? (couldn't find one though)

Getting cold and would love to hear some advice.

Thanks

Chelsea

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Admin

Welcome to the forum, Chelsea. I am sure someone will reply to your post soon. :D

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green-hornet

There should be a safety cut out switch which is thermally resetable.

If the model is so old this may not be protected.

The nighstor was made in my neck of the woods (my area) and I think the manufacture of them was transferred to a company called Apecs.

They made the nightstor 100 storage heaters and the nightstor range of boilers.

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Theorysparky
Good post there Andy :)

Worth pointing out that the heater almost certainly going to be on economy 7 and only live between midnight and 7am! The neon won't light up in the day whatever you do.

Also some storage heaters have a convector heater attached and can have 2 power inputs - 1 on the economy 7 for the storage heater bit and one on all the time for the convector.

:)

did a storage heater fault last year and found there was an analogue meter for the electrics,,,,took my a while to spot that the time the meter was showing was 4 hours ahead of the actual time.......

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Apache

Admin or Mods,

Do you think this is worthy of 'sticky' status to make it more easily findable?

It seems a good place to start with any storage heater problems!

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NozSpark

While I was at a customers house the other week they said that their NSH had been sparking in the night (white sparks at bottom). Now I only put these in 12 months ago and initially thought that they were imagining things in their sleepy haze!

On checking the continuity I found that one of the elements was open circuit, so opened it up and found...this ...and... closer!!

The sheath had melted (almost vapourised):o:O:O:O

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Andy™

not that isnt good!

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batty
While I was at a customers house the other week they said that their NSH had been sparking in the night (white sparks at bottom). Now I only put these in 12 months ago and initially thought that they were imagining things in their sleepy haze!

On checking the continuity I found that one of the elements was open circuit, so opened it up and found...this ...and... closer!!

The sheath had melted (almost vapourised):o:O:O:O

What make was it?

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NozSpark
What make was it?

Creda Sunhouse!

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batty
Creda Sunhouse!

I had to change 3 on a newlec heater last year they were just like that. Probably made in china.

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the doctor

ah ha,

this some times happened in my old days at the leccy board.....

a manufacturing fault "too many watts per inch" as we used to say...;)

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batty
ah ha,

this some times happened in my old days at the leccy board.....

a manufacturing fault "too many watts per inch" as we used to say...;)

What?

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a12jpm

Great post. Also consider that there is the Economy 10 which runs at 3 different times of the day, found that one out the hard way! Click here for more info.

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the doctor
What?

Hi Batty,

the element is designed to dissipate its power over its length. so.....

if it was 1200W and 12 inches long that would be 100W/ inch

if the manufacturer bunches the coils in one bit and stretches them in another, you still get your 1200W but not even. you end up with hotspots. Then as the element coil melts together the current rises and spreads through out the whole element, before it finally pops.... :o

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dean_sussex
Hi

Sitting in New Zealand and trying to sort out what seems to be an ancient model of nightstore heater. It is a GEC Nightstor - without any further technical data lable.

It is connected to a room thermostat, which switches it off and on. But if the set room temperature can not be reached the heater seems to keep going and ends up (several times) melting the 144 degree temperatur fuse.

1. What are potential causes for it? And how is it supposed to be avoided?

2. Is there supposed to be an internal thermostat, which could be faulty? (couldn't find one though)

Getting cold and would love to hear some advice.

Thanks

Chelsea

Well this is interesting, I service storage heaters for 98% East Sussex County Council properties, yes boring job but pays my wage for the company I'm with.

Answer to Chelsea, This does depend on how your storage heater works, is it Element only? Fan assisted? or Convector & Elements majority of the time your room stat controls the fan/Boost thus switching off when temperture reached, can assume room taking time to heat up and click stat off, potential cause could be faulty room stat being temperamental or room stat being to far not picking up good amount or heat from unit, another suggestion could be input stat to storage heater inself not clicking out at required cut off point but if this is the case your room stat should back that up shutting off heater but that could possibly only be controlling the fan not the heat itself, you need to distinguish what is contollering the Heat input first.

TRY THIS it might help finding out

As many say it, is sometimes cost effective to replace over repair depending on the over all condition of the heater shell, components etc, I tend to repair unless I absolutely have to replace commercially.

I use Capri Electrical Developments Ltd. for reference to many Storage Heaters, wap friendly for those using mobiles on site, have ordered many spare parts for heaters 15+ years old, I don't normally advertise companies on forums however they are highly useful, have downloadable/printable reference page to thermal links on replacements and breakdowns on most models, worth a look.

If I can help in anyway I will try my very best, please feel free to send me a PM

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Apache
Admin or Mods,

Do you think this is worthy of 'sticky' status to make it more easily findable?

It seems a good place to start with any storage heater problems!

Anyone? Sticky? No?

bad day explode

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