HELP needed with immersion heater

[hellobadger69]

Hello everyone, I have a lack of hot water....

I have an immersion heater system for my hot water (pics attached) and from what I gather from reading these forums the two electrical cables leading into the heater connect to two separate filaments. The top one fires up when I flick the booster switch and the bottom one works the rest of the time. Although now it doesn't seem to be working - the booster switch still heats the water, but this is the only way for it to get hot. When I took of the cap on the bottom filament thing it looked like my second pic. Here are my questions:

Is the blue thing a fuse?
If so, where can I get a replacement (assuming it has broken)?
If this doesn't fix it I was going to try a new filament. Wise?

Many thanks everyone.

Andy


View media item 17016 View media item 17017 [/img]

 

[kevplumb]

Is the blue thing a fuse?
If so, where can I get a replacement (assuming it has broken)?
If this doesn't fix it I was going to try a new filament. Wise?

no its a thermostat

plumbers merchant

yes

 

[hellobadger69]

Thanks kevplumb. People have been telling my to swap the fuse. I can't seem to find where it is though. Any ideas?

 

[seco services]

I can't seem to find where it is though. Any ideas?

follow the white cable back to the plug, fcu etc.

whats it supplied by a plug, timer etc ?

 

[kevplumb]

fuse will be in the fuse box or consumer unit

 

[hellobadger69]

It goes straight into the wall and has a switch like a light switch (which is on!). I took that off and there was no sign of a fuse, just wires coming in from the mains and then going out into the cable leading to the heater.

I have a load of trip switch on the wall and one is specifically labelled "hot water". Is it possible that it doesn't have fuses? If so should my next step be to replace the filament?

 

[BingoBongo]

check and see if you are getting power to the bloody thing

 

[hellobadger69]

kevplumb:

If the fuse had gone in the box you kindly posted, would it not be the case that the booster switch also wouldn't work?

 

[seco services]

check and see if you are getting power to the bloody thing

as said thats your only answer.

 

[hellobadger69]

check and see if you are getting power to the bloody thing

Yes, clicking the booster switch on works so it's just the bottom one. Should I replace the thermostat or the filament?

 

[seco services]

check whats faulty with a mult meter.

has the switch got a neon ?

 

[Hugh Jaleak]

Not sure if you have Economy 7 electricity? If so the bottom immersion could only be 'live' between 1 a.m. and 8 a.m., dont be fooled into thinking there's a supply issue until you check there's power there between those times.

Top immersion is likely to be a 'boost'this would be 'live' 24/7, in case you need to heat more water outside of the E7 hours.

 

[rojaca]

If chappy doesn't know what the blinking fuse looks like (no offense meant Andy) I have sneaking suspicion he may not have a multimeter

 

[seco services]

you can buy them.

 

[kevplumb]

having one and knowing how to use one tho