It's important to make sure everything is okay with your boiler. That means that it turns on and works just fine when you want it to, and in the same way it should also turn off when it needs to be turned off.
Boilers not turning off might not be a problem in your home but there certainly are some homeowners who struggle with this issue. This issue needs to be fixed right away because boilers that won't turn off could increase the risk of overheating in your home. Not only that, but you'll also find yourself paying more since your boiler won't stop running.
You can check your boiler's thermostat and see if anything changes when you try to turn the temperature levels down. If nothing happens, you should contact an expert to check the thermostat. Hiring an expert offers many advantages. Your heating system professional will also look for other areas that could be causing the issue such as the valves, the programmer, and the intricate wiring inside the boiler. These areas require the skill of an expert that's why it's best to visit the website of I-Delta to get connected with a professional who will help you.
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Ive just resolved this issue on my own boiler...... Its the programmer ,replace it as the micro switch has gone , when it comes on the lights only come on the internal switch does not ,so no sognal to boiler , replace programmer
It could be dyslexia, but I think you want to know what may be wrong with your boiler in this case! This is a VERY old design. The diaphragm is on the water section, this operates a switch to turn ON the pump, and a further device causes the diverter valve to divert boiler water from CH duty to HW duty. From your description it appears that the boiler is shutting down on internal boiler water temperature (too high), your 'briefly too hot' HW symptom may be caused either by the boiler side of the secondary heat exchanger being blocked/caked in sludge, OR the DHW side of it being scaled. Either way a new or replacement (descaled) secondary heat exchanger MAY inprove things. It's not easy on these old clunk-pots, and EVERY disturbed seal will subsequently leak, so get a good supply of o-rings and fibre seals before you start ("you" being the competant fitter you employ)
A pressure switch has many functions depending on the application. they are used in boilers to sense that there is enough water in the boiler. furnaces have them to insure the vent fan is working. pool boilers use them to sense that pumps are flowing water through the boiler. does this help?
Hi I am thinking what your tryig to say is the air pressure switch?
you can check this switch to see if the boiler works by removing one of the sensing tubes from it & by sucking on or blowing as this willactivate the switch you dont have to do it very hard, just gently as you will hear the switch clicking, if the boiler does fire when you click, in order for it to continue to ignite you may have to fold over the tube, when you release it the boiler should stop.if it does work then you will have to change the air pressure switch, but remember this can only be done by a Corgi Engineer