Hi all,
I bled the radiators earlier today, the pressure on the boiler dropped (think it's a combi) so I topped it up. Pressue gauge went up but when I try to switch it on, it doesn't ignite, makes a bit of noise and then does nothing. Have read that topping up pressure may introduce air into the system but I thought that was meant to resolve itself?
Any ideas?? I'm cold!!
2006-11-04 07:12:16 · 6 answers · asked by akusu 1 in Home & Garden ➔ Maintenance & Repairs
Thanks guys,
seems to be working again now, but not sure what happened to get it back on track!
2006-11-04 07:31:40 · update #1
Forget about pumping up expansion vessel you should only do that when boiler empty of water and to 1 bar pressure approx. One possible explanation is that your boiler has a flow switch that detects the flow of water round the system when pump comes on. If air was introduced into the boiler as a result of bleeding rads this flow switch would not pull on until air was released usually through automatic air vent on boiler or else by simply being pumped till it sits at the top of one of your radiators. If it is a combi boiler then some of these have bleed points that can be bled by trained personnel. But as you have found the problem usually sorts itself after a while.
2006-11-07 11:04:51 · answer #1 · answered by Anonymous · 0⤊ 0⤋
your heating system will have an automatic air vent or air scoop. you should check for a reset button on the front panel. when a boiler tries to fire and is unsuccessful, it usually trips (this is a safety feature) if your pumps aren't on, or the flow switch detects no flow, the gas valve is closed. (another safety feature) depending on what type of ignition is on your boiler, this is another avenue to explore. could be as simple as the spark ignite in the wrong position. could also be the thermocouple
2006-11-04 15:36:32 · answer #2 · answered by Anonymous · 0⤊ 0⤋
There should be a valve at the top of the boiler which a bike or foot pump should fit to.
Pump to repressurise the system until it becomes hard to pump.
Then try to relite.
(If you are working with a combi boiler)
2006-11-04 15:27:30 · answer #3 · answered by angie 5 · 0⤊ 0⤋
Any air that could enter the system is discharged through an automatic air vent incorporated in your boiler
2006-11-04 16:29:39 · answer #4 · answered by Anonymous · 0⤊ 0⤋
its nothing to do with presure try resetting the boiler (knock it off and tutn it back on) what make of a combi is it ?
2006-11-04 15:21:29 · answer #5 · answered by dalylorraine 3 · 0⤊ 0⤋
i had that on my old boiler..is yours old ..it may need replacing..best get a plumber to have a look.
2006-11-04 15:20:35 · answer #6 · answered by grumpcookie 6 · 0⤊ 0⤋