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Hi, just picked up some of this pipe from a local plumbing supplier. Did you use it? Were there any issues?

Interesting, how would you recommend cleaning these systems?

I meant the same thing happens with gas off, "little puff" is still there.

Electrodes do not spark. Except only on the rare occasions when it ignites for a short period.

Microbore system, was heavily sludged. I gathered it would need a flush any way so best start with that and see if it has a positive effect on the pump, if the issue is related to that. But mainly it was curiosity, that's how we all learn.

Hi all, I have power flushed a heating system. Boiler does not work (was not working prior to power flush). When demand is on, pump starts, I can feel a short Puff of air from the flue. Everything then stops and cycle restarts. Very occasionally burner ignites for a few seconds then goes back to...

That was the one! I changed parts wort £100's, and in the end it was a £25 part. Shows the value of knowledge and experience. Thanks everyone!

This switch is only activated when the hot water turns on. I can see the pin push out and press the switch. Boiler then boosts. Do you still think I should cut it?

Can't disconnect either side without cutting. This switch seems to be working as hot water works. Pump also runs.

The on on the pipe coming from burner and going to diverter.

Thermistor replaced, but still the same. Micro switch is activated by the vertical pin on the diverter which extends when boiler is turned on. So I assume micro switch is working fine. With microswitch disconnected, and boiler switched to water only. Fan and pump seem to run without any...

Good way to be sure. Ill let you know.

Sounds intresting....... Ill give it a go. Will keep you posted.

Correct.

Thanks for the suggestions, but m icroswitches seem to be working fine.

Microswitches seem to be working fine.

Hi All, I am hope someone can help with this. I have a Main Combi 24 he. Problem is heating is always on even with selector switch on water only. I have replaced the diverter valve and no change. Then replaced the pcb, still no change. I have also disconnected the thermostat as a precaution...

Message received guys. I'll look into a more conventional method. Thanks for replying.

Hi Freddie, I know there are a lot of people who do not think this is a good idea. And they have very good reasons for this. But after seeing my neighbours roof which has been sprayed over seven years ago I feel its worth me doing the same. My main question is can I use off the shelf expanding...

Hi I'm looking to spray the underside of my roof with spray on foam and found you can buy DIY kits. I'm wondering if there is any difference between these and standard expanding foam. Has anyone used the DIY kit or standard cans of foam to insulate a roof? Would be great to hear of any...