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Is it possible to stop the leak or cut of the water supply until I can get someone to replace. I have cut off the supply from the isolation valves and tried to drain the system as I had before when i replaced the DHW flowswitch. But it continues to leak water. This boiler is a complete...

At first yes. But after glancing at the service manual I loosened it. the leak has now resumed. Before replacing the DHW flow switch I was running the washining machine which was drawing HW from the system. As a result the CH had become so hot, despite not actually being on, that I decided to...

that was the microswitch i replaced before. this time i replaced the dhw flowswitch. apart from the auto air vent leaking water. It works fine. I have started a new post for that problem. cheers.

After replacing the DHW flow switch yesterday, I find myself waking up to a leaking auto air vent. Water has been leaking out of the vent down onto the floor. After attempting to drain the system by shutting off the isolation valves and running the hot water taps. The air vent continued to...

problem finally solved. Replaced the dhw flow switch. Was a little tricky to get the hang of but managed to follow the service manual instructions I found on the web. Thanks to everyone who helped out. Hopefully this thread will benefit someone else in the future.

Oh no. Boiler just went bezerk. Started make a loud sort of overheating noise. That flames in the ignition window looked alot more ferociuos thatn usual. at that point i switch off at thje mains. It then sounded like there was some kind of leak. It has since calmed down and it appears the leak...

Thanks for the replies. The red light on the PCB does stay on constantly once the HW has been used. Sorry, I meant the ignition light keeps going out, sometimes while heating the HW as it did this morning, but more often once the boiler has been elft idol for some time. IF the porblem is...

Another observation is that the pilot light keep going out and eveytime I use the HW for showers, kitchen sink etc. Ihave to re-light the pilot before taking it off of standby.

Have replaced the microswitch, but sadly no joy. If anything the problem has got worse. Everytime the HW is used the CH becomes extremely hot. Both the HW and CH dials have been turned down. Is it possible I have installed the microswitch incorrectly? not screwed in tight enough perhaps...

thanks for the info. I do seem to remeber the wax diverter valve/capsule being replaced a couple of years ago. I would like to think they would not need replacing again for a little longer. I'll check the micro switch first. thanks again

New PCB was installed over xmas. It was also serviced shortly after. No work has been done on timer or roomstat in the 5 years we've been living with it. Thanks

Have been experiencing problems with my Puma 100. The CH has been turning on when its not supposed to and then getting unbearably hot. Not the best problem to have given the current weather we are having? The problem tends to occur after using the hot water. Does anyone have any suggestions...

Hi folks I have started to replace a close board fence in our garden and half way through I have encountered the problem that due to the roots of a neighbouring tree the panels sit rather unevenly on the ground with some sitting higher than others. I would like to level them out and am...

Thanks for your reply. I managed to find a local security company that repair and replace intercoms so will give them a go. Cheers

Hi there, I live in a converted flat and have a problem with my telephone intercom system. When someone buzzes through to my flat from outside. I am able to hear them throught the telephone handset in my flat. However they are not able to hear me when i speak into the handset. None of the...

It has recently had the PCB replaced and about a year ago the wax diverter valve was also replaced. It was only serviced last month after the I had replaced the PCB. I topped up the pressure last night to about 1.5 on the dial and still had enough pressure this morning. Unfortunatle i did not...

Am having a recurring problem with the pressure on my Puma 100 (e) boiler. It has happened on three occasions in the last week. The pressure seems to drop over night and I awake in the morning to a cold flat and no hot water. I top the pressure up to rectify the problem but am slighly...

Further update: I went to check the PCB for any lose fitting or loose connections and noticed as i removed the botton cover a small puddle. This I presume has been caused by a leak! The puddle was on the right hand side where the CH flow, CH return and saftey valve pipes enter the boiler and...

The only work I have done on the boiler is to replace the PCB. Will check the wire harness. Good shout. Have tried to contact some gasmen but I can't get anyone to take a look this side of xmas!!

This smell is not going anywhere and seems to be getting worse. I think I will replace the pump anyway and hopefully that will have some effect. Thanks for your help!