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Hi, I am about to have an extension built to my house. The extension will add a gable end to the one side of the house. The roof tiles are original and dont have felt under them. My question is if I get the whole roof done can the tiles be re-used and felt is added under neath or do they...

Hi, I am building an extension and adding an ensuite bathroom. I currently have a potterton performa 28i feed my rads and the bathroom. The existing bathroom has a shower mixer valve inside a separte shower. What is the best way to connect into the system so I can feed a 2nd shower in the...

Thanks very much - I will look them up

Hi, I am about to embark on building a new garage and an extension to my house. I plan to do some of the work myself with support from builders where required. Can anyone recommend some reference books that i could get hold of? Thanks in advance

ok - i am just waiting the parts to be delivered - I will letyou know how I got on.

Thanks for that - that will be useful. Would you have a sequence for removal of the diverter - which joint to undo first etc. I still dont know how I am going to undo the 3/4 nut holding the bypass pipe to the Diverter valve - any ideas? Have I just got to get a stubby spanner in there or...

Has anyone changed a diverter on a performa 28i? Can anyone recommend a sequence of removal - plus any special tools used?

What is the knack? - I was going to drain the boiler using the drain tap and also drain the rads down a bit so there isnt any water nearthe boiler. What else can I do apart from having loads of towels at the ready? Another question - there is a connection into the back of the diverter valve...

I am not touching the system flow switch! Did you see my reply to you on my other thread? I did remove the diverter motor but still had heat going down the feed pipe when HW tap was open. I also checked the HW microswitch and this too was ok. I am now going to get a new diverter valve - is...

Thanks ChrisR - Agile has told me to leave the CH pressure diaphram alone as it does have anyhting to do with my problem. My diverter is sticking and when on HW alot of the heat is going down the CH feed pipe instead of going down the HW pipe. I have removed the actuator motor from the top of...

I removed the actuator motor from the diverter and then turned on the HW taps the CH feed pipe got that hot that I couldnt hold my finger on it - the HW outlet pipe on the other hand didnt feel that hot I could hold my finger on it. So does this mean the diverter is stuck solid and needs...

how can i test HW microswitch on the diverter? As I have said before it hasnt got any droplets on it. Can i test with mulimeter? If i remove the microswitch and watch the pin what is the correct sequence of operation when HW is called for? When you used to refer to gland what did you mean...

yes i did try to change the ch pressure diffdiaphram but gave up when the water wouldnt stop coming out. I now now that i have to use towels and wait until the water stops

I had turned the cold supply to the boiler off. - I have tried again today - turned off the feed and return valves and the cold water supply - opened all the taps in the house but nothing comes out???? - any ideas

Ok I take your point - I am anovice to boilers but justwanted to check the diaphram in the CH pressure diff to make sure. When I isolated the boiler from feed and return to drain the system and turned off the mains water, I turned on the hot taps to drain the hot water out but nothing comes...

I have another problem with a potty performa 28i. The diverter is not operating properly sending heat down the feed pipe even when hot water neon is on. My question is should I replace the whole valve or just the operating head and replace the CH pressure diff. rubber diaphram?

i thought that when metwith thewater so went down and opened taps but thisdidnt stop the water. I have a problem with a sticking diverter valve could this be the problem?

Hi, I tried to drain my combi's primary circuit yesterday by isolating the feed and return, turning off main water supply and then opening drain tap. Once the drain stopped I tried to remove the CH pressure diff cover plate to replace the diaphram but was met with loads of water that would...

To be honest I couldnt really say -I presume I have to remove the microswitch to see this? Today when CH is called for the Hotwater icon comes on but the heat is going to the heating flow pipe. I wanted to check the CH pressure diaphram so I isolated the boiler by turning off feed and...

I have just opened up the boiler and checked the microswitch - I cannot find any traces of water droplets or crustydeposits. I even took the lid of the black box but still not deposits anywhere. When you say replace gland do you mean on the differential or microswitch? But.... The sensing...