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Hi, My combi has been loosing pressure. The Engineer filled the system to 2.5 bar and then isolated the boiler from the rest of the system. He connected the condensation outlet to a rubber tube and fed it into a bucket. Over 5 hours the boiler lost pressure and water appeared in the bucket...

breezer, Thanks for the reply. I can put the alarm in engineer mode (at which point the tamper light comes on). Does that mean I can then disconnect the current PIR's without the alarm going off?

Hi, I want to change existing PIR's with ones that are not set off by the family cat. I know there are tamper circuits included in my system. Can I set the Alarm to not go off when I disconnect the current PIR's from the control panel or do I have to turn off the power supply, open the alarm...

widescreen, I had similar problems when I moved to my present house. All rads in the house were fed with 10mm pipe from a manifold fed with 22mm. The 2 large double radiators in the living room only heated up properly once other rads closed down. I powerflushed, removed and cleaned the...

I'm not a plumber but I did the same by using plastic push fit joints. I was doing it downstairs so the small amount of water that leaked (while installing) went under the floorboards. 1. Release the pressure on the system (i.e. drain but do not open bleed valves - just release the pressure)...

How do you persuade a condensing boiler to condense. I read a 'ravenheat' document suggesting an output temperature of 60-65 degrees is most efficient. Other articles I have read say they only condense when warming up and become less efficient when ticking over. Is there an optimum...

I had the same problem as yourself. The thermostat was not in the coldest part of the house. So British Gas put a TRV on the bypass rad, joined the feed and return pipes together to create a seperate bypass and turned the thermostat up high (my thermostat just controls temperature, all timers...

Thanks for all the replys. CrisR, My bolier is the British Gas ICC2 (not sure who manufactures it). The radiator that gets air in makes a noise that the others do not, although there is no visible water leak in the garage below. Is it possible for air to get into the system and the...

Hi, I have a sealed central heating system that loses pressure. I have to top up every 2 weeks. Is this excessive? Last year I had a bad leak and the engineer put a leak sealant in the system that didn't work. I eventually found the leak and it was fixed. Now the pressure is lost much more...