British Gas RD542i losing pressure

[abowker]

Hi,

I have a British Gas RD542i condensing combi, last week I emptied the system, tiled behind a radiator, put the rad back and filled the system. The radiator was on the first floor.

Yesterday I had no pressure in the system, so I checked around the radiator and nothing, no leaks, no signs on the ceilings of leaks.

This morning no pressure again. I lifted the floor in the kitchen where the boiler is and found a dead rat, an no leaks. After nearly heaving whilst moving the rat I placed the floor back. There is an amount of Hep plastic pipe in the heating system downstairs.

I have now checked every other radiator I can get under and it leave me with two in the lounge. The lounge has a solid oak floating floor which is T&G and ends and sides, so I would much rather not lift it up.

ANY ideas appreciated before I ruin my wooden floor.

 

[ChrisR]

WHat was the estimated time of death of the rat?
Seriously, they are known to gnaw through plastic pipes to get to water. You could pressure test your pipes , which would show a leak much faster than the combi gauge. (Hire the tester for a few pounds/day).
If you find a pressure drop, you'd probably want to expose what pipes you can easily, and cap them temporarily, to see where the leak is.

 

[gas4you]

Agree with Chris. You could as a cheap basic test pressurise system and close off ch isolating valves on boiler Leave for a couple of hours (if necessary) and check guage for pressure drop.

 

[Gasguru]

Seen rat damage several times