Boiler and Broadband Problem

Suppressor in the pump?

Is there a lot of noise on the TV picture too when this happens? If so, it could be sluggish contacts on either the boiler or room thermostat - causing a lot of noise on the mains. [The contacts are supposed to snap open and closed very quickly - but sometimes they dither.] Either replace the offending stat - or get a suppressor for it.

Probably the thermostat is getting tired and does not click on and off sharply. This is probably a precursor to the thermostat failing entirely so you might as well replace it.

Have you got a wireless room stat and router?

Different frequency ranges entirely...

It might not stop 'cross talk' though, especially if a source and receiver are unusually close IYSWIM?

Possible, although a wireless room thermostat turns the transmitter on very briefly and occasionally to conserve the battery so it doesn't seem that likely that it would affect a WiFi router.

How do these new-fangled boilers light the gas? Mine has a pilot light but presumably the "economy" type have to use high voltage spark ignition - would be a good transmitter.

Geo

Sorry for the delay in replying.

Could I replace the boiler thermostat myself - easily? If it is the stat then its the boiler one as this happens when Ive just got the hotwater on.

You know Im tempted to get rid of the thing and replace it with a combi, get rid of the electric shower as well and just have the house looking a mess for a few weeks whilst all of the plumbing goes on. I still havent sorted out my air in the system problem (raised last winter) and this years winter is fast approaching.

Cheers,

CM.

It's not usually too difficult. The stat has some electrical connections - and also a copper capillary tube with a bulb on the end which goes into a housing in the boiler to sense the temperature. So it's a case of removing the bulb from its housing, disconnecting the wires, unbolting the stat body - then reversing that lot with the new one, taking care not to damage the capillary tube.

Perhaps you should think about keeping the electric shower either during the work or even for an backup system.