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Recent content by rsk289

  1. R

    Frost thermostat problems

    Thanks, I'll give that a go.
  2. R

    Frost thermostat problems

    Hmm. I don't seem to be able to find a Honeywell frost thermostat for a no-volt system. The Calorex units require no-volt switching and 2 wire connections. There's not much choice for this spec, I'm finding. Anybody got any ideas?
  3. R

    Frost thermostat problems

    Thanks - I always wonder about control devices that cost under a tenner. I'll have a look at Honeywell, it'll save me a lot more than the cost of a couple of thermostats and maybe stop 'management' complaining about the electricity bills.
  4. R

    Frost thermostat problems

    Sorry, this is a slightly unconventional question... I have two wall-mounted Calorex dehumidifiers in my garage/workshop. These have fan heaters (2kw, I believe) built-in to them. The idea is to stop the dehumidifiers from freezing up. They were supplied with very cheap 2-wire thermostats...
  5. R

    Vaillant boiler pump leaking

    I seem to remember there was some issue with the length of the flue to get high enough. Engineer's coming on Monday, I can now see that it's the small air vent on top of the pump that's leaking. Don't know if the plastic cap should be screwed down tight? It's not at the moment.
  6. R

    Vaillant boiler pump leaking

    Sure - flue and extractor fan inlet next to it. Passageway belongs to neighbour.
  7. R

    Vaillant boiler pump leaking

    Thanks guys, first pic shows the installation - the flue goes directly out of the wall on the left which is the boundary with next door. 20 yrs ago this was OK, now not, apparently. The second pic shows the space above the boiler - the flue is directly below the first floor landing level shown...
  8. R

    Vaillant boiler pump leaking

    I have a Vaillant Thermocompact boiler which is getting on for 20 years old, and yesterday the pump started leaking with a steady drip from the bottom of the housing. I have been advised that we can't fit a replacement boiler in this position in the house because of the flue exit on to next...
  9. R

    Problem with rising main tap connections

    Thanks both, a bit of peace of mind's always helpful. We're needing a Megaflo service so I'll ask our independent guy to replace the PRV at some stage as it appears to have seized too. Hopefully he can re-orientate the new one so I can open the lever valve fully!
  10. R

    Problem with rising main tap connections

    Our old mains water tap seized, so we had it replaced a couple of days ago. The original was brass, connected directly to the blue supply pipe, with a smaller outlet going to a pressure control valve with a pressure gauge. The replacement is as shown in the photo. About 40 minutes after it was...
  11. R

    Dudley flush problem

    Thanks, that's helpful - but when it fails the pump motor runs for a short time (at the normal speed, but for a shorter time than usual). Whilst it's running there's a 'thump' and it just stops dead. The red LED comes on and stays on for the normal time, even though the (still full) cistern...
  12. R

    Dudley flush problem

    I have a Dudley concealed cistern fitted with an Electroflo flush using battery power. The first 'blue' (long) flush of the day, when it's been inactive during the night, often doesn't work properly - the blue light comes on, the motor runs - then there's a 'thump' and everything stops. If I...
  13. R

    Setting pump speed for UFH

    Thanks for the advice - however since posting I think I have another problem as all the pump indicator lights have gone out and it is not running. Pressing the indicator button won't produce any lights so it looks as though the new pump has failed after just 12 hours of running. Time to call...
  14. R

    Setting pump speed for UFH

    I've just had a new UFH system fitted with a Reliance Thermomix control pack, which incorporates a UPM3 Auto pump. I'm wondering how you arrive at the best setting for the pump - it is providing flow to 6 separate pipe runs, designed as two zones controlled by wireless thermostats. I feel it...
  15. R

    Niagara valve problem?

    Yes, water level's OK. It's working fine apart from the faint trickle of water.

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