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  1. B

    Reliance inlet control valve 3/4.5 is overflowing

    My unvented domestic heating and hot water system incorporates a RWC CWIC 2000 3/4.5 bar pressure control which recently has begun to overflow periodically outside the house. The system is only 3 years old. I am not fully sure of the 5 RWC connections but the two regulated outlets feed the...
  2. C

    Replacing Grohe wireless shower control unit

    Hello I need to replace my Grohe Geotherm shower cubicle mounted control unit. Its around 17 years old but replacements seem to be available The main hot / cold water control unit is in the loft, I think its working ok How do I get the replacement cubicle control to connect to the loft unit...
  3. D

    OSO unvented hot water cylinder - Wi-Fi / programmable control

    Hi all, I have an OSO Direct 210 hit water cylinder installed in my home, with 2 switches (on/off; and boost). The boiler is for hot water only (rads are electric). In the 5 years that I’ve lived at this property, I’ve never once turned the boiler off; however, with soaring energy prices, I’m...
  4. P

    Replacing Thermostatic cartridge -temp control housing stuck

    I'm attempting to replace an ultra SASF2 – M thermostatic shower cartridge but, having removed the temperature control knob from the housing that incorporates the temperature 'stop' mechanism, I cannot pull this housing free from the rest of the assembly. I can see no circlip holding it in...
  5. J

    GROHE smart control tap

    Hi just purchased above tap it has 19mm flexi tails and want to fit to a standard 15mm isolation valve. Is there an adapter available as isolation valve is male type, so 19mm flexi needs to screw onto standard 15mm coupling. Any advice appreciated.
  6. G

    Control System for 3 zone Central heating?

    HI folks, this post is a follow up to my post relating to my single pipe heating system. In summary, I have a house built in 1980 (I bought it 2 years ago) that had a single pipe heating system but over the years there have been some changes made to the system that meant it didn't work. I have...
  7. notsure

    Grundfos Pump Domestic, Speed control

    I'm making my own replacement for a boilermate 2000 controler. I need more electical information on the pump so I can work out how to control the speed on it. does anyone know where I can find detailed electical info for this not just "on off" it looks like the original controler used PWM to...
  8. B

    Trevi CTV volume control handle removal

    I'm removing a Trevi CTV but struggling removing the volume control handle. The temperature control knob is removed but I can't see how to remove the volume control handle. It won't budge. Does it just clip off?I Any help would be appreciated Thanks
  9. J

    Heatslave 20/25 lockout not control unit or burner

    Hello!! I’ve got an old heatslave 20/25 running on kerosene. Came up with a lockout today. Tested everything I could. Symptoms, blower not starting. But… The burner runs and the boiler works if I bypass the “back to mainboard” loop for the blower motor live. To be specific, pin 4 pink wire from...
  10. D

    Is it possible to 'repair' a Hep2O (Wavin) UFH flow control?

    After balancing the flows, one of these blighters has started to drip very slowly from under the red cap. It feels loose to turn, so I suspect the seal around the spindle is to blame. It won't be 'worn' as such, as they don't get fiddled with for years, but this tiny adjustment was seemingly...
  11. E

    Setting temperature control on Heatmiser Slimline

    I have preformed a Factory Reset and re-calibrated the Thermostat. Can anyone tell me if I now Set the Temperature Control will that cover the total 24 hour period. I have tried to do this and then found the stat set at 5oC hotter - not a great idea in these cash-strapped times!!
  12. D

    Need help identifying shower control and cartridge?

    Single handle no markings any where. The seat rides on a cylinder and is concaved or valley shaped instead of flat. Been too every pro plumbing supply store and box store in town no help.
  13. I

    Honeywell Evohome hot water control for new boiler

    Looking for a quick bit of advice since I'm trying to wrap my head around what work I need done. Right now I have an old conventional boiler that heats my hot water tank. The water tank has manual open/shut valve so that I can only heat the water tank and not the heating. I'm replacing this...
  14. J

    Pump control to thermostat wiring

    Hi Installing single zone ufl with Grundfos pump/mixing valve and heatmiser thermostat - not crystal clear from the diagrams how the control connection to LR/LS should be wired (i.e. red on the pump control diagram) Any advice much appreciated!
  15. G

    How do I control my immersion heater?

    I have just bought a flat and the water is heated via an old UV Gold immersion heater system. A plumber friend of mine suggested I look for a timer to control it but I haven’t been able to find anything. I have no idea how to control the hot water! Does anyone have any suggestions? Pics...
  16. P

    House with two boilers - Smart heating control possible?

    Hi all - my prospective house I am buyig has been split effectively into two parts with Boiler 1 provided Heat/Water to the first few floors and Boiler 2 providing Heat/Water to the top floors. So two separate Primary and Secondary Circuits. Is there a Smart system that would enable unified...
    • PhilRey
    • Thread
    • boilers control heating house
    • Replies: 1
    • Forum: Boiler Advice Forum
  17. K

    Vaillant EcoFit Pure 835 Temperature Panel Control

    Hello all, Just moved into a house with a Vaillant EcoFit Pure 835 boiler that is 3-4 years old but the previous owner did not bother to register with Vaillant, so Vaillant says its not under warranty. I've noticed that despite setting the CH to 60 degrees on the boiler's control panel, the...
  18. Nickyd

    Boiler remote control

    Hi. I have a 15 year old Cosmogas Boiler in our house in Italy. It does 3 circuits: Hot water, Underfloor heating and normal radiator heating. I want to install a wifi controller to operate it remotely but not sure if this is possible. I currently have a Honeywell CR04 controller next to the...
  19. E

    No programmer to control radiators

    I recently moved into a new property which has a gas boiler and: (1) A hot water tank - this is controlled by a Hive timer programmer (all good); (2) Wet underfloor system on ground floor - this is controlled by Heatmiser thermostats (all good); and (3) Radiators on first floor and towel...
  20. C

    Old(ish) Grundfos proportional pressure control circulator

    I'm trying to set up a Honeywell DU145 ABV with an ALPHA 15-60 130 (Model number 59526443) and work out the speed setting. The pump has one variable dial (no C1/2/3 ect). Grundfos support have no info on the pump as its from circa 2001, so unable to help. Its running 5 rads in a small 2 bed...

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