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hot water

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  1. B

    Boiler short cycling in system with hot water tank

    Issue with boiler short cycling in system with hot water tank. We have an ideal heating logic heat2 h15 boiler which feeds a hot water tank upstairs in the house. We have an issue where if the boiler isn’t set to 80c then the boiler will short cycle, the hot water tank thermostat is set at...
    • Boiler short cycling
    • Thread
    • boiler hot water system tank water water tank
    • Replies: 10
    • Forum: Boilers
  2. markmanningnz

    Hot water cold after weekend away

    Hi all, new to this forum and looking for a bit of advice please. Have been noticing recently some odd behaviour with our hot water system. If we go away for the weekend, leave Friday afternoon and back Sunday night, the hotwater is lukewarm at best up our return Sunday evening. I then need...
  3. K

    Vaillant ecofit pure hot water cuts out

    I have a Vaillant ecofit pure, we had it installed about 6 years ago so it's not an old boiler, a new pump was also fitted at the same time. Anyway, I have the hot water set to come on the morning but the last couple of days I've noticed after around 10mins it's cuts out, then after s couple of...
  4. S

    Greenstar CDI Classic - Hot Water Issue

    Evening All, Been having on and off issues with a Greenstar CDI classic Combi were the hot water is not heating up but only intermittently. Some days/ weeks it’s fine and works fine all of the time but on the odd occasion it’s been running cold in the following sequence. It fires up the boiler...
  5. Abram R

    URGENT Low Hot Water Pressure (Heatslave 25/32 External)

    Hi everyone, we have low hot water pressure in the entire house. It doesn’t appear to be a problem with the boiler. A Heatslave 25/32 External. The central heating works. The hot water runs for a moment before shutting off. Should I be clearing residue or air somewhere? Thank you, Abram
  6. A

    Low hot water pressure in entire house (Heatslave External 25/32)

    We have low hot water pressure in the entire house. Boiler is a Heatslave External 25/32, fuel in kerosene. The central heating is still working. Water initially heats up but soon flow ceases. The gauge pressure is correct. Do I need to release air or residue somewhere? Thank you.
  7. P

    Isolating hot water supply - indirect unvented cylinder system

    Hello, I am fitting new taps and a shower mixer in my en-suite and was looking to isolate the hot water pipes. I have an unvented indirect heating system (have attached some photos). I was wondering if the isolation valve that would shut off the water to the hot water taps is as circled in the...
  8. frasmotic

    Radiator comes on with hot water

    Hello all, I've just had a new radiator installed and it comes on with the heating as expected but then also came on when the hot water came on without the heating. Ours is a system boiler worcester greenstar 30cdi with an unvented cylinder. The new radiator has been hung in the w/c on the...
  9. M

    Heating issue but hot water works

    I've got a heating boiler which heats up the water in a tank located in a cupboard upstairs and then from there I get hot water & hearing. I get hot water ok but the heating doesn't come on when turning the thermostat to a higher temperature. I've got a 2 way motorized diverter valve which would...
  10. D

    Warm water in hot water header tank

    Hi all I have a problem with my hot water header tank getting warm water into it from the bottom of the header tank (not the hooked overflow/expansion pipe. Hence the header tank then reaches the overflow level and the overflow trickles out. I have changed the ball valve washers thinking it was...
  11. chris020

    Hot water cylinder circulator

    After some advice, i have recently had solar panels fitted and have an Eddi which uses the energy we generate to heat the cylinder using the immersion heater. Just wondering if there are any devices that can circulate the hot water in the cylinder so the immersion heater heats all the water...
  12. T

    Very very low hot water flow

    Hello, I’ve been doing my first refurbishment is a two bed flat with a bathroom and ensuite . Learnt a lot and been grateful for input’s especially from Shaun. The customer had ordered swan neck mixer taps for kitchen, bathroom and ensuite. On installing then all the hot water flow is none...
  13. P

    Combi boiler: my hot water has started running lukewarm.

    I have a Combi boiler and, a few minutes ago I turned on the hot tap in the kitchen and the water was far from hot. In fact, it was decidedly lukewarm. I checked the boiler and the tap icon was lit up, showing it was delivering hot water to the taps and I could hear the boiler running and the...
    • Phil the Fluter
    • Thread
    • boiler combi combi boiler hot water running water
    • Replies: 4
    • Forum: Boilers
  14. J

    Hot water element repaired without checking pressure?

    Hello, hoping someone can advise me. My boiler stopped working - no hot water or central heating. Called out a company who came and assessed the problem as being that the hot water element in the immersion tank needed replacing. (I don't know exactly what it is called as the company has still...
  15. J

    Is Pressure checked at same time of hot water cylinder repair

    Hello, hoping someone can advise me. My boiler stopped working - no hot water or central heating. Called out a company who came and assessed the problem as being that the hot water element in the immersion tank needed replacing. (I don't know exactly what it is called as the company has still...
    • Johnno1966
    • Thread
    • cylinder hot water pressure water water cylinder
    • Replies: 1
    • Forum: Air Sourced Heat Pumps
  16. J

    Direct Hot Water Hot Water Cylinder Repair

    Hello, hoping someone can advise me. My boiler stopped working - no hot water or central heating. Called out a company who came and assessed the problem as being that the hot water element in the immersion tank needed replacing. (I don't know exactly what it is called as the company has still...
    • Johno1966
    • Thread
    • cylinder hot water water water cylinder
    • Replies: 2
    • Forum: Air Sourced Heat Pumps
  17. S

    Shower dial issue hot water

    Hi am wondering if I can get some advice on this issue. Shower was working fine until Saturday when the dial only works when turned to cold water side and hot water side doesn't work. Other shower works fine and all taps have hot water coming out. Just wondering if get some on advice on what...
  18. G

    Radiators are hot with hot water

    I've just bought a 3-floor house with a gas boiler on the ground floor and hot water tank on the middle floor. When I switch on the hot water at the timer panel, it works but it also heats up all the radiators above ground floor. I have to close them individually to stop this. The rads aren't...
  19. N

    3 way valve not working got hot water no heating help

    I have an old Potterton suprima boiler with a hot water tank and pump. We have hot water but no heating, the light on the boiler is showing amber (no call to heat) I have been told that this is likely due to the 3 way valve or motor on it (Myson Power Extra). I am wondering whether to try and...
  20. H

    Constantly losing hot water pressure from Direct Vented Cylinder

    Hi, I have a hot water cylinder which feeds 3 outlets (kitchen sink, basin in bathroom & bathtap) which has never had very good pressure (probably because of the set-up) but last year got so feeble that a guy suggested fitting a pump alongside the cylinder. This can work fine but then all of a...
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