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hot water

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  1. E

    Heating switches

    Hi there I have an electrical water heater. It has two switches one main immersion one boost. The main one has gone hot and won't work :( can I just use the boost? Also it has a 13a plug in the main is that enough? Is that why its seized up? It went very hot beforehand:( ☹
  2. D

    2 port valve no hot water nest thermostat

    I have a y plan system with an additional two port valve because i the hot water water tank to unvented cyclinder, installed a nest thermostat but with the two port valve connected hot water doesnt work, when removed and it then works. How can i include the two port valve the system amd...
  3. M

    Help with hot water switches

    Living in a flat that only has water for around 2 hot water showers and a bit of washing up in the kitchen a day. There are 3 switches.. W/H CONTROLS.. W/H OFF PEAK... W/H ON PEAK.. and Grasslin Time clock.. I have tried to fiddle with the switches and keep on peak on but it doesnt help...
  4. M

    Electric Boiler Help!!

    Hi I've just started renting a new flat with my partner and we're having some energy problems. The boiler that we have is as I understand it, a pretty inefficient one - a Heatrae Sadia Electromax. The landlord and their engineers have been really pretty useless with helping with any of our...
  5. C

    Nest Thermostat - vacation home setting - hot water / heating

    Dear community, as the Pro Nest are too fare away from my place in Italy, I am seeking here for advice. The actual work will be done then by my local electrician - I am a DIY. Goal: I want to install a Nest 3rd generation learning thermostat (not the thermostat E) including heat link to my old...
  6. telectrix

    Landis & Gyr RWB 2 Channel Programmer Central Heating & Hot Water Timer Module

    HELP !!! i need to replace the above. priced at £225.00, client not happy. what i would like from esteemed experts in heating field is ... what can i replace with at sensible cost. connection wise, there is only L and N in and a T/E back to wiring centre in 3 and 4.
  7. S

    Diversity Factor for 3Ph instantaneous Hot Water in AS3000

    Hi, Just a question from AS3000 max demand diversity table C1 for instantaneous hot water. Will it be the same diversity regardless if it is 3Ph or 1Ph or higher current rating or less?
  8. O

    flexicom 24cx has Hot Water but no Central Heating

    my flexicom 24cx has Hot Water but no Central Heating. the problem seem to be the analogue switch selector. it looks as if it is stuck on the off position and won't move to the timer or on position. Is it that I do not know how to move it??
  9. R

    Wiring for the Australian market - hot water unit

    I purchased an Ecosmart 8 Instantaneous hot water system from Amazon and its really made for the North American market. The wiring says it need two active wires to make up 240 volt and no Neutral, Customer support have also told us this, however in Australia we have one red active wire and a...
  10. W

    Question. Signal for hot water not getting through

    Hi all, 
 After boosting the hot water for probably too long on our pulsacoil thermal storage, the circuit breaker was tripped and I saw that the timer unit had melted through. 
 I got a replacement unit and have installed it and flicked the circuit breaker switch back on. The water seems to be...
  11. B

    Hot water thermostat

    I am having trouble understanding a hot water thermostat which does not behave as expected. What does the "reset" button do, and is it necessary to use it after adjusting the temperature dial ?
  12. P

    Double immersion hot water tank.

    Dear all, Has anyone come accross a double immersion hot water tank. How did you supply it 2x16A circuits. Maybe a 32A circuit split into 2 with 2x 20A double pole switches. I have only come across singles before, so im trying to find the best solution as i only have 1 spare way at present.
  13. ETradesmen

    Y plan wiring / Hot water

    Good afternoon all, just a quicky. Ona Y plan system can anybody tell me why there is a switched live from the cylinder stat back to the programmer (Also connected to the grey on the MV)? Why does the programmer need to know that the cylinder has hit the required temperature? FYI I installed...
  14. M

    Need help wiring a Heatmiser RF Switch for heating and hot water control.

    Hi All, Im not an electrician, but i like to do things myself if possible, so i'm here to ask for some help in wiring a new RF switch for controlling my central heating. I already have a heatmiser system that controls my underfloor heating downstairs, but my upstairs rads and hot water are not...
  15. S

    Pulsacoil 2000 no hot water

    hey guys I have got to look at fault with a Pulsacoil 2000 pc185 model. The faults appears to be that the immersion heaters are both working but no hot water through the taps. I have being told they are getting 95v to the pump both L-N and L-E. Has anyone come across this issue and followed a...
  16. Gary Tollison

    Power cables and hot water pipes.

    Hello :) Just been doing some investigations into running power from the CU in the house out to my shed. I lifted the floorboards on the upstairs landing and found that power cables have been laid right next to the central heating water pipes. This can’t be safe, surely?
  17. sinistersnipe

    New home... domestic hot water linked to central heating?

    Hello, Moved into a new flat about 6 months ago, and now that the weather is getting warmer and we want to turn our heating off we've discovered a little hitch - it seems like domestic hot water and central heating aren't programmable separately. Specifically, if either the programmer or the...
  18. S

    Hot Water cylinder and 2x immersion heaters

    Apprentice electrician (coming towards the end of my 1st year) here and looking for some help and understanding. I have moved into my flat and I have both a normal CU running 24/7 and an off peak CU. The flat has no gas and all electric. I have a hot water cylinder which has 2 immersion...
  19. S

    Nest wiring help - not controlling boiler on/off unless hot water set to heat

    1st post and I’m not a heating engineer/electrician so apologies for lack of proper terminology. It’s a long story but in essence I had a new conventional boiler replace 2 years ago (Worcester Bosch 28i) and had issues with way heating engineer wired up the new rf thermostat. Decided to fit a...
  20. J

    Question about Economy 7 hot water cylinders

    Hi I recently replaced the bottom immersion on an economy 7 cylinder. After installing I tried to test the immersion using my multi meter. The fuse spur leading to the immersion has a time clock mounted on the face. I switched this to continuous, nothing. I removed the face of the fuse spur...

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