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alpha

  1. G

    Alpha CB24 problem

    Just been looking at the above for neighbour. Alternate light A & B flashing. Pump runs. Continuity through low water switch. Thermistors etc ok. APS open circuit. No power to fan. Thinking got to be the board? Thoughts people?
  2. A

    Drain point on Alpha Boiler

    Hi This may seem like a daft question, so I apologise up front. I need to change the temperature sensor on my CD20S Alpha Boiler. The procedure seems simple enough, shut the valves, drain the boiler, replace the sensor, re fill boiler. But, I have no idea how to get the drain point...
  3. MZR

    Alpha 2l pump

    Hi all got called out to service a boiler today asked customer if there's any problems ? Oh the heating not worked for 3 weeks ! So switched the heating on to the Icos 12he boiler fires up then burner goes out and burner light flashes, I went to check the pump to find the new grind dos alpha2l...
  4. B

    A new grundfos alpha 2 15 / 60

    Hi Guy's I currently have a grundfos 15 / 60 selectric central heating pump that is laid flat to the floor , so workng horizontaly and on the c/h return ........ now, as it is working fine and has been for seven years ( and longer ) do you know if the new grundfos pumps ( Alpha 2)...
  5. R

    Loft insulation over an alpha 2l pump?

    Our hot water tank and CH pump is in the loft (and will remain there for sometime), I have insulated all the pipe work that I can. Most of the pipe work is under the loft insulation that also helps. Now to the alpha 2l pump, should I put loft insulation over it, if so how much? (Or will its...
  6. N

    Alpha cb24 problem

    Hi got a problem with an alpha cb24, I have no hot water at all even when I've set the control knob to hot water only. How do I check to see if it's the flow switch or diverted valve or diaphragm. is Alphaman about! thanks
  7. N

    Alpha cb24

    Hi I've got an Alpha cb24. Heating works find but no hot water. Thought it might be flow switch but when I set the boiler to hot water only and I unclip the switch off the pipe and manually press it the boiler fires up but still no hot water so I think it may be the diaphragm ? Any thoughts...
  8. R

    alpha flues

    i have a job to look at friday to move/swing a flue from one wall to allow conservatory, to another wall. i presume the boiler is in the corner of house. like most, i know boshyte about these boilers but i was wondering if anyone knows roughly how much the flueing would cost in parts assuming...
  9. C

    Alpha CB24 Heating issues.....need help!

    Hello all, My first post so go easy on me! I have been to a customers today to replace a diverter valve on an Alpha cb24, the valve has done its job as DHW works now without having to select heating mode. My dilemma now is that when I turn the heating on, it doesn't seem to circulate very...
  10. B

    Alpha c 25he

    Been back to this today with aps but one supplied was faulty .boiler works with inner cover off put it back on and it stops .cleaned the Venturi and checked the flue and aps tubes .removed the aps tube from the aps and turned boiler on fan runs but does not to be much suction on the tube it will...
  11. B

    Problem refitting Alpha CB28 diverter valve

    Hi, I have been trying to fit a replacement diverter valve this afternoon. Deep joy. i can get it in place, all the threaded unions seat up nicely, but the pipe with o ring that pushes down into a vertical receiver pipe is weeping? Tried packing it with grease, but no joy and don't want to...
  12. B

    alpha in tec 2

    saw the new alpha intec that is out soon - it looks a good boiler the heat exchanger looks like the one on the ideal logic .my only concern is the gas valve and pcb look very like the one on the baxi duotec GA can anyone confirm this is the same gas valve and software
  13. T

    Alpha cd25c boiler problem

    Hot water problem on my alpha cd25c boiler. Burner light C lights for 15 seconds then goes out for 15 seconds. Then on for 15 seconds so on and so on. I have replaced the flow switch and temp sensor. Does anyone have any ideas. cheers :sad:
  14. R

    Strange Alpha cd32c problem...

    Hi everyone, So last night my friends Alpha decided to go nuts. He said it just randomly came on and he had to turn the supply off. I went for a quick five minute look and discovered he has been needing to turn his heating on to get any hot water. But the heating works fine and so does his...
  15. M

    Alpha 240

    Hi All ive been out to an Alpha 240p combi today. hot water is only lukewarm, but rads start getting warm when hot water is on. central heating is ok. plate exchanger doesnt feel as warm as it should. which part of the diverter valve do you normally replace? im wondering whether its worth...
  16. S

    Alpha Range with Periscope Burners

    I have worked on several of the newer Alphas but never an older one (96) with these burners. The previous service records show that they have had problems getting acceptable readings, with both burners being set at between 6 and 8% CO2 and 120-260ppm of CO. Before I get stuck into it, does...
  17. G

    baxi parts fit alpha boilers?

    hi guys am i right in thinking some baxi parts fit alpha boilers. I have another 240e which needs new phex. Price for genuine alpha part is ridiculous. Does the 105 phex fit these boilers?
  18. D

    Alpha he cb25 flashing a and b same time

    hi all just after second opinion has anyone has a fault with a and b flashing at same time. only thing working is pump. checked continunity across low water pressure switch, continunity on over heat stat and fan stat. checked air pressure switch isnt stuck ie with no demand theres no...
  19. G

    Alpha 240e hot water problem

    went to see above boiler at customers. Only getting luke warm DHW, central heating fine. When call for DHW spindle moves freely and switches fine but getting flow down heating. Am i right in thinking diaphragm is ok as spindle is moving fine?
  20. E

    Alpha Easystat wireless controller issue? heating coming on randomly

    hiya, i have a combi boiler installed (system about 3 years old) with an easystat wireless controller. I have always had it set on an auto programme which i have set to come on and off throughout the day if the temp drops below certain temps at certain times. i've never changed this programme...
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