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  1. N

    Alpha HE CB33 Problems!

    Hi, I've done a bit on these boilers before but this one is being a right pain. AAV has been changed due to it firing water everywhere, PCB also change it got a little wet! Diaphragm changed due to no hot water diaphragm was knackered to say the least. so Boiler fires up on heating works...
  2. C

    alpha cd28c hot water problem

    I am working on a alpha cd28c combi, i recently changed the diverter valve as the tennant had very little hot water and when the hot water tap was running the boiler would stay on telling me its not a blockage in plate heat exchanger and not overheating. it was send the hot water down the...
  3. G

    Alpha combi boilers

    Went on their training course last year and all seems good but still not fitted any. What is your opinion on them guys? Also do you think the commissioning of them is a bit long winded? I am currently fitting Logic plus and Vaillant boilers but Alpha prices are looking quite good for the low end...
    • gassman
    • Thread
    • alpha boilers combi
    • Replies: 7
    • Forum: Boilers
  4. S

    Any experience with Glow-worm or and Alpha boilers?

    Just had some combi boiler quotes in, quoting for Glow-Worm and Alpha boilers. I've never heard of either and wondered if anyone had any experience good or bad.
    • simbob
    • Thread
    • alpha boilers experience
    • Replies: 7
    • Forum: Boilers
  5. L

    Alpha hecb33 not firing up

    Hiya guys I had a issue with diverter valve on my combi so I replaced the diaphragm in it. Trouble is my boiler is not firing up now when I call hot water or heating. I am thinking it could be flow switch, if so any way I can test it
  6. L

    Alpha HECB25 Intermittent Fault

    Hi there I was hoping to get some advice about my boiler, Occasionally when the CH tries to come on or I run the hot water the boiler will start the fan and then the red 'A' light will be flashing and the yellow B light will stay out. The fan will run for about a minute then it remains off...
  7. N

    Alpha CB24x intermittently switching off, flashing red A light, requiring resetting.

    Hi Our 10 year old Alpha CB 24x boiler, which has worked fine so far !! started tripping off in October. Following instructions, we reset, then called our original installers to service the boiler - explaining the issue... After 4 visits by 3 engineers (long story...), whilst we had a service...
  8. M

    alpha he cb25 no power no lights

    hi hope someone can help me. my bolier alpha he cb25 has stopped working. no hot water no heating. there are no lights at all. its as if its no power just dead. followed trouble shooting in manual leads to replace pcb???? checked all fuses all fine any help would be great to close to christmas
  9. U

    alpha he cb 25 no power or lights

    hi hope someone can help me. my bolier alpha he cb25 has stopped working. no hot water no heating. there are no lights at all. its as if its no power just dead. followed trouble shooting in manual leads to replace pcb???? any help would be great to close to christmas
  10. D

    Puzzled by a breakdown- Alpha CD35C

    Hello all. i was called out to an Alpha CD35C. Boiler was completely dead when I arrived. The job sheet said 'boiler not resetting' The 2 Amp fast blow fuse had gone, I replaced the fuse. The boiler ran however the PCB was actually smoking! I made some other checks and observations then...
  11. hammers4spanner

    Alpha cb 50

    Got three leaks on this boiler all around the flow valve and pipe coming out the boiler looks a right headache as well . Not sure its worth the hassle of repairing anyone with experience of alphas opinions would be welcome.
  12. W

    Alpha cb28x red led burner light failure

    Hi can someone give me some advice please, I've got 5-6 year old alpha cb28x. I've sent the pcb away recently as the fan was failing to start and came back repaired and worked fine. but now keep getting a solid red led, failed to light, I've got 230v from the gas valve terminals but the valve is...
  13. A

    Alpha intec 28x boiler, Heating not working, hot water OK

    Hi We have an alpha intec 28x boiler with remote thermostat. The thermostat is showing the heating is on but the display on the boiler says it not. Its very intermittent though, The boiler will click like the heating is about to come on but nothing happens, sometimes it will stay on for a...
    • Avinitlarge
    • Thread
    • alpha boiler heating hot water water
    • Replies: 1
    • Forum: Boilers
  14. S

    Alpha Remote Thermostat

    Hi I have an alpha intec 28x boiler with remote thermostat. The thermostat is now showjng an error 90c4 08 and will not link wirelessly to the.boiler so i am manually having to turn the heating on. Need help asap
  15. M

    alpha he cb25

    Just after a bit of technical advice on the alpha cb25. one of my customers contacted with a boiler fault, the same fault is happening on both heating and hot water. when there is a demand on the heating side the boiler kicks in, fan and pump both seem to run fine, boiler then fires up for 1 or...
  16. B

    Alpha cb 24 x

    Come across this today it's the bottom connection on the diverter is it in 2 parts. And what are they like to do
  17. A

    Alpha 240p first no HW now nothing. Parts changed.

    Hi guys I got asked to go and have a look at a job yesterday for the above boiler. At first they had no HW so someone went and put in a new plate heat exchanger. Still didn't work, someone went and changed diverter valve (i think). Still didn't work, they ordered a PCB and lucky me got told...
  18. S

    Alpha Intec 34C vs Intec2 35CE

    Hi, I have just ordered the 34C to use with the flowsmart system but now see that the new Intec2 35CE model has been released and claims marginal improvements in efficiency and heat up time. I have not yet received the boiler and will have my 14 day cooling off period when I do. Do you think it...
  19. G

    Alpha CB25 mystery of the vanishing hot water flow

    Hi chaps, would appreciate anyone could help me solve this, because this boiler is doing my head in. Alpha (piece of £$%&) CB25 combi. I've replaced the plate heat exchanger 3 weeks ago. Since then the hot water pressure has gradually reduced to a mere trickle. So you would think a block in the...
  20. C

    Alpha cb28 boiler issues

    Hi, over the past few weeks I have been having issues with a 1 second flashing b light and that turns to a red a light coming on, i need to turn power off and on constantly just to get hot water for a shower, looking online it says it's the temperature sensor but people have said there could be...
    • Ceolalba
    • Thread
    • alpha boiler
    • Replies: 4
    • Forum: Boilers
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