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alpha

Alpha (uppercase Α, lowercase α; Ancient Greek: ἄλφα, álpha, or Greek: άλφα, romanized: álfa) is the first letter of the Greek alphabet. In the system of Greek numerals, it has a value of one. Alpha is derived from the Phoenician letter aleph , which is the West Semitic word for "ox". Letters that arose from alpha include the Latin letter A and the Cyrillic letter А.

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  1. N

    Grundfos Alpha v UPS sorry cross post

    Hello, I have just had my 15year old Grundfos UPS 15 50 replaced with an Alpha 1 and the Alpha 1 seems quite a bit noisier than the the old one, I have a new UPS3 sitting in a box and I am thinking of changing the Alpha 1 for the UPS3 if I understand it correctly, Alpha1 v UPS3 1. Alpha 1 is...
  2. Drak911

    Alpha 2 15-60-130 pump

    Hi we have a Alpha 2 15-60-130 central heating pump fitted. We need a bit more heat from 12 rads. I’m confused about the settings as the Auto Adapt was pulling 14w which is not enough. I have now set the right side led to position 4 and it pulls 25w. Does anyone know what the pump should run at...
  3. S

    New boiler fitted Alpha E-Tec 28.

    As above new boiler fitted and new Hive, Hive is set up correctly and works as it should but when it comes to scheduling on/off times via Hive the boiler doesn't cooperate, the radiators are set at 50 on the boiler but when the temp drops below this on the boiler it fires up. Now my way of...
  4. H

    Switch off Alpha weather prod sensor.

    I have a Alpha weather prod I wish to install. Can you put an on off switch in between the sensor pod and Alpha boiler. If yes what type of switch do I need. Thankyou
  5. joealden

    How do I re-pressurize my Alpha CD35C boiler?

    Hi there, First of all, apologies for the quality of the attached image - unfortunately the access to the underside of the boiler is quite tight, so I had to stitch a few pictures together to be able to show it all! As mentioned in the title, I'm wondering how I would go about re-pressuring my...
  6. J

    Seals for an alpha 240p

    Hello I’ve just has an annual service done on my boiler and the engineer has said the seals are getting hard and need replaced, but after going away to find the part has said he can’t fix it, does this sound right? Boiler looks on the older side but surely seals aren’t had to replace? If I can’t...
  7. B

    alpha Intec2 E43 problem

    Hi Called out to a Alpha Intec 2 with e43 code, reset boiler it fine for a few days then comes back .It had a new gas valve fitted a year ago by Alpha out of warranty now Can anyone help with this thanks BigBobby
  8. S

    Alpha boilers and nest thermostat

    I have no thermostat on my alpha evoke 28 boiler I bought a nest a0063 but not sure which wires go from where on boiler to where on my thermostat which are as follows Y1. Aircon (not got) G fan (not got) R power W1 heat C common Ao* heat pump My boiler has various various empty chambers
  9. J

    Grundfos Replacement UPS3 V Alpha 1

    I want to replace the three 11 year old Grundfos UPS 15-60 130 pumps as a part of trying to reduce the electricity consumption of my heating/DHW system. The pumps circulate the water in i) the UFH, ii) the first floor rads and iii) the mains pressure DHW cylinder primary circuit. The Grundfos...
  10. T

    Alpha boiler power cut

    Had a power cut now alpha gas saver 34c boiler is dead. Any ideas please
  11. S

    Unable to top up pressure on Alpha CD35C Combi Boiler

    The central heating circuit is slightly low on pressure so I tried to top it up with the built in filling loop. Nothing happens. No mains water gets pushed into the heating return pipe. I disconnected the filling loop on the heating side to test the double-check valve, and mains water comes...
  12. king of pipes

    Alpha 24cdr heat only

    Anyone been to one of these this one's playing up ??
  13. 7

    Smart Thermostat For Alpha Evoke 28 Combi Boiler

    Hi everyone, I hope you may be able to offer some advice and/or opinions. I'd really like to install a smart thermostat for our boiler. Due to health conditions, I myself am particularly sensitive to temperature changes and have poor mobility, and therefore find the current traditional dial...
  14. T

    Boiler swap. INTEC 40GS to Worcester Greenstar 32CDi Compact Combi

    Dear Forum members, Hope that you are all doing well! We are thinking of moving our existing boiler from its cupboard to a bathroom corner to free up some space A local specialist has recommended that we install a smaller boiler, so that it fits into the bathroom nicely My goal is to ensure...
  15. A

    alpha e tec 28 or worcester greenstar i 30

    Hi folks, my 1999 combi boiler is in need of replacing. We just moved into the end terrace 3 bedroom house October 2020. We only have 1 bathroom with fitted shower only, no bath. In relation to both options, I am edging towards the Alph which comes with a 10 year warranty, compared to the 12...
  16. B

    Alpha Flame Sensing Electrode

    Alpha Flame Sensing Electrode part number 3.025192 required asap in Worcestershire. There is a supply issue it appears due to COVID. Please get in touch if you have this part. Many thanks
  17. F

    URGENT How can we repressurize this Alpha CD28C boiler please?

    My daughter lives in the Brighton area and has recently moved into a rental property. The boiler is showing alternating flashing A and B indicators which tells us that the boiler needs repressurizing. However, looking at the underside, there seem to be taps missing from the valves either side...
  18. H

    Called out to fault on Alpha HE 33. New Fan Installed.

    Hi guys. First post on here. Called out to fault on Alpha HE 33. Fast blow fuse found to have blown. Faulty fan found to be problem. New fan installed and tested. Four days later and a call from customer to say boiler not working again. fast blow fuse found to have gone again. Replaced and gone...
  19. P

    Alpha CB25 pressure rise problem

    Hello everyone, I have a problem with our Alpha CB25 boiler. Problem is little bit complicated to me. We have had a problem with hot water this summer. I changed two parts like heat exchanger and I refurberd divert valve. We always have problem with low pressure I have to fill it up the...
  20. C

    Problem with Alpha E-Tec 28

    Hello, I have a Alpha etec 28 boiler, and getting the Error10 signal at the moment. I know I have to repressurise but I can't find the right valves to to this. Can anyone help please?? I have opened the cupboard beneath the boiler too but not sure what to touch. Thanks!
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