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  1. R

    Warmflow B1 Thermostat Control

    The boiler is a Warmflow B1 Oil CH Boiler. Does the thermostat fail in an open state or closed state with a hard failure? Can they simply start to malfunction and not control the temperature correctly in a soft fail situation? The boiler is working but the homeowner says it's running all the...
  2. J

    Warmflow 70/90 Bluebird recommended nozzle and angle

    installed a warmflow 70/90 bluebird boiler with a 0.55 x 80 degree nozzle. boiler is only heating 5 radiators in a small 2 bed house. what is the recommended nozzle size and pitch for this boiler? Can I change the nozzle size and pitch to use less oil as the flame is hitting the back wall of the...
  3. M

    Opinion/experience with Warmflow Boilers?

    Wanting to know people's opinion on these oil boilers? Particularly the heat exchanger as to reliability and build quality. Some very poor reviews on Trustpilot and other sites. Are they worth avoiding at all costs?
  4. E

    Warmflow B70 he condensing

    Just had a warmflow b70he 21kw oil fueled installed. I haven't had a condensing boiler before so please excuse the possible stupid questions. I was under impression that when the heating is on you shouldn't here the boiler firing and there shouldn't be an almost continual flume of vapour out of...
  5. B

    Warmflow combi water pressure problem

    Hi i wonder if anybody can help ? I drained down my warmflow boiler for a new rad , now its needs 3 bar pressure to trigging boiler back into life but my mains is only 2.5 ! Any ideas
  6. R

    Pressure loss warmflow

    Hi all first post in this forum and hopefully someone can advise. I have a warmflow external oil Combi boiler approx 4 years old. Problem I'm having is this time of year when we start using the heating I am intermittently loosing all pressure on boiler and needing to refill, it has worked fine...
  7. blundell

    Is this boiler condensate pipe trap past its best? ('07 Warmflow Utility US70HE System Oil Boiler)

    Hi! I've been chasing the smell under our stairs/cellar for so long and have had many things fixed one by one, the smell still remains, next investigation is the boiler! They say a picture is worth a 1000 words. Here's 4: The boiler is a condensing boiler, I think it's a "Warmflow Utility...
  8. G

    Warmflow Utility 90 HE Combi Leaking and losing pressure...

    Our not so trusty but very efficient Warmflow is currently incontinent! Over the past 10 years, I've tightened all the fittings, installed new fibre washers ad nauseum, replaced the expansion tank, the flow meter and just this week the PRV. The boiler is losing water somewhere but looking at...
  9. A

    warmflow B70 HE not condensing.......

    hi fellas - installed a warmflow B70 HE yesterday but cannot get it into condensing mode - going back tomorrow and will possibly downsize the nozzle and oil pump pressure and circulation pump speed - any other suggestions?
  10. S

    High limit reset Warmflow 70/90 deluxe

    Hi, I have a Warmflow 70/90 deluxe oil boiler (approx. 23 years old) and the high limit thermostat has tripped (I probably had the boiler stay turned up too high). The orange light is on but I can’t seem to locate the reset button on this model anywhere. If anyone can point me in the right...
  11. S

    Green Pak 90 WarmFlow Oil Boiler

    Good afternoon everyone, I hope you're all going to make the most of the sunshine today. For those of you in front of computers, and more technically able that me, I have a few question that if any of you could help with it would be greatly appreciated. I have the above boiler, and yesterday...
  12. Gazzt

    Warmflow combi hot water intermittent

    Hi I have a fault on a warmflow combi in which when the hot water tap is turned on sometimes the hot water doesn't come through. When I was called out to the job it was working perfectly. I was leaning towards a sticky flow switch. Any advice would be appreciated. The boiler is over a year old...
  13. SimonG

    Warmflow Eco Combi Oil Boiler

    What a piece of sh!te. It was the only one we fitted and that was because they didn't tell us it went from 2 pumps to 1 pump and a diverter. Well it's just over 2 years old. Power cut and only providing hot water. Gets into it and the diverter is powered by a little relay. No problem I'll go...
  14. T

    High limit stat tripping on a warmflow oil boiler

    Good evening, about 2 years ago a customers high limit stat was tripping every so ofte,n not a sealed system. I turned the circulating pump speed up to 3 from 2 and seemed to cure it , until recently. Tripping again and hes now saying when he turned the Boiler on didn't heat water but rads were...
  15. G M

    No Hot Water after Heating Switch-on

    Hi folks, New to the forum and a total noob. Please be patient :-). We're in the process of moving into a newly renovated house. One of the renovation jobs was the heating system. We've had an unvented Warmflow pressurised system installed along with new radiators. We've been without heat or...
  16. S

    Warmflow UP90HE Oil Combi Relay click without heating ignition

    Hello, Would be great if someone could help me. Our Oil Warmflow combi boiler UP90HE has started playing up. It has a built in timer(TM-0521 or TM-0522) which allows manual operation of the hot water and heating. If i manually turn the hot water on, the boiler ignites when a hot tap is...
  17. P

    Oil Smell from Warmflow, Whitebird 70/90 Boiler

    This boiler is 13 years old and housed in the downstairs WC. Recently it began to smell strongly of oil (I don't think fume, see later) my engineer could find nothing wrong. We went away for two weeks and the boiler was turned off; on our return the smell was very very bad (obviously not fume)...
  18. J

    Sweet smell from new warmflow B90HE

    Hi! I recently had a new condensing boiler installed (last month - Warmflow B90HE). I've had it set up properly by an oftec registered engineer after installation by the plumber. After being on for about half an hour or more a slight sweet smell gathers in the utility room were it is...
  19. M

    Old Warmflow combi hot water flow switch alternative to over priced 1476 switch

    Hi I guess lots may already know this but I was a bit shocked looking at the ridiculous price of the 1476 flow switch folks might find it helpful to know that the Worcester 87161207400 which is brass bodied and half the price fits and works no problem. Not sure of connector matching but hey it...
  20. C

    Changing heat exchange on warmflow 70/90 boiler

    Hi I'm not a plumber, but I would like to have a go fitting a new heat exchanger on my oil fired warmflow 70790 boiler I can see the four copper pipes going in to the top of the heat exchanger, so I guess I just unscrew those, take the old one off, put some ptfe tape on the threads and...
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