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fault

  1. Stiltz

    Honeywell Controls Fault?

    Hello everyone! Since the cold weather started I’ve noticed that the Programer (Honeywell ST9420C) isn’t working properly. It doesn’t turn on/off in the auto pre set times in the C/H mode. It works correctly in the auto pre set times in the H/W mode. The C/H is effectively on constantly...
  2. D

    Worcester Greenstar 24i E9 with code 276 fault

    Hi, I am handy DIYer but not interested in touching anything boiler related! Just interested before I get a Gas safe engineer out what I could be looking at for what the problem is and rough cost. So in a nutshell, I put a radiator on in a room in the extension, noticed after that the pressure...
  3. E

    Ideal Logic +18, intermittent fault

    Have an Ideal Logic + 18 with intermittent fault. When on demand the display constantly changes from O to C but burner doesn’t start. Can fix by switching Off then On again, but this only lasts for a day or two. As it’s an intermittent fault I’m reluctant to call out an Engineer. Any ideas?
    • Ed Alexander
    • Thread
    • fault ideal ideal logic logic
    • Replies: 4
    • Forum: UK Plumbers Forums
  4. N

    Vaillant F23 fault, Reading

    I have a Vaillant Ecotec Plus 424 boiler in a closed heating system with 13 rads and 4 towel rails. Rads are steel, pipes are plastic kind of "modern microbore". System water pressure is 1.1 bar. It's a fairly new house, built in 2016. The boiler was last serviced in January 2019. For the last...
  5. C

    Vaillant VRT392f fault thermostat controller

    Our VRT 392F wire thermostat control is not working, it lights up and you can change Deutch to English but then you cannot do anything else. Water leaked into our circuit board on our boiler but we have had a new circuit board put in. I looked at the thermostat control, changed the batteries...
  6. P

    Worcester green star 30si fault

    We have a Worcester green star 30si boiler Hot water is fine. Ch temp is set at 70 degrees but boiler heats to 68 quite fast then takes ages to heat to 72 when it finally pumps round system, Seems to be on constant low burn?
  7. S

    Worcester Boiler - Fault has the engineer stumped (video)

    Hello, My mum has a Worcester Greenstar HE30 boiler (15+ years old). Since its last service (and possibly coincidentally) it has been making a booming/banging sound randomly. This is a noise like a pocket of gas igniting and can be loud enough to make you jump. It's been impossible for the...
  8. A

    S30 FAULT CODE ON VALLIANT ECOFIT PURE 425

    Can anyone advise how to by pass the room stat to ascertain if its faulty as fault is s30 not calling for heat. Thanks
  9. S

    Could this be my boiler's fault?

    Hi there, the water flow in our shower has reduced considerably since we bought our house, meaning the hot water tends to cut off after a minute or two; the shower is fed by a combi boiler: Worcester Bosch RD532i, about 17(!) years old I think. I can't really say if the water pressure in the...
  10. K

    Glowworm fault flashing F then - -

    Has anyone ever seen a flashing F. then - - on a glowworm?
  11. J

    Potterton combi gold 28 HE, fault?

    Good afternoon all, I am a commercial gas engineer so little experience with domestic (although fully qualified). I have a problem with a Potterton combi gold whereas I initially had no heating. I looked at the actuator on the diverter which was not driving so for £12:50 I just ordered a new...
  12. T

    Kitchen tap design fault?

    I recently installed a C&L Bilbrough tap from B&Q in a new kitchen. Its the one with a a spout with a switch on it as well as a spray head with switch in additon to the hot/cold mixer/volume control. I have found that if both the spout and spray head are closed off and the mixer valve open...
  13. M

    2 port valve fault finding?

    Hey guys. What’s the easiest way of determining that a 2 port motor has failed? I know that if the stat is calling and the arm is set to open on the valve and the actuator is ok it will fire. Is it purely a case of checking whether 240v is at the brown and orange when heat is called for? Any...
  14. F

    Ferroli fault every Sunday

    Hey there. We have a Ferroli boiler in our commercial premises. It is set on a schedule for 9-5 Friday and a few hours on Saturday and Sunday mornings. Every Sunday morning we come into an error code of A01. I know what the code means but what I wanted help with is why does it happen on the...
  15. MrGatch

    Possible fault two-port valve

    Hoping you guys can help confirm the diagnosis of a fault before I call a plumber. I've lost heating to the upstairs zone on my heating sysem. System boiler is working fine feeding two other zones and the hot water. The zone is connected via a Nest, which is saying its calling for heat but...
  16. balders99

    Plumbing or Appliance Fault?

    Had a new Kitchen fitted just before Xmas with integrated Washing Machine and Dishwasher (never again!) Appliances are located around 3.5m away from the sink, in a corner, sink one side, appliances on the other. All hose lengths within manufacturers recommendations btw. Washing Machine drum...
  17. L

    Advice on fault finding courses

    Hi, I currently work on new builds with very limited work on the repair, maintenance and fault finding side of boilers. I’m currently renewing my ccn1 and cenwat gas card as I type this and it has made me very interested in getting into this line of work or even have a better understanding of...
  18. T

    Drayton MA1 mid position actuator intermittent fault.

    Can anyone advise what could be the cause and how to overcome an actuator intermittently not responding when boiler is calling for heat. Possibly slightly loose fitting to valve, as actuator re-activates with hand pressure movement when boiler is calling for heat. This is an intermittent fault...
  19. moonlight

    Worcester Bosch Fault code P3

    A customer rang this morning, says they have a intermittent fault on the boiler P3. Its a Worcester CDI30 I think from a past visit. I did quote for a new boiler 10 months ago, but the old one is still hanging in there. I looked on line as I don't have the book with me. Any suggestions? He says...
  20. seanadams121

    Ferroli f34 fault for my sins

    Hi. Does anyone know the cause and solution to the f34 fault on a ferroli? The manual is saying its the low voltage error and to check the supply. Im assuming that its correct as installed and this is a pcb fault. Has anyone had any experience with this fault before i go out tomo? Cheers lads

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