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fault

  1. P

    A21 fault on Greenstar Comfort RF

    Hi I have a permanent A21 fault on my Greenstar Comfort RF receiver on my boiler. I am unable to access the settings as it does not respond to any input from the buttons on the panel. My thermostat is showing an A28 fault. My thermostat was not working so I disconnected it from the receiver in...
  2. D

    Replacing Diverter valve to fix PCB fault?

    Hi, new to the forum and looking for some advice if possible. I had an engineer out to look at my combi boiler (potterton performa). The power light is coming on, but no response to demand for hot water or central heating. The engineer had a look inside and found the PCB was getting 240V in...
  3. Inverness

    Ea fault code Worcester cdi

    hi guys, pressure had zeroed so topped up pressure. Boiler still flashes ea code, when you reset the boiler you can hear the electrodes trying to spark. I'm going back tomorrow my plan is to do a gas pressure test on the inlet. If there's no pressure ill remove gas valve and see if there's any...
  4. N

    I am looking for help with my NVQ L2 Maintenance and Fault finding

    Hi guys! I'm looking for help from a Plumber with 5+ years of experience for my NVQ L2 evidence work,which will enable me to attend onsite assessment. I think it should not take more then 1 day to complete it.I just need to make some pictures that i am solving a problem basically and write down...
  5. S

    Quick answer on mid position valve fault please

    Evening all, I’ve just left my last job of the day and I’m completely knackered. I’ve just been round to a job I did in January ( manual flush radiator on kicrobore) and whilst I was there the old tower mid position valve was making a racket, so the customer asked me to put a new one on(...
  6. Best

    S plan probable wiring fault?

    I replaced a programmer on an S plan system in a small bungalow and when checking zone valves operation, I discovered an existing problem. There is the usual 2 port MV for radiators, (controlled with hall stat), plus a second 2 port MV for hot cylinder, (controlled with cylinder stat)...
  7. G

    vaillant f 62 fault code how to test

    Hi all, ive got a call to look at a vaillant ecotec with an f 62 fault tomorrow. Its a gas valve fault not closing properly but it also could be the pcb causing the same problem. Can anyone advise me. Is there a simple test to be sure its the gas valve or the pcb that needs changing. Thanks in...
  8. J

    Fan fault (red & green flashing) on my alpha HE CB33 and dropping pressure...any ideas?

    Hi guys... I have a alpha HE CB33 and it’s dropping pressure and coming up with error code (blocked flu or fan fault) any ideas?
  9. A

    Intermittent fault on biker mynute VHE

    Couple weeks ago I was called to a customer complaining her hot water was extremely hot. When checking the system I found the 3 port to be stuck in the mid position which explained the hot water issue. While I was there I noticed the pump was an old bronze pump so advised it would be a good idea...
  10. O

    Vaillant F20 fault error

    hi guys, As mentioned in the title I am going to visit a customer today and she has got a Vaillant f20 fault code. I would like to pick your brains and ask what it could cause the boiler to overheat? Don’t get me wrong I know a few reason but perhaps it is a common fault and you could guide...
  11. H

    ideal independent c24 F1 Fault, but pressure is high

    Hi guys, I've just spent the last half an hour going through the fourm trying ot find someone with my problem but no luck. I have a C24 combi showing F1 fault, the pressure is high if anything - just over 2 when it should be 1.5. Any idea how to make this error go away? I turned it off and...
  12. AJ9

    P & J Fault Finding Course Scotland. Feedback?

    Hi folks Currently a Service Engineer looking to move onto Repairs. I've been looking for a Fault finding course which also does controls & have came across P & J Training in Johnstone, Scotland. They want £350 for a 2 day course covering Multimeter training, Fault Finding and Testing and then...
  13. AJ9

    Looking for Gas Fault Finding & Heating Controls Course

    Hi Folks I'm a service engineer but looking to do a Course similar to Baxi's Fault Finding & heating Controls course. The company I work for aren't able to give me the extra training I want which is frustrating as I want to progress onto Repair/Breakdown. I'd also be happy of opportunity to...
  14. A

    Ferroli Modena A01 fault code

    Hi, I have been asked to look at a Ferroli Modena tomorrow evening. I've been text the details by a letting agent. They have requested I attend after 7pm, fine by me I have a job around the corner at 6pm. It's giving the fault code A01. It's an ignition fault. Is anyone familiar with this? I...
  15. king of pipes

    Valliant 631 37kw heat only f62 intermittent fault

    Digital Temperature read out jumping about a bit my diagnosis is PCB on it's way out any one had this . Kop
  16. J

    Renegade advantage plus e5 fault

    hi new to this site wonder if anyone can help. The above boiler goes to e5 ONLY when the bath tap is run I have replaced the burner seal with a new graphite one and the electrode. Heating fine other taps ok but still bath an issue Any help would be appreciated
  17. A

    Asked to change a programmer. Ch fault still occurring.

    Hi, Had a phone call today from a letting agent. Asked me to straight swap a programmer and asked how much. I said 1hr labour if its as they say. Programmer supplied by agent and left at the property for me. I asked has it been confirmed it's the programmer at fault. (I didnt want there to...
  18. A

    Ideal Independent C30 boiler - fault F1

    Hi. I know that F1 means low water pressure. Had a look at the boiler and taken front cover off and can’t see any filling loop!? Any idea how to bring water pressure back up?
  19. S

    Rayburn 460 lock out fault

    Hi I am having an intermittent problem with the lock out on both the cooker and boiler side of the unit. The oil pressure is OK at 130 PSI I have tried it higher but no improvement. The jets are relatively new and the combustion chambers are clean. When just the cooker is running no lock out...
  20. elbistan

    Ravenheat CSI 120 fault 28

    Hello everyone, Just been called to this boiler with no heating or hot water. My first Ravenheat boiler. When there is demand for DHW boiler sees the demand the pump runs for several second and then the fault code 28 is displayed. Looking at manual it states: Failed Flow Water Pressure Switch...

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