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potterton promax

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  1. Baxter76

    Potterton Promax 18 - Fault

    Hello Wondering if anyone can offer any clues please // Potterton Promax 18 // Had an E1 error code, repressurised via with filling loop // Boiler fires but now the pressure runs up from 1.5 mark in the green up to 2.5 in the red then flicks off. // Error code again // Once held in reset for...
  2. M

    Potterton promax 40erp HW issue

    We have this boiler installed and it's started to give issues. The service was done and passed ok. But only as there was no noise for the guy to hear. Radiators are fine. When hot water is being used it generally seems OK, but sometimes there's a large rumble noise 10-15 secs then it stops. I...
  3. R

    Potterton/Baxi Promax Ultra 40 - Fluctuating temp

    Hi, I have the combi boiler Potterton/Baxi Promax Ultra 40. When I set the temperature to (e.g.) 45°C, the boiler fire up and stay at max power until the hot water temp increases to 57°C and them it turn off the flame. When the temperature reduces to 42°C, it fire up again. Doesn't matter the...
  4. G

    Difference between Potterton Promax FSB 30 HE and GOLD FSB 30 HE

    We have been given two part numbers for the electrode kit for our Promax boiler but the reference is for the Gold. Will we be ok to use the electrode kit 5132366
  5. A

    HOWLING POTTERTON PROMAX BOILER!

    We have a boiler that greets the day by howling like a dog! At 4.30 am it starts with a low moan that builds quickly to a reverberating howl that fills the entire house. This goes on for fifteen to twenty minutes with varying levels and pitch with harmonics and groans until it has reached it's...
  6. J

    Potterton Promax HE Plus - Question about operation.

    Hi, I've got a Potterton Promax HE Plus combi boiler and had a question I was hoping someone could help answer for me? The boiler switches on and heats up the radiators upon being activated but it seems that once the radiators get hot the pilot light on the boiler switches off for a while until...
  7. D

    Potterton promax he loud noise

    Help my boiler is like a broken washing machine spinning at night. Have emptied condensate pipe under boiler nothing seems to work loud banging had to turn off at mains.
  8. plumb_know

    potterton promax he store

    Hi Everyone, I am going to a promax he store which i serviced a few weeks back due to loud noise when heating was on. i cleaned burner replacing burner door seal & flue sensor. on the 1st visit the boiler was running fine until it modulated to low rate, the flame was not regulating properly...
  9. D

    Potterton Promax 15 HE Help

    I have a Potterton Promax 15 HE from around 2005. When I put the hot water on for an hour or central heating, the boiler runs for about ten minutes then shuts off. If I drain the condensate trap using the bung underneath, it runs perfectly for the hour. I tried draining the trap before putting...
  10. Lee Davies

    Potterton Promax HE 15 2004

    er OK, so here is an update on this boiler to see if anyone else is the wiser. I actually got longer than 15 minutes in the property today. I cleaned out the condensation trap, this was blocked, therefore causing the boiler to lockout. The trap was full of 14 years worth of aluminium by the...
  11. plumb_know

    Potterton Promax leaking

    Hi Everyone, I have found a leak on the potterton promax system heat exchanger on top left hand side from a nipple held on by clip, believe it most likely o-ring gone, but i cant find the part anywhere in manual. I have attached a picture hope someone on here can identify the part? Thanks
  12. Jock Spanners

    Potterton Promax Combi

    Evening All, I've got a new customer who's moved into the house that Jack built. No sooner have a replaced the illegal flue than the 5 year old Promax has developed dhw problems. It was your classic blocked phex so I replaced it. Then it started making an horrendous noise so on Baxi's advice I...
  13. P

    potterton promax 33 he issues

    Afternoon lads and lasses , having some issues with this boiler . Heating working fine. Hot water keeps dropping in and out !!! Recently had new diverter cartridge and motorised head as the hot water was going into the heating and hot water sensor (green wires) and its reaching 90 and then...
  14. C

    Potterton E168 error help.

    Hi all, i have a potterton promax 28 he that been giving me an random e168 errors. so far Ive replaced the actuator, diverter cartride, CH pressure switch, temp sensor, pcb and room stat (salus wireless). (All outside the combustion zone section) It doesn't happen as frequently now after...
  15. B

    Potterton Promax boiler making extremely loud noise?

    I have a Potterton Promax HE, and when I turn on just the hot water it is fine. However if I turn on the hot water and heating, after about 15-20 minutes it starts making a noise like it's going to bring the whole building down! I recorded a video... Potterton Promax HE noise - Streamable Any...
  16. C

    potterton promax 15he

    After some advice on a promax 15 he the older style one with 2x pcbs Boiler has delayed ignition intermittantly boiler has had over the last few months electrodes and leads ignition pcb gas valve Have checked burner its all good and is the ceramic one and not gauze Boiler will light fine...
  17. R

    Potterton Promax HE randomly turns off

    Hi all, I've read quite a few posts on here that have helped me try and diagnose the issue I'm having with our boiler, so thanks for that! But unfortunately we still haven't figured it out. So far I've spent a fair few hundred on an engineer to come and diagnose the problem, but even he is...
  18. J

    Potterton promax SL leak

    Hello, You appear to have misunderstood what I was asking for. I tried to make it clear that I have not and will not attempt to open the boiler myself. Having had two GSR people who had no idea how to fix, it I thought someone on this forum may have seen this problem before. I would then be able...
  19. J

    Potterton promax SL leak

    Hello, first post so be gentle with me. The boiler was in the house when we bought it, yes I know it is not the best in the world. The problem. When firing water dripping out of inner case. Before I get ear ache I have not even remove the outer case. The boiler has just been serviced and no...
  20. Stoney Ground

    Potterton Promax FSB 30HE

    Went to one of these this week boiler locked out. Reset, and fired then dropped out 5 times to lockout. Checked ignition sensing probes and cleaned, then all 3 cables slid out of porcelain. Combustion door seal was brittle on bottom right. Ordered spares and fitted replaced seals, fired up...
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