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  1. S

    Ferroli Falcon (Mk 1) Causes of Shutdown v Lockout

    Hi all - I have a Ferroli Falcon (Mk 1) which shuts down after 2-3 of running then lights straight up again on CH and on DHW. It is not locking out so I am trying to eliminate everything that could cause a lockout. Can anyone confirm if the limit stat, overheat stat, APS or low water pressure...
  2. G

    Ferroli compact 30

    Hi Guys, I heeded and took your advice regarding calling in a Gas Safe engineer to look at this F5 fault on this Ferroli compact 30 boiler. It was good advice and I thank you for it. As I explained I am an electrical/ electronic engineer. When the gas engineer called he immediately took a look...
  3. K

    Ferroli experts? A01 fault code

    Hi, is there any ferroli experts here? Looking for some advice on a Ferroli i29, attended a couple of times on an A01 fault code, cleaned condensate trap, hose, also connection at p trap. Tested all working when left on both occasions but the fault reoccurs in a week. Any advice would be greatly...
  4. G

    Ferroli sigma 40 60 issue

    Im trying to fix a Ferroli sigma 40 60 heat only boiler. As soon as its powered on the main board trips. instantly. I disconnected the fan and it stops tripping, so im thinking simple enough change the fan unit. Measured the ohms and it reads 75 which sound about right. connected the fan to a...
  5. M

    Any Ferroli optimax he plus 31 c gods on here?

    I have above boiler with A41 flashing up flow sensor disconnected. So i have checked for loose wires pcb end and sensor end. I have checked the ohms on the sensor both sides and got 11k on both that was both through the wiring loom and straight onto the connections. Which says to me that there...
  6. B

    Ferroli Optima 701 - Pressure Relief Valve passing?

    Hi All I have a Ferroli 701 Optima which leaks water through its CH 3 bar safety pressure relief valve. The water pressure on gauge NEVER goes above 1.2 bar though (with CH on or off). When i do put pressure in the PRV passes and it drop to zero over 10mins. The Pressure Gauge USED to go over...
  7. K

    Noisy boiler (Rubbish Ferroli HE18)

    I have probably one of the worst boilers you could have (not my fault, blame the home developer!) It's a Ferroli Optimax HE18s. We are getting a really loud vibrating noise when the hot water comes on. But if I switch the boiler off then on again and stops straight away and carries on like...
    • Karl1980
    • Thread
    • boiler ferroli noisy
    • Replies: 5
    • Forum: Boilers
  8. J

    Ferroli F24 CH led flashing

    Hello, my current system is a Ferroli F24 Combi boiler, I had to turn the water off at the stop tap, turned the water back on and everything was fine. Two days later noticed the hot water was running cold but the CH was still on fine. Had a plumber come and look at it and he said the flow switch...
  9. T

    Ferroli f30 bypass. Advice please

    moved in to new house last week Going to fit a Spirotech mb3 System dirty Flushing etc first Below the boiler there is a manual bypass Ie tee from flow to return pipe .tee on return pipe Gate valve in middle (closed) Struggling to fit spirotech with the bypass there Can I not just take trv off...
  10. Harvest Fields

    Ferroli F24 Flue problem

    Second opinion boys and girls. How would you class this? Thanks in advance.
  11. A

    Ferroli Modena 30c. Any gurus on here?

    Been to ferroli tonight. Display on boiler will show 'FH' with a demand on. Fan runs constantly. Pump will pulse on and off. Pressure gauges jumps in relation to this. Intermittently the boiler will light, then go out then light again then go out and give fault A01. Pump will now run...
  12. 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...
  13. J

    Ferroli modena 32c he - hot tap contamination

    I know these boilers don't have a good reputation but it's been reliable. I have a hot water contamination that only ever appears on the hot tap noticing it in all the hot water outlets (collecting in mixer tap filters). On a soft water feed. The flakes are non conductive and didn't desolve...
  14. K

    Ferroli Domicondens spark electrode fault

    Does anyone have any experience with resolving an A02 fault? "Flame present signal with burner off." Possible cause: electrode or card fault. It usually starts with an error code regarding no flame after ignition phase and is replaced by A02. I had a gas valve fault being displayed but got rid...
  15. S

    Ferroli Optimax f34 fault

    Is the f34 fault on an Optimax a new PCB or should I be looking elsewhere?
  16. B

    ADVISE PLEASE - What replacement boiler for Ferroli DOMIcompact F24B ?

    Hi All I have a Ferroli DOMIcompact F24B and it is nothing but trouble, i have had a new PCB fitted, new preesure gauge, new pump and it is not working AGAIN due to pump broken again !!! The Engineer has disconnected the pump so i only have HW, he also stated there is very small leak on Heat...
    • bilabonic
    • Thread
    • boiler ferroli replacement
    • Replies: 84
    • Forum: Boilers
  17. K

    Ferroli Modena HW probs

    Hi, My Modena 80e has started playing up. Shower is Grohe 2000 mixer bar and the water gets hot, then after about 3 minutes goes for much cooler and then back to hot again and repeats. Burner is on all the time and I replaced both thermistors about 8 months ago due to same problem and the...
  18. J

    Ferroli modena c30 cold Central heating

    I'll try to be specific but stick with me as I'm Welsh :) Water is fine, no problems at all. Turned the CH on last week, all was well. Turned it on today and all is not well. Firstly the temperature setting will not allow us to go past 36' C it has gone there own its own from 45. checked the...
  19. M

    Ferroli system boiler woes

    We have a 9 year old optimax HE25s boiler which heats the hot water but can't cope with the CH. The problems started about 3 weeks ago when we started seeing d2 in the display a lot. At that time the rads furthest from the boiler failed to heat up at all! When the boiler came on it heated to 90...
  20. D

    ferroli domicondense he 26c

    hi i am new to servicing, i have never come across a ferroli boiler before i done all my usual checks all fine come to do a FGA test and my readings seem really high, i have had a look in the manual cant find any readings at all in there, i have tried to ring there technical line they shut at...
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