Ferroli Optimax HE31 C - No hot water or heating - no error code | Bathroom Advice | Plumbers Forums
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Discuss Ferroli Optimax HE31 C - No hot water or heating - no error code in the Bathroom Advice area at Plumbers Forums

L

lightdream

Hi all,

Unfortunately this is yet another Ferroli problem! We've had a few problems in the past with this but thankfully we've always been able to solve them through advice from forums. Previous problems and solutions are listed below:

1. The boiler does nothing but display 'noCa' on the display. Solved by a sharp tap on the bottom left of the display panel plastic.

2. The boiler was providing hot water but no central heating. Solved by opening the casing and giving a few sharp taps on the diverter valve.

After working for a while with no problems, the boiler is now failing to provide hot water or heating. There is no error code and the water pressure is fine. Yesterday, we got a Gas engineer to look at it and he said that the fan and pump both appear to be working but it didn't seem to be igniting, so he would try to replace the ignition equipment. Although to be honest, he seemed a little unsure, so I have have a few questions I was hoping someone could help with:

1. So we know what to expect in terms of price, could someone please confirm that he means by ignition equipment please? Is he referring to a Ignition Spark and Flame sensor Electrode kit (saw one of those on Amazon for around £27). If so, any ideas how much labour he might charge for the job?

2. After doing a bit of research, I found a video on Youtube that shows similar symptoms to the one's our boiler is exhibiting. In the video description, they put it down to a failure of a relay circuit. Does this ring true with anyone? I looked at a price for a new PCB, and at £200+, i've told my parents that they'd be better off getting a new, decent boiler (the engineer recommended Baxi, although I have a Worcestor Greenstar 25si at my flat and have never had any issues with that). The video is shown below:

https://www.youtube.com/watch?v=LUpBBzU_JgA

3. The fan seems to be whirring whether there is demand or not. Another forum suggested that it may just be a faulty fan. Does anyone agree?

4. A plumber friend of mine (but not gas engineer) suggested that it could be an airlock or a problem with the air pressure switch. I haven't got a clue what he's talking about but i'll pass this onto our gas engineer. Has anyone solved the problem using something along this route?

The reason i'm asking all these questions is that i'm trying to use your guys experience to help narrow down the fault. I'm getting the impression that the engineer is going to try replacing a number of things and it could end up costly (in which case, we'd be better off just installing a decent boiler). Has anyone encountered this particular problem before please and if so, what was the solution please?

Thank you in anticipation.
 
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