Recent: Will I need to replace my garden tap?

Mend > Home Heating Systems

Mend Ferroli Optimax He 31C Combi Fault

Ferroli Optimax He 31C Combi fault?

Hi,
I have a Ferroli Optimax He 31C Combi gas boiler. In the morning it regularly locks out on a F03 code every time I run a bath. I then reset the boiler and it works ok again, until the next time.
No problem in the evenings!
Central heating all ok and no problems. It's only when I use hot water - but not all of the time! Anyone with any experience of this fault with this particular boiler?
Many thanks,
Frustrated,

Paddy M
December 2010
I am having this exact same problem. It is 9 months old too. I am not too impressed and wonder if anyone finally got a resolve and could share it with me please

James
October 2011
Hi, I brought a brand new house with athis type of boiler in it, it is absolutely terrible, it has broken down three times, the engineer is blaming the installers, the installers say they installed it correctly, leaving me with a bill for a new boiler, dont ever buy from Ferrloli

john
February 2011
have the same problem here,apparantly the water gets heated too hot so the boiler trips out to save you getting scolded,why the water temp stat does not prevent this happening god only knows

karl
January 2011
Many thanks Rob.
Really appreciate the time and effort that you have taken to reply.

Paddy
December 2010
Hi Paddy,according to the fault code list the problem could be one of two things,either the flow temperature sensor is faulty or the internal by-pass is at fault,either way you will need a gas safe engineer to take a look.
hope this helps.
Regards,Rob.

R.A.MOORE PLUMBING AND HEATING.
December 2010
apologies - I meant Ao3 fault code.

Paddy M
December 2010

Related Questions ...

Mend modena combi boiler
2

whats wrong with my ferroli modena 102 combi boiler?

Boiler not running _no heating or hot water. Fan not working, willnot lite .water at 1.5bars . Showing lockou... [Read more]
Mend combi boiler burner faulty
2

faulty combi boiler?

I have a ferroli f30 combi boiler with a fault on the hot water. Boiler fires water runs hot then burner cuts ... [Read more]
Mend boiler ferroli fault
2

ferroli optimax HE 31C combi boiler?

my boiler will not fire up it just starts the fan then goes on to F12. What is F12 fault
Mend boiler combi fault
1

ferroli boiler fault?

combi condensing boiler LPG no heating no hot water when boiler runs water in boiler can be heard circulating ... [Read more]
Mend combi cold supply
1

Why does Ferroli F24 Combi Boiler water go hot and cold?

I have a Ferroli F24 Combi Boiler and our hot water supply goes cold intermittenly and we can't seem to get a ... [Read more]
Mend Ferroli Combi Fault
2

Boiler Systems?

How do I improve a low water pressure fault on a Ferroli Optimax HE 31 C Combi Boiler System? The pressure... [Read more]
Mend combi boiler ferroli modena heating
3

Why is my Ferroli Modena 80E combi boiler not heating water for my shower?

I have a Ferroli Modena 80E combi boiler and I am at the stage I feel like throwing it out the window. The wat... [Read more]
Mend combi boiler gas boiler heating
3

Ferroli combi not responding to thermostat?

I have a 3 year old Ferroli combi gas boiler. A couple of years ago it stopped responding to commands from the... [Read more]
Mend ferroli he31c boiler
11

Ferroli Optimax HE31C repeated A3 fault?

Hi, Has anyone had any experience with the Ferroli Optimax HE31C combi boiler? We recently had one install... [Read more]
Mend boiler heating fault
1

Ferroli Band b Optimax Combi Boiler?

This may be a completely stupid question but i am, after all a mere female! My heating won't come on, the boi... [Read more]
Mend ferroli combi fault
3

Ferroli Optimax 38c combi boiler showing fault code d1 ?

My ferroli 38c condesing combi boiler has no hot water and showing fault code d1 ? the c/heating is working f... [Read more]
Mend combi boiler fault boiler parts
2

Ferroli hawk 2 air pressure switch fault?

The air pressure switch on my combi is faulty . Is a similar air pressure switch from another ferroli boiler s... [Read more]
Mend boiler heating fault
3

Ferroli Optima 901 Boiler?

Ferroli Combi Boiler Optima 901? Niggling fault which seems to be getting worse. If the boiler is not used... [Read more]
Mend combi heating fault
3

Ferroli Combi Boiler Optima 901?

Niggling fault which seems to be getting worse. If the boiler is not used, i.e you have not run hot water for... [Read more]

How to mend ...

Find out how to mend just about anything howtomendit.com for free repair help, information and advice.
Mend Home Heating Systems ...