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Ferroli optimax he25S Flashing f 37 How do I solve this problem, please?

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Take the Feroli (Italian for f***g cr*p & sling it in a skip!

Posted on Mar 24, 2009

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Posted on Jan 02, 2017

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Ferroli optimax he 31c. brand new system will only heat 3 of 8 rads. boiler on 90c will only burn for 15sec then D2 shows and it cuts out. Why??


it is either your pump is not running or blocked [ debris from installation ect ] or your diverter valve is stuck partially open allowing a little water to pass into the heating system [ usually first rads on system ] it runs for a short while and cuts out because your overheat stat is kicking in because of poor circulation [ it is only running around the primarys in the boiler where it quickly reaches the over heat limit ] temp tends to rise approx 1 deg per second a clear indication of circulation problems.
solution GET RID OF THE FERROLI

Dec 22, 2010 | Heating & Cooling

1 Answer

Do you know where I could get the instructions for setting the clock timer on my optimax he 31c


I sent an e-mail to technical@ferroli.co.uk telling them that my Optimax HE 31 C
manual didn't include instructions for the timer, and received a manual via e-mail within minutes.

You probably won't get a reply during the weekend though.

Good luck!

Trevor

Nov 28, 2010 | Quasar HQ2051TH Air Conditioner

2 Answers

Hi i have a ferroli optimax 31c , hot water works but my heating dont ,it comes on the the heat temp raises to its highiest then cuts of saying A3 AND D2 can you help please


hi had same problem engineer came out and the diverter valve was cloged up sorted it and recomended a system flush plus install a magnet clean whitch picks up debri be 4 it gets 2 the boiler.

Sep 26, 2010 | Quasar HQ2051TH Air Conditioner

2 Answers

Fault code ( nocn ) on a ferroli boiler


if nocn is on the time clock then check the wiring to time clock and if all good then it is the time clock at fault and will need repleacing

Apr 25, 2010 | Heating & Cooling

1 Answer

I have just tried to run my ferroli optimax 31c boiler. The boiler fires up, but then displays a d2 message and the radiators do not heat up. Any ideas what causes this problem and how I can solve it...


D2 is not a fault what that means is delay and 2 refers to CH which means the boiler has gone into standby mode. you need to check that your CH circut is open, there is a filter on the return valve into boiler make sure this is not blocked. If this is blocked the water is just going though the boiler by-pass so then the boiler thinks its up to temp. hope this helps

Oct 07, 2009 | Comfort-Aire RAD-243 Air Conditioner

7 Answers

Ferroli optimax 31c


Here is a link to the manual.It shows fault codes.
http://www.ferroli.co.uk/Product_Documentation/Domestic/Optimax_HE_31_C_Manual.pdf

Please rate this solution.

Jan 16, 2009 | Heating & Cooling

2 Answers

Ferroli optimax HE 31C boiler


Setting time is not in manual that we received, however, we did get a separate sheet: Buttons top left-right are A - Clock adjustment B - Operating Mode selecting C - Override Buttons bottom left-right are: D - - E - Programmes F - +
To set clock: 1 - Push A 2 - When the DAY and the CLOCK icons on the LCD are flashing use + and - (D and F). You should set the day of the week (1 = Monday, 7 = Sunday). To confirm the day press A. 3 - The HOUR and CLOCK are flashing use + and -. Confirm with A. 4 - MINUTES and CLOCK are flashing use + and -. Confirm with A.
My LCD is not working correctly, so I have to press the screen gently to see what icons are displaying. Annoying.

Oct 29, 2008 | Heating & Cooling

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