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D1 code on a Optimax HE 31 C combinaton boiler

Optimax HE 31 C combinaton boiler

d1 code apears when you flush the toilete, after a short time it resets itself

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3 Suggested Answers

rockitman187
  • 2559 Answers

SOURCE: 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.

Posted on Jan 17, 2009

  • 1 Answer

SOURCE: 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.

Posted on Nov 08, 2009

  • 9 Answers

SOURCE: 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

Posted on May 04, 2010

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1 Answer

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Is there an error code? If not the flow sensor for the hot water could be faulty. Also if you've had a power cut depending which model of Optimax HE you have, you sometimes have to tell the boiler it's a Combi, as they have a generic Pcb fitted which is also used on the system only boilers.

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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


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1 Answer

Toilet flushes 3 times when it is flushed.


take off top cover, and check flapper valve for proper seating when flushing.. could be that it is dirty (where it makes contact with tube of tank), and/or the chain length is too short (one link or two)

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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

2 Answers

Optimax he 31 c whirs loudly but makes no heat


After calling an engineer it turns out it was a faulty fan (The loud whirring should have given this away...) Apparently this is a relatively common fault with this type of boiler. Only solution is to replace the fan which, as of 2010 is still under warranty and can't be bought separately, so you'll need to call Ferrolli.

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1 Answer

Toilet flushing fills up to level but emptying on its own but water level still at correct level . its a barcelona suite from b and q


If the water level is below the overflow pipe, you need to replace the rubber flapper. This is the part that lifts up when the toilet is flushed and then falls back to the original position after the tank empties.

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Toilet wont flush completely. it may take 4 times or more to flush solids. i at first thought this was related to heavy rains we had been receiving in the area over a period of about 4 months. 2 days...


there is no air release. the vent must be clogged somewhere. you can take a hose up there and see if it drains all the way or floods over. since the tub drain has a trap and the toilet itself is a trap, there has to bee a good amount of air pressure coming up without a release. i would say an obstruction. possibly at the junction of the main and the vent.

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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

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Nov 28 .

N3l.

00= 31 6F CB 3F 2E 45 5A 04
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