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6 months old ferroli optimax he31c. the boiler initially fires then goes onto d2 in the display and 82 deg. temp but radiators are not getting hot. Any ideas?

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  • Anonymous Feb 12, 2009

    i'm the same

  • doberman813 Apr 20, 2009

    cant get hot water and dont know why, the heating is working ok

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2 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

  • 9 Answers

SOURCE: I have just tried to run my ferroli optimax 31c

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

Posted on May 04, 2010

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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...


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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.

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