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Broken I have a heating Saunier Duval themafast C 28 e.*** be reset? A error code F11.

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3 Suggested Answers

  • 15 Answers

SOURCE: I have a Saunier Duval

That code means low pressure.
The unit has either lost it's refrigerant charge or the coil is dirty. Look at the unit and find the metal fins. Make sure they aren't plugged up with lint and hair. There are two coils on an air conditioner, one inside and one outside. It won't hurt to check them both.
If cleaning the filter and coils doesn't fix the problem, it's time to have a technician come and check the refrigerant charge.

Posted on Sep 19, 2008

burty681
  • 56 Answers

SOURCE: low pressure for SAUNIER DUVAL

there is a blue tap at the bottom of the boiler when you turn it and nothing happends the screw had broken off inside you can do 2 things here put a new filling tap on the boiler , or get a filling loop put some where else on the system and if you still get low pressure replace the low water pressure switch...

Posted on Jan 31, 2011

SOURCE: we have a saunier duval

Hi, well usually it is unlikely that you indeed have an "Air Lock" as these are sealed systems, and would be further evidenced by the fact you would also most likely have been suffering "Water hammer" as well. which you didn't mention.

However all one needs to do, is drain the unit, from the Tap, and then reconnect the main water supply, and flush the system through. Now it is indeed possible that you may have blockage. It is possible hopefully, if it is not too bad the inrush of water may clear it? Often we use compressed air to clear out any obstructions if unable to clear by normal means this is unusual though.

Check you inlet valve, it maybe getting stuck, replacement is the only real option. Also check out that the protection mechanisms aren't faulty and stopping the unit from working correctly.

You really MUST obtain a service and repair manual if you do wish to DIY.

However in my professional opinion you will save money and time and headache if you simply engage a professional and ask for a "Quote' first, and proceed from there.

Below is a link to a place for a manual.

www.saunier-duval.co.uk/service/documentation_noncurrent.asp



Posted on May 11, 2011

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