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Question - Home Heating Systems

What does F43 error message mean on a Glow Worm 24/30cx boil?

What does F43 error message mean on a Glow Worm 24/30cx boiler?

It was displaying F1 and F4, but now F43.


Chris

February 2021

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What does F43 error message mean on a Glow Worm 24/30cx boil?