Horstmann 7 help with not hot overnight

GeorgiaMandeville · 13 Sep 2024

Hello,

I have a Hortsmann 7 water heater and never had any problems before. Randomly it has stopped heating water on the programme. I have tried resetting it as per the manual but it is still not working.
If I press the boost button it will heat water absolutely fine but the programmed options do not seem to be heating water.

Please can anyone help? Thank you so much!

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Horstmann 7 help with not hot overnight

GeorgiaMandeville

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