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Tim Cooke
Tim Cooke,
Category: Appliance
Satisfied Customers: 1374
Experience:  Owner at Self-employed
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Our Atag boiler is showing “central heating overrun” ?? On

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Hi. Our Atag boiler is showing “central heating overrun” ??
JA: What happened just before your boiler displayed this message?
Customer: On the thermostat - flashing the date and then uncoil ?? Sorry- unboil
JA: How long has this been going on with your boiler? What have you tried so far?
Customer: Literally half an hour - done nothing because don’t know what to do
JA: Anything else we should know to help you best?
Customer: On the boiler reading 75degrees but the indicating line is at top

Good evening, and welcome to the Technical section in JustAnswer. My name is ***** ***** I will help you today. There's no time pressure on this topic - it will stay open to you for many days, and you can reply at any time. I will be away from my desk sometimes, but will respond as soon as I can.

I will just review your question and hopefully will be able to reply with the information you need.

Please can you tell me the exact model of Atag boiler that you have.

Customer: replied 13 days ago.
Atag 128C

Please tell me the make and model of the thermostat.

Do the messages you're seeing coincide with any loss of function? Is the central heating still working?

Good evening, I haven't heard back from you.

The overrun warning isn't a fault, per se - overrun is a normal condition when the burner extinguishes the burner. If you have no other symptoms then this should be nothing to worry about.

Tim Cooke and other Appliance Specialists are ready to help you
Customer: replied 8 days ago.
Ok many thanks

Thank you for your rating :-)