Discuss ESRTP4RF+ receiver question in the Central Heating Forum area at PlumbersForums.net

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I have a ESRTP4RF+ and the heating and hot water are running fine.

My bills have quadrupled over the last month and the m/a button on the receiver is lit red. Is it supposed to be or am I in some kind of manual over ride that's costing me a fortune?!
 

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