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Temp keeps fluctuating

Combi Alpaha CD28C

The temperature comtrol keeps going up without any warning from its setting of 18C.

How can we control this/ of

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Sounds as though it could be a cental heating thermistor prob, you dont say wheather its the boiler unit or the remore programmer?

Posted on Dec 15, 2008

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http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html#temperature

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