Question about Water Heaters
It is a vaillant boiler ECOmax 622E
Maximum temp exceeded on ntc1(thermistor),,,either clean out heat exchanger,power flush of my first option replace thermistor...
Posted on Feb 02, 2009
Can any one help can u tell me wot e 13 meens on a vailant ecomax 824e gc number 4704407 thank u
Posted on Jul 03, 2009
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Posted on Jan 02, 2017
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