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I have now managed to get the thermostat to engage the boiler, but when the timeswitch is off the whole thermostat switches off. The problem with this is that when it is powered back up, it resets the temp and does not store the required temp. Any ideas???? Do I need some sort of independent...

The boiler runs when the red and yellow are touched.

Please can someone help me. I am trying to change my thermostat. The old one has 3 wires plus Earth which is not used. RED- Live, Blue - Neutral, and Yellow (sun sign). The wiring diagram for the new unit is available at the following URL.: www.eneq.ru/download/?n3031en.pdf The model is the...