Question about Heating & Cooling
Just had same problem. this apprently happens if the power supply has been interrupted or you switch the power on and off.
• The boiler runs for 15 minutes at minimum heat output to fill the condensate trap, the display (K) alternates between -II-” and the boiler flow temperature. This occurs every time the mains supply has been interrupted.
Posted on Jan 07, 2009
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Posted on Jan 02, 2017
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