Please can anyone help. My Vaillant Ecomex pro has just shut dow with the red light flasahing and 5 F showing on the display. If I turn it off and an again it strikes up but closes down after about 1 second. We are having some really frosty weather so it is greatly needed. Any helo would br great. Many thanks.
Vaillant Ecomax Pro Red light flashing and 5 F on display
- Thread starter barrie1
- Start date
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Thinks its overheat check pump or thermistor
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