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Mend Vaillant Ecotec Working

Vaillant error message "Con"?

My Vaillant EcoTec Plus isn't working. It jys flashes the message "Con" on the LCD panel. How do I fix this? Many thanks.

James
July 2010
VaillantHeating, Home Heating SystemsVaillant Ecotec Working
CON on this boiler means ""communications error" look for a loose/disconnected wiring harness. If everything looks good get a engineer in. It will work out cheaper in the long run and will save you a lot of head scratching.

M
July 2010
Wrong Answer

the gasser
July 2010
condenshion trap blocked or full, check the out let outside is clear first, the the trap in the boiler.

erj
July 2010
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