Mend > Home Heating Systems

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

Vaillant Heating, Home Heating Systems Error Flashes Panel

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

Automatic Answer

We may have found other answers which could help you.

Click here for Error Flashes Panel

Mend repair fix Vaillant home heating systems

vaillant ecoTEC plus boiler fault code - how to fix?

Hot water comes and goes!?

What does f.25 mean?

Vaillant F22 fault?

Vaillant condensing boiler ecoTEC plus?

how do I rectify the fault as detailed below?

Vaillant 828E - no hot water?

how to fix water pressure its down at bottom of grey part?

Vaillant vcw gb242 eh central heating problem?

Vaillant ecotec 831 plus?

Vaillant eco plus 531 boiler?

Vaillant VCW-Sine18 T3WFH Lights but then goes off after 5 Min?

Other models...

Vaillant ecoTEC 831 Plus

Mend Vaillant Home Heating Systems

Related Categories

Mend > Home Heating Systems

Vaillant error message "Con"?

Automatic Answer

Vaillant error message "Con"?

I can answer this question ...

Vaillant error message "Con"?

Other models...

How to mend ...

Mend home heating systems ...

Worcester boiler dripping water?

Vaillant ecotec 831 plus?

Remove boiler cover?

Siemens RDJ10RF thermostat problem?

Boiler cycle?