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  1. dipz

    Vaillant ecoTEC plus 428 f27, f64 & CON error

    I've got a Gas Safe engineer under my business and its all been checked and its safe. Just trying to figure out a way of repairing the PCB instead of forking out a large sum to replace it. thanks
  2. dipz

    Vaillant ecoTEC plus 428 f27, f64 & CON error

    Hi, I'm having problems with my boiler recently, its about 8 years old. It's getting a f27 & f64 error code during start up but restarting the boiler will solve this and fire up however recently I've been getting CON error which means something is wrong with the PCB. This is mostly in the...
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