Paul Barker said:I'm of the firm belief that if you are fair with your price and people start to haggle you should walk out. Then they will know that next time you give them a price that is your price. It's the same when buying, if you go into a second hand shop to buy something, ask the price, if it's too high don't hagle just say, oh you are far too expensive for me and walk out. The next time you ask them a price they will give you the correct one.
If your still intrested in fixing your linea, the company I work for have a big council contract to install/maintain & repair all their heating, sadly until recently these were mainly vokeras, anway fixing these them all day I can tell u 01 is a common fault on these boilers & is rarely(but not never) the gas valve. First check your working pressure @ gas valve inlet, then ensure high & low gas pressures are set correctly(essential 4 lineas), check condition throughout, connections & routing(ie-not touching 2 many conductive surfaces) of spark lead, check spark electrode condition & gap to burner 3mm(use a pund coin) & finally check the securing bracket holding fan to condense heat exchanger(this often slips loose causing fan to suck gas out of appliance to fast causing intermittant 01). If all is as should be it is likely(most common cause) "ignition pcb", many, many of these develop the intermittant 01 fault, a lot of the time while still in warranty which I find poor, considering how vokera bang on about there "obsession quality & testing", use the manual & xploded diagrams to assist & this should solve ur problem.
finally check the securing bracket holding fan to condense heat exchanger(this often slips loose causing fan to suck gas out of appliance to fast causing intermittant 01). .
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