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Vaillant F.71

V

Vent80

Joined
16 Jan 2020
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United Kingdom
I have a vaillant eco Tec plus 851 when heating on after about one hour I get F.71 told it's likely a sensor so I would like to know a reasonable quote to expect to fix this issue thanks.
 
Assuming it is the sensor, probably about £80+vat to fix it. If it's something else, then a different price.
 
Thanks muggles in this case I think I will be better to get the vaillant service plan for 6 months
 

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