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Vaillant Fault Code F.64
- Richard Weedon
- Feb 28, 2021
- 1 min read
F.64
Fault: Electronics/sensor: Flow or return NTC short circuited, electronics defective
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Reliable CP12 landlord gas inspections, boiler servicing, repairs and professional plumbing solutions across London, Enfield, Tottenham, North London and surrounding areas.
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Fault: Electronics/sensor: Flow or return NTC short circuited, electronics defective
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