Your are wondering why F75 has been displayed on your Vaillant boiler. Do not worry it can be repaired, however what you need to know about vaillant f75 error is the following.
vaillant f75
The Vaillant F75 Fault occur when a sensor inside the boiler can no longer detect a flow of water, the issue is why?. Many engineers will simply replace the sensor and say its fixed. The sensor itself gets damaged by sludge in the system, sludge which has made its way into the boiler by bypassing the magnetic filter or if no filter is installed. However if system water is clear then the sensor can simply be tested in dc voltage for a feed of 3 to 5 volts with a return during operation of the same volts. CONTACT US TO HAVE YOURS REPAIRED TODAY AT A FAIR PRICE
vaillant boiler f75 ?
The Vaillant F75 Fault occur when a sensor inside the boiler can no longer detect a flow of water, the issue is why?. Many engineers will simply replace the sensor and say its fixed.
The sensor itself gets damaged by sludge in the system, sludge which has made its way into the boiler by bypassing the magnetic filter or if no filter is installed.
However if system water is clear then the sensor can simply be tested in dc voltage for a feed of 3 to 5 volts with a return during operation of the same volts. CONTACT US TO HAVE YOURS REPAIRED TODAY AT A FAIR PRICE