well i have repaired plenty of saunier duval's and glowworms for the company faults i have found
1 Dirty systems blocking up H/Ex and backing up into the divertor
2 Undersized gas pipes leading to poor Dhw performance
3 Storage vessel on plus series
Other than that found them to be a good boiler, maybe because you fit so many you are seeing more faults just because of the amount your fitting rather than bad boiler design
1 Dirty systems blocking up H/Ex and backing up into the divertor
2 Undersized gas pipes leading to poor Dhw performance
3 Storage vessel on plus series
Other than that found them to be a good boiler, maybe because you fit so many you are seeing more faults just because of the amount your fitting rather than bad boiler design
