Main Heat 12 error 160


I have Main Heat Boiler with 12 kW output and it is 5 years old. Till today I had no problem with it, today I realized that it is not working (no heating, no sound, no ignition, noting) and it displays error 160. What’s wrong? Should I restart?



Hi Ryan,

An error 160 is a serious one and most probably you should contact as specialist. Following connections should be checked- all fan and PCB – X2 across terminals 5 & 7. Keeping it simple replace fan & replace PCB. That should help.