Member Discussion
on Weil-McLain Ultra-155 Boiler
Technical Guide
Need technical manual for readout codes and mode analysis. Service tech's don't know them. I am a retired LP Gas/Appliance service technician and always had service reference manuals for everthing I worked on. Today's tech's want to go by wrote memory which leave's a lot of blanks when things really don't work. Please assist so real trouble shooting standards can be used. Thank you.