Topic Description
The course includes the following content:- Diagnose faults and defects of the high efficiency boiler based on several error codes.
- Identify the location of where the faults and defects are measured on the high efficiency boiler.
- Diagnose and troubleshoot 3-way valve, internal circulator, expansion tank, automatic water feeder, flame proving, main gas valve, temperature sensor, combustion blower, air pressure switch, and domestic hot water flow sensor.