In Sun City, near West Royal Oak Road and North 103rd Avenue performing Fall preventative maintenance on a York package gas system. Upon arrival, cycled unit into heating mode. Homeowner declined washing Air Care filter. Took temperature readings from supply and return. At unit, cleaned out the burner assembly. Removed and cleaned the flame sensor and reinstalled. Checked the gas line for leaks. Checked the back pressure safety switch. Checked all limit switches. Checked the indoor blower and inducer motor amps. Upon departure, unit is working properly and within manufacturer specifications.
