A.O. Smith FPSE50, fps50, FPS40, FPS 75 manual Main Burner Problems, IrvinQ, Texas

FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK

Trouble- shooting cont.

FPS 40 and 50 SERVICE AND OPERATION cant.

MAIN BURNER PROBLEMS

The following are possible causes of main burner problems:

1. Unlevel burner will cause yellow flames

2.Burning and the orifice indicates main gas valve may not be fully closing.

3.Incorrect manifold gas pressure; it should be 3.5" for natural gas and 10" for propane.

4.Soot build-up. Check gas pressure and air flow through heater and venting.

@1995		Technical Information
A.D. Smith	39
Water Products Co.		IrvinQ, Texas