2 User Manual

Upon completion of any testing on the gas

system, leak test all gas connections with a

soap and water solution while main burners

are operating. Do not spray soap and water

solution on the housing. The use of an

excessive amount of soap and water solution

can damage the control. Immediately repair

any leak found in the gas train or related

components. Do not operate an appliance

with a leak in the gas train, valves, or related

piping.

NOTICE

Check burner performance by cycling the system while you

observe burner response. Burners should ignite promptly.

Flame pattern should be stable, see the Maintenance Normal

Flame Pattern section. Turn system off and allow burners to

cool, then cycle burners again to ensure proper ignition and

flame characteristics.

13. Remove the manometer and related fittings from the

“inlet” side of the gas valve, replace the 1/8" hex plug in

the tee (Models ER252 - ER402) or gas valve (Models

ER152 - ER202) and tighten.

14. Turn on the gas supply at the manual valve, turn on the

LP gas at the tank if required.

15. Turn the power switch to the “ON” position.

16. Ensure that the “ON/OFF” knob or the valve is in the

“ON” position.

17. Set the electronic temperature control to call for heat.

If proper ignition and burner operation is not achieved after

checking gas supply pressure and setting the correct net

manifold pressure, see the Maintenance section for Combustion

Air Shutter Adjustment in this manual. Follow the procedure to

adjust the combustion air fan.

Service Manual

Troubleshooting

(continued)