Lochinvar Water Heater CGN250065

Check for rapid ignition and flame carry over across entire burner.

Check for reasonably quiet operation during ignition, burning, and extinction.

Check for no excessive lifting of flame from burner ports.

Check that burner venturi and ports are free of foreign matter.

Clean burners with bristle brush and/or vacuum cleaner.

Reinstall burners in unit ensuring correct installation in burner support brackets.

Refer to HIGH ALTITUDE INSTALLATIONS section for input reduction procedure if elevation is above 2000 feet (610 m)

Attach a pressure gauge or a manometer to the gauge port and refer to Table 5 for correct manifold pressure

Enter the time in seconds to burn one cubic foot of gas (T)

Enter the Btu’s per cubic foot of gas (H)

Calculate the actual heater input (Btuh) using the formula (3600 / T) X H

Remove the regulator adjustment sealing cap

Shut off gas supply to the heater

Remove outer cover plate from lower side of heater jacket

Remove six hex head screws securing tank cleanout plate

Remove lime, scale, or sediment carefully to avoid damaging glass lining

Verify damper operation sequence

Did the damper operate correctly in all three tests?

Troubleshooting Damper Operation

Does the water heater operate in AUTOMATIC OPERATION position?

Does the water heater operate in HOLD OPEN DAMPER position?

Refer to EFFIKAL RVGP-FSF-SERIES TROUBLESHOOTING GUIDE if the water heater operates in HOLD OPEN DAMPER position

Refer to Troubleshooting Sections and Operational Checklist if the water heater does not operate in either position

Ensure not to force the damper disc manually to avoid motor damage

Ensure the area around the valve is clear and safe for operation.

Verify that the discharge area is safe and will not cause water damage.

Lift the lever at the top of the valve several times to ensure it seats properly and operates freely.

Check operation of other relief valves if present

Did the temperature and pressure relief valve discharge periodically or continuously?

Describe any issues observed during the valve operation check.