Reliant FVIR GAS WATER HEATER Technical Information PDF herunterladen (Seite 12)

RESIDENTIAL GAS AND ELECTRIC WATER HEATER

TROUBLESHOOTING and SERVICE HANDBOOK

RELIANCE Water Heater Company Technical Training Department

Sooting causes:

If … … then

the burner is clean but the chamber and/or flue

are sooted

check for lack of supply air.

the main burner, chamber and flue are sooted check the following:

incorrect orifice

excessive gas pressure

loose main burner

cross threaded orifice

gas control valve gas seepage

loose gas connection in burner assembly.

Electrical Testing

This type of water heater has its own electrical

generating system.

When two dissimilar metals are joined together

and this joint is heated, a small, electrical current

will be produced. A thermocouple uses this

science.

Thermocouple output test

Procedures/Conditions:

Meter set for DC millivolt testing

Test from lower ECO (emergency cut off or energy cut off) solder joint to ground.

Note: If pilot will not stay lit, manually hold the top knob down in the pilot position. This allows

gas to flow to the pilot. Light the pilot and continue to hold this knob down while conducting the

test.

If … … then

reading test of at least 13 MV is not present check that flame contacts end of

thermocouple

replace thermocouple.

reading test of at least 13 MV is present continue to next test.

Residential Gas - continued

TO GROUND

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Reliant FVIR GAS WATER HEATER Technical Information Seite 12