American Water Heater (A)BCG385T500-8N User Manual

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Servicing should only be performed by a Qualifi ed Service Agent
TROUBLESHOOTING
TEST 9: IGNITER HEATS, NO MAIN BURNER
Conditions:
Test 8 completed
• 
Turn off power
• 
Disconnect wires from gas valve
• 
Inlet
Outlet
Manifold
Pressure
Tap
Measure Resistance
Between Gas Valve 
Terminals (Main Valve 
Solenoid Connections)
Manifold
Pressure
Tap
Figure 28
TEST 9
IGNITER HEATS – NO MAIN BURNER
IF.........
then............
Meter reads 0 or 1
•  Check meter scale setting; verify that it is set to read between 550 and 650 Ohms.  
•  replace the gas valve
Meter indicates pilot and main coil have 
continuity
valve should be okay.  However, if there is still no gas to the main burner, the coil 
may be stuck.  Replace the gas valve.