Step 2. With the water heater plugged in and the gas control power switch in the “ON” position verify LED status.
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Verify 115VAC and proper polarity are at the wall outlet.
Step 1.
Gas control power
switch
Step 2. Disconnect the flammable vapor sensor harness
from the gas control.Flammable vapor
sensor harness
Step 3. Using a multi-meter set to the ohms setting, measure the resistance of the flammable vapor sensor and resettable ther- mal switch. The resistance must be between 3,000 and 48,000 ohms. If the resistance is out of this range, verify that the re- settable thermal switch has not been tripped. If it hasn’t,
the thermal switch.
Flammable vapor
sensor harness
115 VAC Circuit Trace
Move the gas control power switch to the “OFF”
Step 1. position.
electronic probes or small diameter wire pins inserted into connector.
Do not use standard multi-meter probes for this testing.
Flammable Vapor Sensor Testing
Gas Control Assembly to the Thermal Well (cont’d)
Step 8. To resume operation, follow the instructions located on the water heater lighting instruction label. Or, use the lighting instructions located in the water heater installation and operating manual.
Flammable Vapor Sensor Testing
CAUTION
Doing so will damage the connector. Use special pin type
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