Bradford White TW4-75S-76B-3X - Manual (Page 28)

Page 28
TTW SERVICE PROCEDURE VII
Simulated Resistive Device Testing
Simulated Resistive
device
Step 1. Position power switch on gas control to the
“OFF” position.
Step 2. Disconnect simulated resistive device from
gas control.
Step 3. Using a multi-meter set to the ohms setting
check resistance of simulated resistive
device. Resistance must be within 25,000
ohms and 45,000 ohms. If outside of this
range replace simulated resistive device.
Simulated Resistive Device Testing
Simulated Resistive
device
Electronic
“pin type”
Meter Probes
Multi-meter set to
ohms setting
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Simulated Resistive
device
Simulated Resistive
device
Electronic
“pin type”
Meter Probes
Multi-meter set to
ohms setting