Filter
Top Products
22
j. Troubleshooting Flow Chart - Quick Reference...
Third Visual Check
Main Burner Lights But Will Not Stay On
Is flame sensor cable
securely attached
to terminal 4?
No Yes
Does continuity exist
from control
to flame sensor?
No Yes
Is flame sensor corroded
or is ceramic cracked?
No Yes
Does continuity exist in
ground path from burner
to control?
No Yes
Check flame sensing current
during trial. Is current
greater than 0.3
µ
A DC?
No Yes
Correct
Replace
sensor
cable.
Correct
Is flame sensor
positioned per
manufacturer’s specifications?
Correct or
replace
sensor.
Replace
Johnson Control
module
G760/761
Correct
No Yes
Replace
Johnson Control
module
G760/761