Trane S8B1A040M3PSC Installation, Operation And Maintenance Manual page 70

T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g
DEFINITION
Flame is sensed when it
should not be sensed.
Install drip leg per
Na onal Fuel Gas
Installa on
Instruc ons
70
Code and NO
5.0 Fault Code
Disconnect electrical
power to furnace
Turn off gas supply!
Remove gas valve
Are there signs of
moisture or debris in the
inlet gas screen?
YES
NO
Inspect gas supply
for leaks and have
gas supplier check
gas quality
Is there a drip leg installed
on inlet gas piping per
installa on instruc ons?
YES
Using a back-up wrench,
install new gas valve
Check opera on
S8XB-SVX001-1B-EN