Trane *UH2C100A9V4VA - Page 38

38
Service Facts
X343070P08
DEFINITION:
Flame is sensed when it
should not be sensed.
Disconnect
electrical power to
furnace
Is there a drip leg
installed on inlet gas
piping per installation
instructions?
Using a back-up wrench,
install new gas valve
Check operation
Inspect gas supply
for leaks and have
gas supplier check
gas quality
Are there signs of
moisture or debris in
the inlet gas screen?
YES
Install drip leg per
National Fuel Gas
Code and
Installation
Instructions
YES
NO
NO
Turn off gas
supply! Remove
gas valve
5 Flash Fault LED