American Standard UHMB060ACV3VB Series Service Facts page 46

Service Facts
DEFINITION:
Flame is sensed when it
should not be sensed.
46
Install drip leg per
National Fuel Gas
Code and NO
Installation
Instructions
5 Flash Fault LED
Scroll through
User Interface to
View number 1 of
Last 4 Faults
User Interface
shows a
FLAME
ERROR?
Disconnect
electrical power to
furnace
Turn off gas
supply! Remove
gas valve
Are there signs of
moisture or debris
in the inlet of the
valve?
YES
Inspect gas supply
for leaks and have
gas supplier check
gas quality
NO
Is there a drip leg
installed on inlet
gas piping per
installation
instructions?
YES
Using a back-up wrench,
install new gas valve
Check operation
UHM-DHM-SF-1V-EN