DPS 016–028 Gas Furnace Ignition Troubleshooting
Table 31: 300/450/600 MBH Staged Ignition Control Troubleshooting Guide (UTEC 1016 Ignition Board)
LED Indicator System Status Fault Description
Steady ON System Normal
supplied 24 VAC.
Table 32: Modulating Control LED Status Indicator
LED Indicator Functionality Description
PWR Blue
AFS AFS Green
Start Up SU
Modulation Green
Relay 1
R1 Red
NOTE:
Relay 2
R2 Red
NOTE:
Relay 3
R2 Red
NOTE: