Bananza UHD 150 series Operation Manual - page 42
Manual is about: tubular duct furnace standard range
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68
UHD S
TANDARD
D
UCT
F
URNACE
I
NSTALLATION
O
PERATION AND
S
ERVICE
M
ANUAL
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Figure 18: LED Diagnostic Codes
LED INDICATION FAULT MODE
Slow Flash
Normal Operation - No call for heat.
Fast Flash
Normal Operation - Call for heat.
2 Flashes
Ignition Lockout - No flame detected.
3 Flashes
Airflow Fault - Pressure switch open or closed.
4 Flashes
Temperature Limit Switch Open
5 Flashes
Flame Sense Error - Gas valve not energized.
Steady On
Internal Control Failure