Fault Code History
The control stores the last 5 fault codes in memory.
When the push-button switch is pressed for less than
5 seconds, the control will
fl
ash the stored fault codes
when the switch is released. The most recent fault code
is
fl
ashed
fi
rst, the oldest last.
Fault history may be cleared by holding the push-button
switch for more than 5 seconds.
26 - DIAGNOSTIC CODES FOR STATUS LED
A RED LED is provided to indicate furnace operating status
LED Condition
Fault Condition
Check
8 Flashes
Lockout due to too many
fl
ame dropouts
Check system for proper ground.
Dirty, oxidized or failed
fl
ame sensor.
9 Flashes
Not used
10 Flashes
Flame present with gas off
Flame at main burner.
Gas valve.
A GREEN LED is provided to indicate high heat state
LED off
No demand for high heat
LED on
High heat demand, operating normally
LED
fl
ashing
High heat demand, high pressure switch not closed
52
