Furnace Control Board - Empire DV-20E-5 Installation Instructions And Owner's Manual

# of Blinks Fault Condition
Steady On Control OK
1 Flash Temperature limit switch is open
2 Flashes Pressure switch is open with inducer on
3 Flashes Pressure switch is closed with inducer off
4 Flashes Lockout due to failed ignition
5 flashes L1/Neutral reversed or voltage not present
on L1
Rapid Flash Flame sense or internal control fault
Note: If the hot surface ignitor is to be replaced, be sure to disconnect all power to the unit. Be very careful in handling the new ignitor
as they are fragile and can be broken easily if hit or dropped.
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FURNACE CONTROL BOARD

DIAGNOSTICS
FAULT SEQUENCE CODE — TROUBLE SHOOTING GUIDE
Fault Correction
-Check Circulating Air Blower Inlet or Grill Outlet for Blockage, Inducer
Blower/Circulating Air Blower Run to Cool Heat Exchanger and Limit
-Check for Flame Roll Out Condition Causing Roll Out Limit Switch on
Burner Box to Open
-Clean Circulating Air Filter
-Check Heat Exchanger and Flue System, Outlet and Inlet for Restriction
-Check Inducer Blower/Wheel for Operation/Airflow
-Check Pressure Switch
-Check Pressure Switch and Replace
-Check for Broken Ignitor
-Check for Bent Ignitor Bracket - Ignitor too far from Burner
-Check for Flame Sensor Malfunction/or False Ground
-Check Gas Valve
-Reset Thermostat
-Shut Off Power to Unit and Dis-Connect Cordset Plug from Wall Recep-
tacle.
Open Junction Box and Un-Reverse Polarity of Incoming Power Leads
-Check Ignitor Operation
-Check Flame Sensor for Malfunction or False Grounding
-Check Gas Valve
-Reset Thermostat
19562-1-0606