1. Hard Lockout
Also indicated by flashing green light on R7184 Oil Primary
2. “Hard Lockout”
message on R7284 Oil Primary
When a hard lockout occurs the burner shuts down and will not restart until the Oil Primary’s manual reset button is pressed. The Oil Primary will enter the Hard Lockout mode when the burner fails to light, loses flame during run three times or senses flame during pre-purge or post purge. The following is a summary of corrective actions:
1. No fuel to burner
-Check that the oil tank is not empty.
-Check that the manual shut off valve is open.
-Check fuel lines (and filter) are free of obstructions.
-Check fuel lines are fully purged of air. Use the pump priming feature to purge the system of air
-Check that the burner motor is spinning and the pump is generating adequate pressure.
-Check operation of fuel valve.
2. Nozzle Clogged
-Check the condition of the nozzle and replace if necessary.
3. No Spark
-Check the electrodes, spring contacts and high voltage wires.
-Check ignition transformer for proper operation
4. Air Flow Too High or Too Low
-Check for excessive airflow or draft causing flame to leave burner head.
-Check for back pressure causing flame to be erratic
-Check for excessive soot build up in the burner and flue
-Check burner adjustments (refer to burner manufacturers instructions)
5. CAD Cell Defective
-Check CAD cell for proper alignment and clean if necessary
-Check CAD cell operation, refer to Trouble Shooting section D’s Erp 5 for procedure.
