R7284B,P,U,G ELECTRONIC OIL PRIMARY, ENVIRACOM™ ENABLED
11 69-2467EFS—07
Low Voltage
XX% low
59
•
Supply voltage is low to the control.
•
Measure the voltage across screw terminals “2” and “3”
— If it's greater than 22VAC and the error does not clear, replace control.
— If it's less than 22VAC, review appliance wiring.
Internal Error 18, 58
•
An error has been detected inside the control. Replace control if the error persists.
Flame Proven
Out of
Sequence
34
•
The cad cell is permanently in a low resistance state. It should typically read much higher than
20,000 ohms when no flame is present.
•
Set the display to display cad cell resistance.
•
Shield the cad cell from light.
•
If the display shows less than 20,000 ohms, unplug the cad cell,
— If display does not read 999999 ohms, replace control.
— If it does read 999999 ohms, replace cad cell.
Flame Proven
During On
Delay
23
•
Flame was proven during the valve on delay period. Check the oil valve for proper operation.
•
If the system does not have an oil valve, set the valve on delay to 0.
Flame Proven
During Off
Delay
24
•
Flame remained lit during the burner off delay. Check the oil valve for proper operation.
•
If the system does not have an oil valve, set the burner off delay to 0.
Exceeded Max
Recycles
22
•
Flame was lost more than the allowed number of times. The burner lights, but does not remain lit.
•
Check that the fuel tank is not empty.
•
Check the fuel supply lines (and filter) for obstructions or air
— Use the pump priming feature to purge the system of airCheck
•
Check that the burner motor is spinning and the pump is generating adequate pressure.
•
If present, check operation of the oil valve.
•
If the problem persists, proceed to the “Cad Cell, High During Run” corrective action.
EnviraCOM™
Error
91
•
Communications error has been detected.
•
Remove all devices from the EnviraCOM™ connections, 3-pin plug and screw terminals “1-2-3”.
— If the error does not clear within one minute, measure the voltage on terminals “2” and “3”.
— If the voltage across terminals “2” and “3” is between 20VAC and 30VAC, replace control.
— If it is outside of that range, review appliance wiring. There should be approximately 24VAC
across “2” and “3”.
Cad Cell
High During
Run
4
•
The cad cell resistance is higher than normal while running, the system is in need of a tune up.
•
Check for proper alignment of the cad cell and clean the eye if necessary.
•
Check if the pump is generating adequate pressure.
•
Check burner adjustments (refer to burner manufacturers instructions).
•
Check for excessive soot build up in the burner and flue.
•
Check for flue blockage.
Flame Proven
Late in Trial
9
•
The burner lit very late during the trial for ignition and is susceptible to not lighting.
•
Check cad cell for proper alignment and clean if necessary.
•
Check burner adjustments (refer to burner manufacturers instructions)
•
Check electrodes and spring contacts (if equipped) and adjust per manufacturers recommendations.
•
Check if the pump is generating adequate pressure.
•
Check the fuel supply lines and filter for obstructions.
Table 7. Display Alarm Information. (Continued)
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