13
Form 6104 BCF5-R0301
Instruction Manual – Model CF500/CF800 Oil Burner
Start the burner
Do not proceed unless all prior steps in this
manual have been completed. Failure to
comply could result in severe personal injury,
death or substantial property damage.
Do not attempt to start the burner when excess
oil has accumulated, when the appliance is
full of vapor or when the combustion chamber
is very hot. Do not attempt to re-establish
flame with the burner running if the flame
should be extinguished during start-up,
venting or adjustment. Allow the unit to cool
off and all vapors to dissipate before
attempting another start. Failure to comply
with these guidelines could cause an
explosion or fire, resulting in severe personal
injury, death or substantial property damage.
If control is not an R7184 refer to
manufacturer’s literature for specific
control.

❏ Starting the burner and venting air

Priming the pump
1. Initiate a call for heat.
2. While the ignition is on, press and release the reset button
(hold ½-second or less). If the control has not locked out
since its most recent complete heat cycle, the lockout time
will be extended to 4 minutes (45 seconds in earlier units),
and the ignition will remain on the entire heat cycle.
3. Bleed the pump until all froth and bubbles are purged. If
prime is not established within the extended lockout time,
the control will lock out. Press the reset button to reset the
control and return to step 2.
The reset button can be held for 30 seconds at
any time to reset the control’s lockout counter
to zero and send the control to standby.
4. Repeat steps 2 and 3, if needed, until the pump is fully
primed and the oil is free of bubbles. Then terminate the
call for heat, and the control will resume normal operation.
Resetting from restricted lockout
• If the control locks out three times in a row without a
complete heat cycle between attempts, the lockout
becomes restricted. A qualified service technician
should be called to inspect the burner.
Disable function
• Any time the motor is running, press and hold the reset
button to disable the burner. The burner will remain off
as long as the button is held and will return to standby
when released.
Cad cell resistance check
• While the burner is firing, and after the ignition has been
turned off, press and release the reset button (hold ½-
second or less) to check the cad cell resistance. The LED
will flash 1 to 4 times, depending on the cad cell
resistance (see the table below). For proper operation, it
is important that the cad cell resistance is below 1600
Ohms.
LED flashes Cad cell resistance
1 0-400 Ohms
2400-800 Ohms
3 800-1600 Ohms
4more than 1600 Ohms
LED Indicator key
LED Status
On Flame sensed
Off Flame not sensed
Flashing
(½-second on, ½-second off)
Lockout/
Restricted lockout
Flashing
(2 seconds on, 2 seconds off) Recycle