How to Guide

control if ooeration is not as described.
To completely troubleshoot an oil burner installation,
check the burner, ignition transformer, oil primary control,
and cad cell for proper operation and condition.
CHECK CAD CELL AND R8184M
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FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE, SEVERE IN-
JURY, OR DEATH
Troubleshootingisdonewiththeequipmentpowered.
Observe all necessary precautions to prevent elec-
trical shock or equipment damage.
Usethefollowing equipmenttotroubleshoottheR8184M
and cad cell.
l Screwdriver
l 0 to 150 Vat voltmeter
l Insulated jumper wire with both ends stripped
l Ohmmeter
l 2700 Ohm resistor (optional)
Burner Motor Does Not Start When Thermostat Calls
For Heat
PRELIMINARY CHECKS
1. Make sure limit switch is closed and that contacts are
clean.
2. Check for line voltage power at the oil primary. With
thermostat calling for heat, voltage between black and
white leadwires on oil primary should be 120 Vat.
CORRECTIVE AC
BURNER STARTS
Trouble is in thermostat
circuit. Check thermostat and
wiring connections.
Cad cell is seeing external
light, is defective, or cad cell
connections are shorted.
Go to step 3.
Eliminate external light
source or permanently shield
cad cell.
ION
BURNER DOESN’T START
Trouble is in cad cell or oil
primary. Go to step 2.
Disconnect power; check all wiring
connections. Tighten any loose
connections, if necessary, and retest.
If burner motor and ignition still don’t
start, replace oil primary. lf ignition is
on and burner motor is off, check
burner motor and wiring connections
to motor. Replace burner motor, if
necessary.
Replace cad cell with Part No.
130367.
Burner Motor Starts But Flame Is Not Established
Check burner and ignition transformer per manufacturer’s recommendations. This is not an oil primary or cad cell problem.
7 68-0111