Product Manual

Section 14 - Troubleshooting
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Initial Diagnosis:
When an operating problem occurs, a determination must be made whether or not the fuel
pump is pumping a sufficient amount of oil that contains no air or water.
Take these steps:
s Adjust the burner air regulator to -0- PSI.
s Turn pre-heater rocker switch off (red light off).
s Shut off oil supply line valve to the burner.
s Remove the fuel supply line from the supply tank.
s Attach a flexible piece of tubing at least 3 feet long to the outlet on the return side of
the oil by-pass regulator.
s Insert the tubing into the bottom of a large jar.
s Jump the cad cell circuit and start the fuel pump (see below).
s Attempt to fill the jar above the open end of the tubing.
s If the pump will not pump fuel, attempt to prime the pump (Section 10). If the pump
won’t prime refer to Flow Chart Item B.
If no air or water is present the flow must be determined.
s Pump fuel for 1 minute into a graduated container, if the flow rate is less the 250
MILS/Minute (8-1/2 Ounces), refer to Section 14 Troubleshooting Chart Item B.
If the flow rate is more than 250 MILS/minute (8-1/2 Ounces), refer to Troubleshooting
Chart Item C.
After repairs are made, remove the cad cell jumper wire, and reconnect the cad cell wires
to the oil primary.
By-passing the oil primary safety circuit:
Some trouble-shooting test may require the cad
cell safety circuit in the oil primary control to be
bypassed, to do this:
s Remove the 2 yellow wires from the F-F
terminals on the oil primary control.
Remove two yellow wires
WARNING: DO NOT OPERATE YOUR HEATER IF THE OIL PRIMARY
SAFETY CIRCUIT IS NOT WORKING!
!