Reflect-O-Ray
®
Oil Fired EDS 3.5
Installation, Operation & Service
Combustion Research Corporation
Page 43
TROUBLE SHOOTING FLOW CHART
Were burner(s) isolated during
high pressure leak test?
New Installation?
YES
NO
Turn up thermostat
NO
Are oil lines purged of air?
YES
YES
Purge oil lines of all air.
NO
Does the Vacuum
Exhauster start?
Is there power to the
Vacuum Exhauster?
Disconnect power. Does
blower wheel rotate
freely?
NO
YES
Is there 120 volt power at
the burner junction box?
Check control panel, wiring,
circuit breakers, and any
relays that may be used.
NO
YES
Check wiring and repair
as needed.
NO
YES
Is there 120 volt power
at the burner terminals?
Is there 120 volts to the
pressure switch?
NO
Replace motor.
NO
Is blower obstructed?
YES
Remove obstruction and
realign blower wheel.
YES
YES
Is the vent pipe, air inlet or
vacuum exhauster wheel
blocked or obstructed?
YES
NO
Check wiring and repair
as needed.
NO
Are the air hoses
connected to the
pressure switch leak
free and secure?
NO
Repair and replace
hoses as needed.
Place a TEMPORARY jumper
wire across there terminals
on the pressure switch.
YES
Is there 120 volts at the
burner terminals
1
Clear all obstructions and
clean blower wheel.
YES
Replace oil pump and
solenoid valve.
Does the pressure switch
close?
NO
Check system vacuum
settings.
NO
Replace pressure
switch.
YES
NO
Check wiring and repair
as needed.
Is the burner motor
operating?
Is there 120 volts at the
motor?
NO
NO
Replace ignition control
Replace motor and
capacitor.
YES
YES