6 Fault Finding Guide
No Power
Burner fails
to run
No Demand
Check isolator
Check controls
Check fuse
Burner lockout
Fan/limit
thermostat
Room stat
Timer
Heat/vent switch
On/ off switch
Burner starts
ignition
sequence but
fails to light
and lockout
occurs
Fuel Feed
incorrect
Check oil
pressure is
correct
Check that head
of gravity is
suffi
cient
Check that
suction lift is not
too great (two
pipe system)
Check the bypass
plug is present
Check valves,
fuel feed, fi lter
nozzle for
blockages or
restrictions
Possible fuel
contamination
Check control
Check electrode
Air in system
Restricted fuel
feed
Check burner air
setting.
Bleed system
Fuel / Air
problem
No Spark
Summary of Contents for OUH 2 100
Page 20: ...Wiring Diagram 33 65 245 Models OUHA OUHC40 ON OFF Riello Oil Fried Burner...
Page 21: ...Wiring Diagram 33 65 246 Models OUHA 60 70 ON OFF Riello Oil Fried Burner...
Page 22: ...Wiring Diagram 73 65 010 Models OUHA 90 100 ON OFF Riello Oil Fried Burner...
Page 23: ...Wiring Diagram 33 65 247 Models OUHC 60 100 ON OFF Riello Oil Fried Burner...
Page 24: ...Wiring Diagram 33 65 248 Models OUHA OUHC 40 HI LOW Riello Oil Fried Burner...
Page 25: ...Wiring Diagram 33 65 249 Models OUHA 60 70 HI LOW Riello Oil Fried Burner...
Page 26: ...Wiring Diagram 73 65 011 Models OUHA 90 100 HI LOW Riello Oil Fried Burner...
Page 27: ...Wiring Diagram 33 65 250 Models OUHC 60 100 HI LOW Riello Oil Fried Burner...
Page 35: ...Turbulator positions in models 40 70 8 off Turbulator positions in models 90 100 12 off...
Page 43: ...Notes...
