Osburn Cordova Series Installation And Operating Instructions Manual page 34

III. Main burner will not
light (continued)
IV. Soot deposits on glass
f i r e - p a r t s . c o m
V. Flame burns blue and
lifts off burner
VI. Frequent pilot outage
problem
VII. Flames impinge on
firebox top
A. Valve/Switches (continued)
10. Thermopile may not be generating sufficient
voltage (325 mV SIT)
11. Wall switch, thermostat, remote control, or
wires are defective
1. Flame impingement on logs
2. Improper venturi setting
3. Foreign material impeding burner
4. Air inlet blocked or restricted
5. Vent system is restricted or inadequate
1. Insufficient combustion air being supplied
2. Manifold pressure set too high
3. Vent system restricted
See V
1. Vent system is restricted or inadequate
2. Manifold pressure too high
10. Recheck using the millivolt meter.
The pilot flame may not be high
enough for the flame to properly
engulf the thermopile. If so, adjust
and reset. If voltage is still
insufficient, replace thermopile
11. Follow previous corrective action,
check switch and wiring. Replace
where defective
1. Adjust the log set to avoid direct
flame impingement. Follow log
placement instructions
2. Ensure the air shutter is properly set
NG = .21" (5mm) and LP = fully
open
3. Ensure that no foreign material
blocks burner flame ports
4. Clean air inlets
5. Conduct flue spillage test and correct
flue as required
1. Ensure that no foreign material
blocks air inlets and that the burner
shutter is correctly adjusted. Ensure
the vent is adequate
2. Check manifold pressure
3. Check vent system
1. Correct flue as required
2. Check manifold pressure as required
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