Boiler Installation and Owners Manual
21
LDJ991_E01_R03_2006.03
Models LDJ991 and LDJ991-10
Inefficient Operation and/or Operating Too Hot
Loses fire when
weather warms up or
won’t stay lit in low
fire mode
Too much time between idle cycles
(indicated by corn burned down into
the pot).
Try changing timer — if set at 2 & 10,
change to 2 & 8 (experimentation may
be necessary).
Not enough time between idle cycles
(indicated by fire pushing out the top).
Try changing timer — if set at 2 & 6,
change to 2 & 7 (experimentation may
be necessary).
Problem
Explanation
What to do
Burns too hot / runs
out of corn
Excessive draft will pull too much air
through the burn chamber, causing the fire
to burn faster than the corn can be sup-
plied.
Chimney draft should never exceed
0.06 inches water column draft. Verify
correct installation; install second
barometric regulator if necessary
(refer to “Barometric Draft Control
Information” on page 31).
Boiler keeps opening
high limit switch
System not full of water and not at normal
operating pressure.
Check for cause of water leakage and
loss of operating pressure.
Circulation pump not operating correctly.
Check circulation pump.
Loses fire when
weather warms up or
won’t stay lit in low
fire mode
Too much time between idle cycles
(indicated by corn burned down into
the pot).
Try changing timer — if set at 2 & 10,
change to 2 & 8 (experimentation may
be necessary).
Not enough time between idle cycles
(indicated by fire pushing out the top).
Try changing timer — if set at 2 & 6,
change to 2 & 7 (experimentation may
be necessary).
Problem
Explanation
What to do
