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11. TROUBLESHOOTING
PROBLEMS
CAUSES
SOLUTIONS
1. Sudden drop in heating performance
after normal heating sequences.
Ash build-up in front of the lower air
inlet that prevents the combustion air
from entering the combustion chamber,
sooting up the exchangers and flue.
Unclog the air inlet and clean the
exchangers and flue pipe.
2. Does not heat well from the start ,
lacking draft
Barometric damper adjusted wrong
(opens too much). Too much
restriction in the smoke pipe (too long
or too many elbows).
Adjust the barometric damper to
maintain the draught at -.06 " W.C.
Reduce the distance to the chimney to
10 feet max. Use 45 degree elbows
when possible. Do not use more than 3
90 degree elbows.
3.Furnace burn well, plenum gets hot
but there is little heat in the house.
Poor ventilation system design, low
static pressure, bad cold air inlet vs
warm air outlet ratio.
Redesign the ventilation system.
4. Furnace burn excessive amount of
wood
The wood thermostat is always calling
for heat (too close to a cold air draft).
Damper constantly open. Deficient
insulation of the house. Ash drawer
opened or leaking air. Furnace too
small.
Move the thermostat. Adjust the air
intake damper . Balance the ventilation
system to increase the heat input in the
room where the thermostat is located.
5. Fan start-up is too slow.
Fan “ON” setting too high. Return air is
too cold (temperature lower than 65
degrees). Limit control not well located
in the warm air plenum.
Lower the temperature starting point.
Usually, the limit control is set at 150
degrees, we can under certain
conditions, reduce this temperature.
Reduce the fresh air flow. Relocate the
limit control.
6. A lot of creosote, moderate heat
output.
Wet wood, lack of draught. Barometric
damper not properly adjusted. Sooted
up chimney.
Use dry wood. Adjust the barometric
damper. Clean the chimney flue and
the furnace exchangers.
7. Furnace burns well but the plenum
does not get hot enough.
Bad quality of wood. Too much air
return, not enough heat outlets.
Deficient ventilation system.
Use only well seasoned hard wood.
Redesign the ventilation system.
IMPORTANT NOTICE
FOR INSTALLATION OF A CENTRAL HEATING SYSTEM, IT IS HIGHLY
RECOMMENDED TO CONSULT A HEATING SYSTEM VENTILATION SPECIALIST
N.B.:STOVE BUILDER INTERNATIONAL INC. IS NOT RESPONSIBLE FOR POOR
APPLIANCE PERFOMANCES, DUE TO AN IMPROPER INSTALLATION.
