11
USSC
TROUBLE SHOOTING AND PROBLEM SOLVING
1. Problem:
Smoke puffs from furnace
Solution:
A. Check chimney draft. Check for blocked chimney
or flue pipe. Use mirror to check chimney clearance.
B. Check ash pit — if it is too full, empty.
C. Make sure furnace room is not too airtight.
D. Make sure all of chimney mortar connections are
airtight.
E. Check ash drawer. Make sure it’s airtight.
F. Check chimney for possible down-draft caused
by taller surrounding trees or objects. Correct with
proper chimney vent cap.
G. Check the possibility of a cold chimney forcing cool
gases backward. Remedied by properly insulating
chimney with non-combustible liner — non-combus
-
tible insulation.
H. Fuel may be too green.
I. Make sure no other fuel burning devices are con
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nected to the chimney impairing the draft.
J. Check chimney draft, it should be .06 inches of
water column. This service is provided by a certified
chimney sweep.
2. Problem:
Inadequate heat being delivered to your home
Solution:
A. Check home insulation — is it adequate?
B. Check hook-up to furnace — is it installed correctly?
C. Cool air inlet may be inadequate or furnace room
too airtight.
D. Your wood fuel may be too low grade. Hardwoods
are recommended.
E. Make sure your hot air duct (and other duct work)
is airtight.
F. If furnace room is warm but your home isn’t, check
back draft dampers.
G. Is air to the blower available?
3. Problem:
Excess smoke or flames coming out door when refueling
Solution:
A. Wait 15 seconds and open door SLOWLY — then
refuel.
B. Check length of flue pipe to chimney. Your unit
should be within six (6) feet of your chimney.
C. Make sure chimney cap is not too close to the top
of the chimney.
D. Check chimney draft — make sure chimney flue
pipe is clean and chimney is of adequate height.
E. Make sure you’re not suffocating the fire with exces
-
sive amounts of unburned wood.
F. Slide baffle should be pulled out prior to load door
opening.
4. Problem:
Distribution blower vibrating
Solution:
A. Tighten blower wheel to motor shaft.
B. Check for bad fan bearings.
5. Problem:
Distribution blower continues to run or will not run
Solution:
A. Check fan limit or heat sensor and cable.
B. Check to see that blower is properly wired.
(See Wiring and Assembly Instructions).
C. Check fuse box or power source.
D. Check power supply.
6. Problem:
Draft blower continues to run or will not run
Solution:
A. Check wiring.
B. Check thermostat or thermostat wire for short.
C. Make sure temperature is calling for heat.
7. Problem:
Odor from first fire
Solution:
A. The odor from new steel should disappear in a few
hours.
B. If the odor remains, call you dealer immediately. A
bad weld can cause a fume leak.
8. Problem:
Excessive Creosote
Solution:
A. Check the grade of wood you are burning.
B. Make sure your unit is serviced by its own proper
chimney.
C. Check length of flue pipe and its connections.
D. Make sure you are burning the smallest, hottest fire
to adequately heat your home.
E. Also see Solutions to Problem one.
9. Problem:
If the fire goes out or does not hold over night
Solution:
A. Poor Draft.
B. Incorrect damper settings.
C. Improper firing methods if burning coal.
D. More combustion air needed.
E. Coal not sized to the furnace. We recommend 1”
to 3” diameter pieces of coal.
F. Ashes, if allowed to accumulate in the ash pit, will
not allow passage of the required air for combustion.
Keep ash pit clean.
G. This furnace is not to be used with an automatic
stoker unless so certified.
Summary of Contents for NITED STATES STOV 1602M
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