American Standard Noncondensing Gas Furnaces User's Information Manual page 18

The problem solver.
A furnace is not a household appliance. It is complex and
requires professional maintenance and repair.
That's why attempts at "do-it-yourself" repairs on an in-
warranty unit may void the remainder of your warranty.
Other than performing the simple maintenance recom-
mended in this manual, you should not attempt to make
any adjustments to your furnace. Your dealer will be able
to take care of any questions or problems you may have. A
periodic inspection of your furnace should be made by a
qualified service agency at the start of each heating season.
Keep your furnace looking like new for years.
Clean the enamel finish of your furnace with ordinary soap
and water. For stubborn grease spots, use a household
detergent. Lacquer thinner or other synthetic solvents may
damage the finish.
Save time and money. Before calling for service, check the following:
Problem
No Heating - Blower
Does not operate
Insufficient Heating -
Blower operates
continuously
No Heat - Vent motor
is running
Unusual Noise
WARNING:
CARBON MONOXIDE POISONING HAZARD
Failure to follow the installation and operation instruc-
tions for the venting system's operation could result in
carbon monoxide poisoning or death.
Page 6
Possible Trouble
1. Thermostat set incorrectly.
2. Blown fuse or tripped circuit breaker.
3. Defective component.
4. Burner does not ignite.
5. Main gas line turned off.
6. Blower door removed or ajar.
7. Lockout
1. Dirty air filters.
2. Blocked supply or
return registers.
Restricted or plugged furnace
condensate drain.
WARNING:
Do not touch igniter. It is extremely hot. Failure to
follow this warning could result in severe burns, other
injury, property damage, or death.
CAUTION:
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dan-
gerous operation.
Verify proper operation after servicing.
Possible Remedy
1. Adjust thermostat See operating
instructions
2. Replace or reset protective device
or call for servicer.
3. Most controls are automatic and will
recycle. If your unit still does not
operate call for servicer.
4. Call servicer.
5. Have gas company check.
6. Close door securely to restore power
to blower and gas valve.
7. Turn power on-off-on-off twice
in 30 secs.
1. Clean or replace filters.
2. Make sure registers are open and
No obstacles blocking off the air.
1. Remove drain clamps to condensate
trap and drain pan outlet
2. Flush or clear drain blockage.
3. Reinstall clamps.
Call your servicer
Pub. No. 32-5034-02