Hints And Information - COZY DVCF402D Owner's Manual

ISSUE
5. Burner comes "ON",
blower comes "ON", but
burner cycles "OFF" and
"ON" with blower "ON".
6. Furnace operates but turns
"OFF" before room
temperature is attained.
7. Furnace operates but
will bnot shut "OFF"
when room temperature
is attained.
8. Abnormal operation.
9. Burner comes "ON" but
goes "OFF" after operating
for no apparent reason.

HINTS AND INFORMATION

If your furnace fails to work correctly, you may avoid the
inconvenience and cost of a service call by checking the
troubleshooting section on page 34-35 before you call
for service.
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
DO NOT store or use gasoline or other flammable vapors
and liquids in the vicinity or this or any other appliance.
HOW TO ORDER REPAIR PARTS
When ordering repair parts, always give the following
Information:
1. MODEL NUMBER
2. MFG. DATE CODE
3. PART NUMBER
4. PART DESCRIPTION
POSSIBLE CAUSE(S)
A. Furnace operating over-rate.
B. Line voltage too low.
C. Recirculation.
A. Thermostat location.
B. Defective thermostat.
A. Thermostat wiring defective.
B. Thermostat location.
A. Blower noise.
B. Expansion noise ticking.
C. Selector switch defective
(2-speed).
A. Vent tube and air inlet tube
improperly installed.
CORRECTIVE ACTION
pressure above.
Check line voltage to motor, if below 115 volts the motor will run too slow.
Heated air discharging against an object causing recirculation, such as a
hall installation or a large piece of furniture within 4' of discharge.
Check location of the thermostat. It should not be in the path of warm air
discharge from the furnace, near a lamp, or above a TV set or stereo.
Check the thermostat calibration or replace.
Check the thermostat wiring from furnace to the thermostat - may be
shorted together by a nail or staple.
Check thermostat location - if on an outside wall or there is a hole in wall
behind the thermostat causing cold air to contact the thermostat, relocate
the thermostat.
Check the motor mounts - they may be loose. Fan blade could be out
of balance. Set screw may be loose on the motor shaft. Blower may be
rubbing on the fan shroud. Motor may need oiling. Correct as needed.
Check installation - casing may be twisted or not level when installed.
Expansion slip joint may be binding; check by removing vent cap assembly
from outside wall.
During normal furnace operation the motor will be on "LOW" speed
when operating on minimum input capacity and on "HIGH" speed when
operating at maximum input capacity. If there is no change in motor
speed, replace the selector switch.
Check the vent tube and air inlet tube. Follow the installation instructions.
Be sure joints are tight and both tubes are in place. Use only the vent tubes
furnished. Do not extend tubes beyond their original length.
All parts listed herein may be ordered from your equipment
supplier. The Model Number of your Cozy wall furnace will
be found on the nameplate near gas valve, inside control
compartment.
WHAT TO DO IF YOU SMELL GAS
• Open all of the windows.
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Do not use any phone or cell phone in your building.
• Extinguish any open flame.
• Immediately call your gas supplier from a neighbor's
phone. If you cannot reach your gas supplier, call the fire
department.
Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
COUNTERFLOW DIRECT VENT GAS WALL HEATER
35