Carrier 58CMA - Manual (Page 7)

7
If you have replaced a disposable filter with a perma-
nent washable filter, it may be cleaned if it is dirty.
Wash filter in a sink, bathtub, or outside with a garden
hose. Always use cold tap water. A mild liquid deter-
gent may be used if necessary. Spray water through
filter in the opposite direction of airflow. Allow filter
to dry.
5. Re-install clean air filter.
6. Turn on electrical supply to furnace.
A CHECK-UP CHECKLIST
Your furnace represents an important investment in
your family’s comfort and your home’s value. To keep
it performing properly and as a preventative to future
problems, have a trained service specialist give your
furnace a professional check-up annually. The fol-
lowing checklist can be used as a guideline to proper
service:
• Check flue and secondary tube passage ways including
chimney —
clean if necessary.
• Change oil filter.
• Change nozzle.
• Check and adjust combustion and draft.
• Inspect all vent piping inside structure for deterioration
and vent terminations outside the structure for blockage.
• Check oil pipes leading to and inside of your furnace
for leaks.
• Inspect and clean the blower motor and wheel.
• Inspect and change or clean air filter if necessary.
• Inspect all supply- and return-air ducts for obstruc-
tions, air leaks, and insulation. Remedy any problem
when necessary.
• Inspect the return-air duct connections at the furnace to
ensure it is physically sound, sealed to the furnace
casing, and terminates outside the space containing the
furnace.
• Inspect electrical wiring, connections, and components
for loose connections.
• Examine the physical support of the furnace. Support
should be sound with no cracks, sagging, gaps, etc.
around the base.
• Check furnace for any obvious signs of deterioration.
BEFORE YOU REQUEST
A SERVICE CALL
If your furnace is not operating or not performing
properly, you may save the expense of a service call by
checking a few things yourself before calling for
service.
FOR INSUFFICIENT AIRFLOW:
• Check for dirty air filters.
• Check for blocked return-air or supply-air grilles
throughout your home. Ensure they are open and
unobstructed.
If problem still exists, call your dealer for service.
IF FURNACE FAILS TO OPERATE:
Follow this checklist step by step, advancing to the next
step only if furnace fails to start.
• Check thermostat for proper temperature. Is thermostat
set above room temperature?
• Is thermostat set on HEAT?
• Check fuses and circuit breakers. Is electrical supply
on?
• Is valve in oil supply pipe in open position?
• Is the ignition control on the burner not in lockout? The
red button on top of the control must be depressed for 3
sec in order to reset the control.
• Check for obstructions around the vent termination.
If furnace still fails to operate, call your service represen-
tative. For your convenience, record furnace product and
serial numbers on page 2. Should you ever require ser-
vice, you will have ready access to the information need-
ed by your service representative.