3.Using a flashlight, carefully inspect the burner areas for dirt, soot, rust, or scale.
If dirt, soot, rust, or scale accumulations are found, call your dealer and do not operate your heating section.
4.When you have completed your inspection, follow the
5.Observe unit heating operation, and watch the burner flame with the access panel removed, to see if it is bright blue. If you observe a suspected malfunction, or that the burner flames are not bright blue, call your dealer. See Fig. 5. Some yellow flame may be present due to the pan- el being removed.
6.Replace burner compartment access panel.
Fig. 5 — Proper Flame Appearance
Unit Panels — After performing any maintenance or service on the unit, be sure all panels are securely fastened in place to prevent rain from entering unit cabinet and to prevent disruption of the correct unit airflow pattern.
REGULAR DEALER MAINTENANCE
In addition to the type of routine maintenance you might be willing to perform, your unit should be inspected regularly by a properly trained service technician. An inspection (preferably each year, but at least every other year) should include the following:
1.Inspection of all flue product passages — including the burners, combustion baffles, heat exchanger, flue collec- tor box, and vent pipe.
2.Inspection of all combustion- and
3.Close inspection of all gas pipes leading to and inside your unit.
4.Inspection, and if required, cleaning of the condenser and evaporator coils.
5.Inspection, and if required, cleaning of the evaporator drain pan.
6.Inspection, cleaning, and lubrication of blower wheel housing and motor.
7.Inspection of all supply- and
8.Inspection of the unit base to ensure that no cracks, gaps, etc., exist which may cause a hazardous condition.
9.Inspection of the unit casing for signs of deterioration.
10.Inspection of all electrical wiring and components to assure proper connection.
11.Inspection for leaks in the refrigerant circuit. Pressure- check to determine appropriate refrigerant charge.
12.Operational check of the unit to determine working con- ditions. Repair or adjustment should be made at this time.
13.Your servicing dealer may offer an economical service contract that covers seasonal inspections. Ask for further details.
Complete Service Instructions can be found in the unit Installation,
BEFORE YOU CALL FOR SERVICE
CHECK FOR SEVERAL EASILY SOLVED
PROBLEMS
If insufficient heating or cooling is suspected:
( ) Check for sufficient airflow. Check the air filter for dirt. Check for blocked return- or
If your unit is not operating at all, check the following list for easy solutions:
( ) Check to be sure that your thermostat temperature selector is set above the indoor temperature during the heating season, or below the indoor temperature during the cooling season. Be sure the SYSTEM switch is in the proper HEAT or COOL position and not in the OFF position.
( | ) Is the electrical supply switch ON? Are any fuses blown, |
or has the circuit breaker tripped? | |
( | ) During the heating season, check the manual shutoff valve. |
Is this lever parallel with the pipe, indicating that the valve is open? Or is the lever at a right angle, indicating that the valve is closed? If closed, has the gas been shut off for safety rea- sons? Otherwise, you may open the valve and follow the start- up procedures listed in this manual.
NOTE: Before proceeding with the next check, turn off the electrical power supply to the unit. Remove the control access door.
( ) During the heating season, check the control dial on the gas valve. Is it in the ON position? If it is not, be sure it has not been turned off for the purpose of safety. If nothing else seems to be amiss, follow the
( ) If your unit still fails to operate, call your servicing dealer for troubleshooting and repairs. Specify the model and serial numbers of your unit. (Record them in this manual in the space provided.) If the dealer knows exactly which unit you have, he may be able to offer suggestions over the phone, or save valuable time through knowledgeable preparation for the service call.
IN CASE OF TROUBLE
If, after performing the above, unit performance is unsatis- factory, shut off the unit and call your dealer.
Dealer’s Name _____________________________________
Telephone No. _____________________________________
Unit Model ________________________________________
Unit Serial Number _________________________________
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