6.Observe unit heating operation. Watch the burner flame to see if it is bright blue. If you observe a suspected mal- function or if the flame is not bright blue, call your dealer.
WARNING
Components in heat section may be hot after unit has been started. When observing flame, be careful not to get close to or touch heating components. Serious personal injury may result.
7. Replace gas section access panels.
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, heat exchanger, and flue collector box.
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 condensate drain pan.
6.Inspection and cleaning of blower wheel housing and motor.
7.Inspection of all supply and
8.Inspection of the unit base for cracks, gaps, etc., 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 ensure proper connection.
11.Inspection for leaks in the refrigerant circuit. Pressure- check to determine appropriate refrigerant charge.
12.Inspection of fan wheels and housings, belt tension, and fan motor shaft bearings.
13.Operational check of the unit to determine working conditions. Repair or adjustment should be made at the time of inspection.
Your servicing dealer may offer an economical service con- tract that covers seasonal inspections. Ask for further details.
Complete service instructions can be found in the unit Controls,
BEFORE YOU CALL FOR SERVICE,
CHECK FOR PROBLEMS
THAT CAN BE EASILY SOLVED
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:
( ) If using a thermostat, check to be sure that your thermo- stat temperature set point is above the indoor temperature dur- ing the heating season, or below the indoor temperature during the cooling season. Be sure the thermostat mode is in the proper AUTO, HEAT, or COOL mode and not in the OFF mode.
( ) Check scrolling marquee to be sure unit is not in Service Test mode and that unit has not been disabled. Check set points are properly set.
( ) Is the electrical supply switch ON? Are any fuses blown or has the circuit breaker tripped?
( ) During the heating season, check the external manual shutoff valve. Is this lever parallel with the pipe, indicating that the valve is open? Or is the lever at the right angle, indicating that the valve is closed? If closed, has the gas been shut off for safety reasons? Otherwise, you may open the valve and follow the
NOTE: Before proceeding with the next check, turn OFF the electrical power supply to the unit. Remove the gas section access panels.
( ) During the heating season, check the switch 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 no safety hazards are present, 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 checks, unit performance is unsatisfactory, shut off the unit and call your dealer.
Dealer’s Name _____________________________________
Telephone No. _____________________________________
Unit Model _______________________________________
Unit Serial Number _________________________________
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