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
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
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
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 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 in the proper HEAT or COOL position and not in the OFF position.
( ) If using ComfortLink™ control, check Scrolling Mar- quee to be sure unit is not in SERVICE TEST mode. 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 manual gas 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.
( ) 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 is incorrect, 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 valu- able 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 _________________________________
10
