The Problem Solver – Air Handlers
Before you call for service, check the following:
Problem | Possible cause | Possible Remedy |
Insufficient heating or cooling | 1. Dirty filters | 1. Clean or replace |
| 2. Air not circulating freely | 2. Check supply registers and return grills for blockage |
| 3. Blocked outdoor coil | 3. Clear away leaves or other debris |
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Failure to operate | 1. Power off | 1. Make sure main switch is in on position |
| 2. Open circuit breaker or burned‑out fuses | 2. Reset circuit breaker, or replace burned‑out fuses |
| 3. Improperly adjusted thermostat | 3. Check setting, adjust thermostat |
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Unusual Noise |
| Call your local servicer |
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Whenever your house is to be vacant, arrange to have someone inspect your house for proper temperature. This is very important in below freezing weather. If for any reason your unit should fail to operate, damage could result, such as frozen water pipes.
NOTE: Improperly sized vents can cause the formation of condensate, combustion gas leakage and spillage, and an inoperable furnace.
This unit is not a household appliance. It is a complex self‑contained system that requires professional maintenance and repair. That’s why attempts at do it yourself repairs on an
NOTE: The blower motor bearings are factory lubricated and under normal operating conditions usually do not require servicing. Your local servicer can advise you if oiling is required. Your dealer should be able to take care of any questions or problems you may have.
Keep your unit looking like new for years.
Clean the enamel finish of your unit with ordinary soap and water. For stubborn grease spots, use a household detergent. Lacquer thinner or other synthetic solvents may damage the finish.
Just set the temperature you want.
Set temperatures by using the indicators on the thermostat* control. After that, your comfort control center (thermostat) will maintain a constant indoor temperature, regardless of changes in outdoor temperatures. Read your thermostat manual for directions on setting the temperatures.
Save energy with an electronic programmable thermostat.
With an electronic programmable thermostat* energy savings is easy. Just program the thermostat for the temperatures you are most comfortable with and it will automatically change settings up to four times a day. Special weekend and vacation schedules are also easily programmed for comfort and savings. Read your thermostat manual for programming instructions. If you want the optimum balance between comfort and the cost of running your system, we recommend keeping the temperature settings at 68°F for heating and 78°F for cooling.
Save energy by letting the thermostat do its job. Once you set the thermostat, keep subsequent adjustments to a minimum. Adjust it only when a new program is needed.
*Optional accessory
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