1. Wait 10 minutes: Do not turn the air conditioner off and then back on right away.  Wait at least 10 minutes after shutting the unit off to allow the refrigerant gas pressure in the system to equalize.  This extends the compressor’s lifespan.

2. Take time to clean: Each month the air conditioner is in operation, clean or replace the air filter. Every year, clean the condenser coils (on the back of the unit) and the base of the air conditioner—which may require opening up the cabinet.  Although most moisture evaporates, some water may sit stagnant—developing mold and mildew.  NOTE: DO NOT drill a hole in the bottom of the unit to drain the condensate water—it helps cool the condenser coil.

3. Check the temperature: The difference in temperature between the room air coming into the unit and the cold air blowing out should be more than 15 degrees, any less and the unit may need cleaning or servicing.  Run the A/C all year long—if the temperature inside and out is warmer than 60 degrees.  If colder than 60 degrees, turn the unit off so the cooling coil does not freeze.

Go to the homepage and click on Repair Help.  Scroll down and choose Air Conditioners.  Learn how air conditioners work.  Find troubleshooting tips to determine what is wrong with your air conditioner.  Get answers to common questions, such as “What size unit do I need for my room?”

Between June 11, 2008 and June 30, 2008, the first 100 customers will get a 10% discount on this Air Conditioner Timer.

Make sure your home is cooled before you arrive (without the expense of running your A/C unit all day) by using a timer.  This heavy-duty grounded 24-hour timer (with an easy-set dial) allows three on and off settings per day. ($9.95)