(When its hot outside and it's hot inside too!!)

• Is the thermostat set to the proper position (lower than the room temperature)?
• Have you checked (1) fuses (2) circuit breaker (3)disconnect switch?
• Is the air filter clean?
• Are the supply registers open?
• Are the return air vents unobstructed?
• Is the condensing unit (outside section) running?
  1. Fan & compressor?
  2. Fan only?
  
• (If the air being exhausted is not appreciable higher than outside air, shut unit off and call a technician.)
• Is the condenser coil clean? (Check instruction book for cleaning or call a techinician). DO NOT ATTEMPT TO CLEAN THE CONDENSER WITHOUT TURNING OFF THE POWER.
• Is there ice on the pipes at the evaporator coil (inside section)? (If there is, cut off unit and call a technician.)
• Are the condenser coils frozen over (not just light frost)?
• (If so, cut off unit and call a technician.)
• Is the condensing unit unobstructed (overhanging limbs; shrubbery)?
• If you have small children or pets, build an open fence around condenser with a gate for servicing.
• Coils need to be cleaned annually to maintain efficiency.

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