No air movement
While the air conditioning unit cools the air, your system’s fan or
air handler moves it through the house. Check to make sure that the
air conditioner is on and operational, and if you’re not getting air
flow, check out our air handler troubleshooting guide. If your air
conditioner does not seem to be functioning at all, check for a
No cold air
There are a few potential causes if air is moving through your home,
but not cooling down. Dust and debris could build up on the
evaporator, making heat exchange less efficient. Use our air
conditioner maintenance guide for tips on how to clean the
evaporator. Check to make sure both the inside and outside units are
working, and that the thermostat is set at the desired temperature. If
the problem still isn’t clear, contact a Trane Comfort Specialist.
Drain pan overflowing
The drain pan below your interior air conditioning unit collects
condensation, and an electric pump usually moves the water to a nearby
drainage pipe. If the pan is overflowing, check for a kink or block in
the drainage line, and make sure that the pump is plugged in and working.
System running constantly
If your air conditioner seems to be running constantly, your
thermostat could be set too high. Reset your thermostat, then adjust
the temperature to a comfortable level. If the unit is still running
continuously, contact a Trane Comfort Specialist.
Contact an air conditioner troubleshooting pro
If the issue can’t be determined based on this guide, contact your
local Trane Comfort Specialist. They’ll be able to diagnose the
problem and get your air conditioner running properly, so you and your
family stay cool and comfortable.