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Troubleshooting
Problem Possible Cause Remedy
Insufficient heating or air conditioning 1. Dirty filters
2. Air not circulating freely
3. Blocked outdoor coil
1. Clean or replace
2. Check supply registers and return grills for blockage
3. Clear away leaves or other debris
Failure to operate 1. Power off in ON position
2. Open circuit breaker or burned-out fuses
3. Improperly adjusted thermostat
1. Make sure main switch is on
2. Reset circuit breaker, or replace burned-out fuses
3. Check setting, adjust thermostat
No Heating or Air conditioning - Blower does not operate Blower door removed or ajar Close door securely to restore power to blower
Unusual Noise Call your local servicer

Consult our Troubleshooting FAQs for the answers to these questions:

1. Can I get technical support from Trane to troubleshoot/repair my own equipment?

2. Why do my lights flicker when my air conditioner turns on?

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Guide To Cooling
Want to learn more about the inner workings of air conditioning? View the Trane Guide to cooling.
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Trane Residential is a leading global provider of indoor comfort systems. Trane’s offerings include energy-efficient cooling and heating solutions for homes, air conditioners, heat pumps, furnaces, air humidifiers, thermostats, parts and service.
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