Heating and air conditioning articles
These heating and air conditioning articles and videos from Sears PartsDirect can help you get the most from your HVAC system. Find the answers to common questions and learn tips and tricks to keep your system heating and cooling effectively. For more DIY advice, check out our Heating and air conditioning repair help section for maintenance advice, common symptoms and their causes and step-by-step repair instructions.
Effective articles & videos to help repair your heating & cooling combined units
Learn how to maintain your central air conditioner to keep it running smoothly all summer long.…
Get tips to help keep your central AC running all summer long…
Learn the reasons why you should consider replacing a gas furnace with an electric heat pump.…
Find out how new DOE standards going into effect in 2023 can affect you and what you need to do.…
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
Learn about a new feature added to the Search Bar on Sears PartsDirect…
Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Find out why the burner on your furnace isn't igniting.…
Learn about furnace repairs and how much they cost.…
Learn the advantages of installing a Google Nest thermostat on your HVAC system.…
If your central air conditioner isn't cooling as it should, we'll show you how to check for a tripped float switch and c…
Most common symptoms to help you fix your heating & cooling combined units
Choose a symptom to see related heating and air conditioning system repairs.
Thermostat problem, clogged air filter, burner failure…
Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor…
Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor…
Main causes: errant thermostat settings, lack of electrical power, clogged drain line, wiring failure, control failure.…
Main causes: Errant thermostat settings, lack of power, bad interlock switches, lack of exhaust ventilation, wiring fail…
Dirty flame sensor, failed flame sensor, damaged burner, bad high limit switch…
Most common repair guides to help fix your heating & cooling combined units
These step-by-step repair guides will help you safely fix what’s broken on your HVAC system.
How to unclog the air conditioner drain line
The condensate drain line for your central air conditioner can clog with mold and mildew. Water will back up and start d…
How to replace the furnace flame sensor
The flame sensor detects when furnace burner flames are lit. You may need to replace the flame sensor if flames only sta…
How to replace a heating and air conditioning system thermostat
The control thermostat for your HVAC system can stop working. This repair guide shows how to replace it.…