Lennox air conditioner troubleshooting | HVAC Options

At HVAC.com, our writers create options that put you accountable for your HVAC system. Our product opinions and suggestions are researched and backed by actual consumers and trade consultants, not dictated by our companions.

Is your AC not working correctly? Give these Lennox air conditioner troubleshooting recommendations a strive. You might be able to get it working by yourself. You’ll save your self the trouble and value of hiring an HVAC technician to carry out the repair.

Lennox AC isn’t blowing chilly air

• Test your thermostat. Set it to “cool” and “auto.” If you choose “on” as an alternative of “auto,” your fan will run even when it’s not actively cooling. 
• Test your air filter. It is best to change it each few months. If it’s soiled and dusty, it’s time for a brand new one. Observe these directions to vary your AC filter. You may order a brand new filter on Amazon or decide one up at a retailer like Lowe’s. 
• Be sure your vents are away from furnishings and litter. Open the louvers on the registers.  
• If these Lennox AC troubleshooting suggestions don’t repair the difficulty, chances are you’ll must name a technician. Your evaporator coil, condenser, or refrigerant might require consideration. 

Lennox AC is making loud or uncommon noises

• If you happen to’re listening to a rattling or clanking sound, it could be a DIY repair. First, flip off the ability to your system.
• Open the skin cowl of your condenser. Chances are you’ll want a screwdriver to do that. 
• Look inside and take away particles reminiscent of rocks, sticks, or leaves. Be sure to put on work gloves to guard your arms across the fan blades. 
• Test screws, bolts, and different inside elements. If you happen to discover one thing is free, tighten it. It might be inflicting the noise. 
• Name knowledgeable in case you hear different noises, reminiscent of screeching, banging, or buzzing. It’s doubtless a extra advanced repair. 

Lennox AC is dripping water

• Some moisture round your AC is regular. It makes condensation as it really works. However in case you discover a puddle or dripping water, chances are you’ll must carry out some Lennox air conditioner troubleshooting. 
• Test the drain pan below the indoor unit of your AC. It’s there to catch condensation. Be sure there isn’t the rest in it inflicting an overflow, reminiscent of mould or particles. 
• If there’s a whole lot of water across the unit, flip the circuit breaker off. Use an previous towel or a store vac to take in the water to keep away from water harm. 
• Test your air filter. Observe our information if it wants a change. You may order a brand new air filter inexpensively on-line. 
• Test your drain line. Your AC has a hose that directs condensation to the drain pan. Unscrew the hose and attempt to flush out clogs with heat water. Or use a store vac to suck out any blockages. 
• If the following pointers don’t do the trick, you’ll must contact an area HVAC tech. 

Lennox air conditioner troubleshooting assets

Lennox has an air conditioner troubleshooting instrument to assist determine and repair AC points. There’s additionally a product literature look-up the place you could find the proprietor’s handbook in your mannequin. 

Each of those Lennox troubleshooting assets might allow you to determine the elements of your air conditioner. They’ll additionally allow you to decide whether or not your problem is a DIY repair or not.

If you happen to’ve tried all our Lennox air conditioner troubleshooting suggestions and nonetheless can’t resolve the issue, contemplate calling knowledgeable. A technician can even troubleshoot for you in case you’re not assured doing it your self. 

Click on under to attach with a top-rated native AC technician who can get your system up and working!