LG Heating & cooling combined unit Parts — Browse All Models

Operating tips for your LG heating and cooling combined unit

• Never operate the heating and cooling combined unit without a clean air filter properly installed. Inspect the air filter monthly and replace the air filter when it's dirty. A clogged air filter will increase operating costs and cause cooling problems.
• Keep supply air register vents and return air vents clear. Don't allow drapes, furniture, toys or other items to block supply or return air vents. Clean air vent louvers when they're dirty.
• Keep the outdoor condenser unit clear of shrubs, weeds grass and debris. Maintain a 1-foot clearance around the condenser unit for proper airflow.
• Jiggling the wall control thermostat causes rapid cycling in the control system and this can cause damage to air conditioner components. Don't move the temperature selector on the thermostat for at least 5 minutes between adjustments.
• Running the blower fan continuously minimizes temperature differences inside supply ducts and can lead to greater comfort and cooling efficiency. Consider running the blower fan constantly during hot summer months.

How to diagnose common LG heating and cooling combined unit problems

Here are some heating and cooling combined unit problems you might run into, and what to do about them.

• Won’t turn on. Check the house circuit breaker for the heating and cooling combined unit to make sure it’s turned on. Reset the circuit breaker if it’s tripped. Low air flow can also prevent the heating and cooling combined unit from working, so check the air filter and replace the filter if It’s clogged with lint. Check for a clogged evaporator condensate drain pipe because a drain clog can cause the heating and cooling combined unit to shut off.
• Lack of air flow through the vents. A clogged air filter can prevent air from flowing through the vents, so replace the air filter if it’s clogged. If the filter isn’t clogged, a problem with the blower fan may be causing low air flow through the vents.
• Makes lots of noise. Bearings in the blower fan can make loud squealing or screeching noise when the heating and cooling combined unit runs. Replace the blower fan if its bearings make noise while the fan runs.