Thermal Zone Central air conditioner Parts — Browse All Models

Common Thermal Zone central air conditioner parts that need replacing

• Air filter. Replace the air filter monthly or as directed in your central air conditioner’s owner’s manual. Replacing the air filter regularly helps keep the central air conditioner running smoothly and helps the unit last longer.
• Thermostat. The thermostat turns the central air conditioner on and off. The thermostat can eventually wear out or break. Replace the thermostat if it doesn’t control temperature accurately or doesn’t turn on the central air conditioner at all.
• Blower motor. The blower motor often runs for long periods without stopping. The bearings that support the motor shaft can wear out over time. Electrical problems inside the motor can also prevent the blower motor from running. Replace the blower motor if it doesn’t run or makes loud noises when running.

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How to diagnose common Thermal Zone central air conditioner problems

Here are some central air conditioner problems you might run into, and what to do about them.

• Won’t turn on. Check the house circuit breaker for the central air conditioner to make sure it’s turned on. Reset the circuit breaker if it’s tripped. Low air flow can also prevent the central air conditioner 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 central air conditioner 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 central air conditioner runs. Replace the blower fan if its bearings make noise while the fan runs.

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