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HomeRepair HelpNutone Central A/C RepairNutone Central air conditioner has poor temperature control Repair
Nutone Central air conditioner has poor temperature control
When a NuTone central air conditioner has poor temperature control, the most likely cause is a clogged air filter. Restricted airflow through the furnace or air handler reduces cooling capacity, can cause the evaporator coil to frost over, and may leave your home with uneven cooling. Replace the air filter as recommended, especially if you have pets or dusty conditions. A failed wall thermostat is another common cause of an air conditioner with poor temperature control. Defective thermostat contacts can prevent the furnace or air handler and condensing unit from operating correctly or can make the system cycle intermittently. You can test thermostat continuity with a multimeter, but leave 240-volt work at the condensing unit to a qualified technician. Blocked or leaking vents can also cause weak airflow, inaccurate AC temperature readings, and rooms that the system cannot cool evenly. Finally, an oversized air conditioner may cool too quickly and shut off before air circulates throughout the home, leaving the AC not holding temperature consistently. Enter your NuTone model number to find the exact replacement air filter, thermostat, or other part for your central air conditioner.
01 - Nutone Central Air Conditioner Air Filter
Check and replace the air filter at least twice a year, more often in dusty/dirty environments or if there is a pet in the home. A clogged air filter will greatly reduce the air flow of the furnace or air handler which can result in poor temperature control when trying to heat or cool the home.
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Highly Likely
02 - Nutone Central Air Conditioner Wall Thermostat
The wall thermostat has electrical contacts that control the power supply to the furnace or air handler and condensing unit. If the contacts in the thermostat fail, certain components of the cooling system may not work or may only work intermittently. To determine if the thermostat is defective, use a multimeter to test it for continuity. If the wall thermostat does not show proper continuity, replace it.
Common
03 - Nutone Central Air Conditioner Wifi Thermostat
The WiFi thermostat has electrical contacts that control the power supply to the furnace or air handler and condensing unit . If the contacts in the thermostat fail, certain components of the cooling system may not work or may only work intermittently. To determine if the thermostat is defective, use a multimeter to test it for continuity. If the WiFi thermostat does not show proper continuity, replace it.
Common
04 - Clogged Air Filter
If the air filter is clogged, air cannot flow properly through the home's venting system. This greatly reduces the cooling capacity of the air conditioner. In addition, if the air filter is clogged, the evaporator coils will frost over and not be able to remove moisture from the air. The air filter should be checked and replaced at least twice a year, more often in dusty/dirty environments. Refer to owner's manual for guidance.
Less Common
05 - Blocked or leaking vents
The furnace or air handler must have good airflow to work properly. A blocked or leaking vent can prevent good air flow and cause inconsistent room temperatures.
Less Common
06 - Oversized air conditioner
An oversized furnace or air handler will quickly heat or cool the home and shut off. This causes acceptable temperatures in certain areas but not in others. The circulated air needs time to distribute evenly throughout the home; the air recirculating through the furnace or air handler for longer periods of time will produce better results.
Less Common
Frequently Asked Questions
Why does my NuTone central air conditioner have poor temperature control?
Can a bad thermostat cause my central air conditioner to have uneven cooling?
Why is my air conditioner not blowing enough air through some vents?
Can an oversized NuTone central air conditioner cause poor temperature control?
How do I find the correct NuTone central air conditioner replacement part?
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