Unlock the Right Part
for Your Repair
Find the exact part you need
Enter your model number to see parts that fit your machine.
Price Match Guarantee
In-stock parts ship the same day
365-Day Return Policy
Price Match GuaranteeChoose Product
Identify Problem
03
Find Solutions
HomeRepair HelpICP Central A/C RepairICP Central air conditioner has poor temperature control Repair
ICP Central air conditioner has poor temperature control
If your ICP central air conditioner has poor temperature control, check the air filter first. A dirty or clogged air filter restricts airflow through the furnace or air handler, reduces cooling capacity, and can cause the evaporator coil to frost over, making the AC temperature not accurate or the system unable to hold the set temperature. Next, test the wall thermostat. Failed thermostat contacts can interrupt power to the furnace or air handler or condensing unit, causing uneven cooling in the house or intermittent operation. Also inspect vents for blockage or leaks that reduce airflow to individual rooms. An oversized air conditioner is a less common cause because it cools the home too quickly and shuts off before temperatures can balance throughout the house. Replace a dirty air filter and check accessible vents yourself. Thermostat testing involves low-voltage wiring, but repairs involving the condensing unit, 240V line voltage, or sealed-system components require a qualified HVAC technician. Enter your ICP model number to find the exact replacement air filter, wall thermostat, or wall thermostat for your central air conditioner.
01 - ICP 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.
Enter model number to search for the required part specific to your product
Highly Likely
02 - ICP 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 - ICP 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 is my ICP central air conditioner not holding temperature?
Can a thermostat cause uneven cooling or an AC temperature that is not accurate?
What should I check if my AC has low airflow or is not blowing enough air?
How do I find the correct ICP central air conditioner replacement part?
When should I call a technician for an ICP central air conditioner with poor temperature control?
Shop by ICP Central Air Conditioner Parts
Shop by Popular ICP Central Air Conditioner Models
Our Story
Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.
About Repair Clinic
© 2026 RepairClinic.com