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HomeRepair HelpGibson Central A/C RepairGibson Central air conditioner is frequently cycling/short cycling Repair
Gibson Central air conditioner is frequently cycling/short cycling
If your Gibson central air conditioner is short cycling, the system may turn on and off repeatedly before the home reaches the set temperature. The most likely cause is a clogged air filter, which restricts airflow through the furnace or air handler and can make the AC work harder. Replace the filter as recommended, especially in dusty homes or homes with pets. Next, check for dirty condenser coils. Debris prevents the outdoor coils from releasing heat, which can cause the compressor to overheat and trigger central air short cycling. A failed wall thermostat or thermostat wiring is less common, but defective electrical contacts can make the air conditioner short cycling intermittently. A clogged filter can also reduce cooling capacity and cause the evaporator coil to frost over, while a failing control board may interrupt power to the cooling components. Filter replacement and careful coil cleaning are reasonable DIY repairs, but shut off power at the disconnect box first. Testing thermostats, control boards, or other 240-volt components requires electrical caution and may be best handled by a qualified technician. Enter your Gibson model number to find the exact replacement air filter, thermostat, or control board for your central air conditioner.
01 - Gibson 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 the unit short cycling when trying to cool the home.
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Highly Likely
02 - Condenser Coils are Dirty
The condenser coils dissipate the heat as the refrigerant passes through the coils. If the condenser coils are dirty, they won’t be able to dissipate the heat as effectively. As debris builds up on the coils, the heat pump will become less efficient, causing the unit to work harder to cool down. If the coils are significantly dirty, the heat pump will not be able to remove the heat from the outdoor coil, resulting in the compressor overheating and short cycling. Check the condenser coils to determine if they are dirty. Refer to owner's manual for cleaning instructions.
Common
03 - Gibson Central Air Conditioner Wall Thermostat
The wall thermostat has electrical contacts that control the power supply to the furnace, air handler and condensing unit. If the contacts in the thermostat fail, the cooling system may turn on 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.
Less Common
04 - Gibson Central Air Conditioner Wifi Thermostat
The WiFi thermostat has electrical contacts that control the power supply to the furnace, air handler and condensing unit. If the contacts in the thermostat fail, the cooling system may run 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.
Less Common
05 - 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
06 - Gibson Central Air Conditioner Control Board
The control board regulates the power supply to all of the components of the furnace or air handler. If the control board fails, it might not send voltage to parts of the cooling system, causing a loss of cooling and frequent cycling.
Less Common
Frequently Asked Questions
Why is my Gibson central air conditioner short cycling?
Can a thermostat cause my central AC to turn on and off repeatedly?
Could a dirty condenser coil make my AC short cycle?
Should I replace the Gibson central AC control board if it is short cycling?
How do I find the correct Gibson central air conditioner replacement part?
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