![]() A professional contractor could verify that the voltage is within an acceptable range and that there are not shorted wires. If the delay lasts longer than five minutes, there may be an issue with the voltage to the thermostat. What if “Cool on” blinking lasting longer than five minutes on my thermostat? The thermostat keeps the compressor off for a few minutes before restarting, to prevent equipment damage. The minimum off timer is activated after the compressor turns off. The thermostat has a built-in compressor protection (minimum off timer) that prevents the compressor from restarting too early after a shutdown. How long will thermostat blinking “cool on” last? A delay is used to protect your heating and cooling equipment from coming on too quickly (known as short cycling), which can cause damage. This delay can be up to five minutes under normal operating conditions. Why is my thermostat display showing “wait,” “waiting for equipment,” or flashing “cool on”?Įach thermostat model has a different display message when a delay occurs.
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September 2023
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