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You obviously have a problem with your ac unit which cannot be dianosed here.

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15y ago
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Q: Why won't the thermostat turn the ac on and off?
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My heater will not turn on and my ac will not turn off?

First place to look is the thermostat


Why does your house ac stay on for 8 minutes and off 2 minutes?

Because of the thermostat. This will turn on the unit when the temperature gets below what ever degree it is set at and then will turn off when the thermostat gets at that temperature.


Why does your ac unit turn on and off?

Your a/c unit uses different relays(switches) that are energized when the thermostat calls for A/C.


How do you turn off the ac?

you can simply select "off" on the thermostat to stop operation; however, if you are going to service the ac, the main power cut-off will be within arms reach of the condenser usually located outside .


Why does the heater on your AC will only turn off when you switch the breaker off and will only turn on when you turn the breaker on?

a bad thermostat or miswire of the low voltage wiring or a bad heating relay stuck in the heating mode.


Central ac runs intermittently?

A central air conditioning unit will commonly turn on and off intermittently. To stop this, adjust the temperature on the thermostat or switch the unit either on or off rather than the automatic setting on the thermostat.


I want my air conditioner to turn on when the temperature 78 degrees and turn off when the temperature is 72 degrees. Once it is 72 degrees, it should turn the AC off until it hits 78 degrees again. Is there a thermostat that can do this?

That's the entire point of an AC unit. it's to keep your house at a steady temperature


Why does car turn off when you turn on the ac?

The ac pump may be seized up.


Why doesn't the ac turn off once it reaches thermostat setting?

Most thrmostats have a = or + of degrees that it will turn on or off. For example, if it has a +- 2degrees, it means that if you set it for 75 dgrees, it could be off (or on)at 73 or 77 degrees. Most of them lose their calibration after awhile and needs replacing,


Why does your blower to your ac and heater fan go on and off?

Why does your ac and heater fan turn off and on


Why does your ac quit cooling for a while then come back on?

The temperature in the air gets cool enough, so its thermostat turns the AC off. When it warms enough, the thermostat turns it back on.


How do you turn off fan and ac?

Well you have to press the button that says off to be able to turn it off.