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Question by  dullrich (4)

Can you cause central AC to freeze up by setting thermostat at 68 degrees?

 
+7

Answer by  Darry (3853)

Central air conditioning can freeze up whenever the unit needs servicing. If it only freezes up at 68 degrees and not at a slightly higher temperature, such as 69 or 70, then your unit may be incapable of cooling to that temperature. In most cases the unit will need servicing by an HVAC technician to repair a mechanical problem/failure.

 
+6

Answer by  jennie (77)

I wouldn't think so. It may be possible that all of your free on leaked out. I would suggest leaving your unit off for a day to thaw out and then try to restart it. If that doesnt work then you will probably have to call a service technician out to fix it.

 
+6

Answer by  GraysonHomeServices (14)

The answer is no. Under normal operation conditions, considering the filter is in place, recently changed, or not clogged. The Air conditioner unit is charged with the proper amount of freon and the coils have been cleaned by a pro. A thermostat will cycle off at 68 degrees and cycle on at 69 and will not freeze up.

 
+6

Answer by  lmath629 (402)

It is certainly possible for central AC to freeze up at 68 degrees. Most of the time, this is the result of very high humidity and high heat outside. This is a common situation in Arizona during the monsoon season. Air conditioners often freeze up during that time of year in Arizona. We have to set the thermostat higher.

 
+6

Answer by  bobfernandaz (62)

No. There is no possible way that you could ever cause your central air conditioning to freeze up by setting your themostat at sixty eight degrees, as that is a very common setting for thermostats. On the other hand, if you were to set it at sixty eight degrees celcius, it would be more likely to freeze up.

 
+1

Answer by  Anonymous

Perhaps you have it on "cold" in winter time?

 
+0

Answer by  Anonymous

MY HVAV professional says not to run below 69 degrees or can cause freeze up and possibly damage unit. I have Tenants that want to set between 50 & 65 degrees. For those that say 68 degrees won't hurt, what about 50 to 65 degrees?

 
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