Then you have to test the thermostat by turning the breaker to the on position.
Thermostat circuit breaker.
You get to sit back watch some tv make lemonade or do something else relaxing until the next step.
Turn the thermostat back on after 30 minutes check to see what your thermostat is set to.
The circuit breaker tripped.
Thanks for the comments.
Take a look at your circuit breaker and see if it needs to be reset.
If the thermostat has an issue it blows a small transformer or fuse in the blower unit.
You have to check the circuit breaker first and then try to switch the breaker to the off position.
The circuit breaker inside the actual ac unit needs a reset as well and that s what it ll do during the 30 minute break.
Now go to the circuit breaker and switch it off.
Put the battery in opposite direction the negative side is placed to positive and positive side is placed to negative.
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Depending on how your home is wired your thermostat may be on the same breaker as another appliance or device that draws a surplus of power hair dryer anyone.
It looks like the large 50a 2 pole breaker does control the outside ac unit but doesn t affect the heat or the fan.
Switch off the thermostat.
Remove the thermostat and take out the 2aaa batteries from it.
At your electrical panel turn the ac circuit breaker switch to the on position.
Put the battering again the right way.
I ended up walking through the breakers to find a 15a 1 pole breaker that stopped the fan and shut off the thermostat.
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Commonly the circuit breaker is tripped.
If the circuit breaker trips it may shut off the power to your thermostat clearing the screen.
Be sure that the thermostat remains off so that your air conditioner s internal circuit breaker can reset.
If the thermostat is working normally just like before it means there is nothing to worry about.
If this is the case fixing this problem requires nothing more than flipping the circuit breaker switch.
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Wait for 5 10 seconds and take the batteries out.
Some thermostats are on the same breaker as other devices that draw too much power like a hair dryer for example.
Wait 30 minutes with the air conditioner off.
This can cause the circuit breaker to trip which will shut your thermostat off.