It sometimes happens that some electrical appliances, for example, an air conditioner, does not turn on. In this case, do not panic, you need to understand the reasons. You can probably fix the problem yourself without calling a repair assistant. If the problem is the lack of power, first of all, you need to check the connection of the air conditioner. It can be connected to the network with a plug or automatically. In the first case, you just need to check. If everything is on but the air conditioner refuses to work, it's worth seeing if the outlet is broken. This can be done using a tester screwdriver or a multimeter. If there is power in the outlet, you need to check the air conditioner itself. You need to determine if there is voltage at the terminals of the indoor or outdoor unit. If so, the problem is with the air conditioner. And if not, then this means that you need to change the wiring, as it can be defective. Check if the power cord is in good condition and supplying power (replace if not). Check if the circuit breaker has tripped and reset it. Wash the air filter if dirty. Work on the thermostat- check the settings (and change) or potential defects (and replace). Clean the AC drain pan if dirty. Check if the fuse in your York air conditioner has blown and replace. If you’re not able to get the problem resolved with the above troubleshooting tips, have an experienced HVAC professional investigate further to identify the cause. Even if you are successful, it may be wise to upgrade from an older thermostat to a new programmable model, to avert future problems.
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