I need your advice on York air conditioner troubleshooting.

Just because you crank the AC down to frozen does not mean it is actually turned on. First, make sure the thermostat is set to cool.

It is, which is why I’m frustrated that it is still like the fan is all that’s on.

If you have a refrigerant leak, the fan will blow but there’s not any cold air to cool off the house.

Unfortunately, there’s no refrigerant indicator like a gas gauge.

No, but a lot of knocking and pinging can be a strong indicator of that, along with ice build up on the coils.

I thought that meant it was working too well.

Or it is a symptom of the unit not working well because the air filters are clogged. You can even gauge that problem’s severity by the levels of gray.

I know, if it is black, replace it.

If it is dark gray, the unit gets so little air flow that the chilled air circulates around the unit and freezes the condensate on the coil, instead of blowing cool air through the house. In fact, you might fix the thing by replacing the filters.

At least I can get the air filters from the store.

You also need to check the air ducts, since a colony of dust bunnies in there could kill the air flow.

I think I get duct cleaning periodically.

York has a problem with evaporator coil leaks.

That’s an expensive repair. How is the service?

The other problem York has is poor service, such as not honoring warranties, and that’s assuming you can find a York repair person in your area.

I found an installer.

You could find an installer for some Chinese brand you cannot pronounce, but it does not mean they’ll have replacement parts beyond a whole new unit.

I do not know what the error codes are that is giving me, and that’ll probably tell me what needs to be fixed.

E3, E4 and E5 are for temperature sensors, each one for a different sensor. E2 is a communication malfunction.

I suppose flipping the breaker may fix E2. It will also turn off the blinking lights.

The blinking LEDs can indicate what is wrong. For example, if the LED 1 is flashing and LED 2 and 3 are off, it has a phase error.

What if a bunch of them are blinking?

If LED 1 and 2 are flashing and LED 3 is off, the pressure switch has problems, and you want a professional looking at it. LED 1 and 2 off and LED 3 flashing means there’s an over-current.

I’d certainly rather have a pro check that out, because I do not want a shocking outcome.

Anything involving a repair professional is going to shock your wallet, no matter what.

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