A/C wont turn on
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A/C wont turn on
have an outdoor unit. when i turn it on at the thermostat, the blower comes on inside but the outside unit does nothing. Checked outside, the unit is getting power and the contactor depresses, but the fan/condenser will not turn on.
any suggestions, i am thinking electric component failure.
any suggestions, i am thinking electric component failure.
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Are you sure you have the proper voltage at the line side of the contactor? What about across the contactor?
Could be a bad run capacitor if it is a combination used for the fan and compressor.
Could be a bad run capacitor if it is a combination used for the fan and compressor.
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thanks, Cov Tiger, ill check the voltages again.
And YES. the capacitor is used for both the compressor and the fan. is there any way I can test to see if it is okay.
And YES. the capacitor is used for both the compressor and the fan. is there any way I can test to see if it is okay.
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i also think the voltages should be fine since the contactor goes in when the tstat is switched on, and pops back out when off. Back i guess i should check anyway
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Contactor is being pulled in by the low voltage (24V). You should have 208/230V feeding into the unit contactor and going through the contactor. 90% of the calls we get with your symptoms turn out to be fuse or tripped breaker. Check them first.
You can do a limited check on capacitor with an ohm meter. If you do have proper voltage through the contactor, unless you are unlucky enough to have lost a fan and compressor at same time, it will probably be the capacitor.
You can do a limited check on capacitor with an ohm meter. If you do have proper voltage through the contactor, unless you are unlucky enough to have lost a fan and compressor at same time, it will probably be the capacitor.
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im getting the 24volt signal, but it looks like i am not getting the ~220 across the contactor when its depressed, if this is at all possible.
the run capacitor looks fine, no swelling, no leaking.
the run capacitor looks fine, no swelling, no leaking.
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no i dont think so, and i checked all breakers and they seem to be okay. therew are two larger 3" fuses in a fuse box under the breaker panel, and although one is burnt, they seem to be for the downstairs stove. so i dont think its a fuse or breaker problem.