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Old 06-06-2015, 02:13 PM   #1
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lennox hs26 series not working


Hello I have a hs26 series lennox air conditioner. It was working the night before. I turned it off in the middle of the night and started it back up again in the mid afternoon and its not running at all. HS26-030-3P 5802B38640. it was installed on 3/21/02. The thermostat turns on and so does the furnace inside the house but the unit outside doesn't make noise or spin. I have tried the circuit brackers both inside the house and the main for the unit outside. Still nothing is working. I took pictures of the unit inside and outside. Please help with any suggestions and/or answers. Thank you, Yvonne
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Old 06-06-2015, 02:25 PM   #2
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Neither the outdoor fan or compressor comes on ?

I read a thread a week or two , the guy had a similar situation . His system had a water sensor associated with the drain pan that catches the condensate off the A-Coil .

This sensor shut down the condenser . The drain line became clogged and condensate backed up in the pan .

As soon as the drain line was cleared , the condensate drained out , the sensor was once again happy and all started working again .

On the other hand , the problem may be at / inside the condenser unit .

Do you have a volt - ohm meter ? If not , you can get one sufficient for this chore at Harbor Freight .

Post back when you have a meter in hand .

God bless
Wyr

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Old 06-06-2015, 05:19 PM   #3
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I think Wyr might be on the right track. In your last pic the black box on the floor is the condensate pump. See if that is full of water. It's a starting point.
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Old 06-06-2015, 09:00 PM   #4
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There may be a high pressure switch inside the outdoor units panel. See if its tripped. Your outdoor fan may be seizing.
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Old 06-07-2015, 04:40 AM   #5
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Or a low pressure switch . To shut the compressor down when refrigerant charge get low .

I do not think the PO has answered if both the compressor and outdoor fan are off ?

This is easier to diagnose with a volt - ohm meter .

God bless
Wyr
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