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Category: HVAC
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Experience:  15yrs in the HVAC industry with certificates and degrees.
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Senville SENA/18HF/MO, 2 room unit; started having 1 room

Customer Question

Senville SENA/18HF/MO, 2 room unit; started having 1 room not cool ; turned off system and restarted and all was well. did this a few times over a few weeks. Finally, neither unit would cool and compressor not turning on (no fan either) and compressor was hot; cooled unit and still no fan or compressor; indoor units turn on and blow fine; no error code on inside units or on circuit board in outside unit; resistance on compressor about 1.5 ohms; no short to ground. No obvious signs of anything wrong with capacitor board except maybe a dark smudge. What to do next?
Submitted: 2 months ago.
Category: HVAC
Expert:  HVAC Guru replied 2 months ago.

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CHeck the power to the outside unit, you may have a bad capacitor that can cause the compressor not to start and fan not to run. They often look fine but can be bad. I would change that and also check the voltage to the outside unit. I would say the capacitor or contactor would be the likely suspects from what you have described.

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Customer: replied 2 months ago.
That answer is not specific to my unit. It has an inverter type compressor and a circuit board with capacitors and chips etc. Not like your typical outdoor unit.
Expert:  HVAC Guru replied 2 months ago.

Are you getting any flashing errors on either board?

Customer: replied 2 months ago.
No error lights on outside unit board or inside units. Inside units blow air (just not cold) and operate normally.
Expert:  HVAC Guru replied 2 months ago.

I am not sure if you got any of my messages

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