That's a double capacitor for both the fan and compressor. The 5mfd is
for the fan and the 45mfd section is for the compressor. Lightning blows
those things out all the time. The 5/45 may work OK until you can get
the proper replacement but get a 440volt rated capacitor instead. The
higher voltage rating will hold up longer than the lower voltage 370volt
cap. There is a real problem in the HVAC industry with Chinese
manufactured capacitors that don't hold up and don't meet voltage/mfd
ratings and have a high failure rate. There are websites that sell
American made capacitors that have become popular albeit much more
Usually compressors make a distinctive noise. You can also check the amp
draw. But for now, I'd suggest to replace the capacitor. Fairly
inexpensive item and a common culprit. Finding one on Sunday? Only if
some HVAC company near you is willing to sell you one. Might need to
wait till Monday.
Christopher A. Young
Learn about Jesus
On 8/4/2013 7:39 AM, mcp6453 wrote:
On Sunday, August 4, 2013 7:39:18 AM UTC-4, mcp6453 wrote:
Sure. The fan has to carry the heat away. With poor air flow, it's
not going to do much cooling.
You should be able to tell the sound of the compressor motor from
the hum of the contactor/relay. Also, normally the pressure line
is warm, the suction line cold, at the unit. With it underperforming,
the difference will be less, but I would still think you'd feel
some difference. From the description, sure sounds like it's a
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