On 7/18/2011 4:17 PM, Richard Prosser wrote: > On 19 July 2011 06:45, Joe Wronski wrote: >> Maybe I should have out EE in the subject line. I got no replies. >> I went ahead with a $10 Packard Inc capacitor from an Ebay dealer to >> replace the AmRad unit. It is the same value as the original, and the >> only difference was a metal package rather than plastic, and it was a >> little bit taller, but there was room to spare. >> Fan and compressor motors started and ran fine, and I was happy with the >> results, but a "picker" that came over to buy a screen house took it >> along with a pick-up load of other stuff along with the screen house. I >> now have more cash to pay the movers and less stuff to move. Win / win. >> >> Joe W >> HVAC repairman for a day. >> >> >> On 7/13/2011 1:39 AM, Joe Wronski wrote: >>> After seeing the thread about the AC unit that doesn't want to work= on >>> Sundays, and some of the ideas about capacitors, now I have a questio= n >>> I hauled out a 10 year old window AC and plugged it in, and it got cold= , >>> but the fan was very weak. After some fiddling with off/on and >>> fan/cool. the compressor stopped working. Took it apart and there is a >>> single capacitor unit for both motors, and it is cracked and leaked >>> internal fluid that is now a hard substance. (Hope it's not too toxic). >>> So the cap is obviously gone. The problem is, an exact replacement >>> (AmRad Engineering 35 + 4 MFD) is about $40, real money for a 10 year >>> old unit. But lots of 35 + 5 MFD units are available for under $20, an= d >>> that seems worth a try. >>> The question is, will a 5 MFD cap work where a 4 MFD cap was designed >>> in? Will it burn out the motor? >>> I'm not sure if it's a start or a run cap; on the AmRad site, it's >>> listed as a run cap. >>> Thanks, >>> >> >> -- >> Joe Wronski >> Stillwater Embedded Engineering >> www.stillwatereng.net >> >> -- >> http://www.piclist.com PIC/SX FAQ& list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> > Hi Joe, > > Something's not right here - I did reply to the origonal post. > (I suggested that the cheaper cap would be worth a try.) > > RP > Richard, I either missed it or it did not come through. Eventually finding the right value cheaper made it sort of a moot question. Thanks, Joe --=20 Joe Wronski Stillwater Embedded Engineering www.stillwatereng.net --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .