SPP6 Hard Start Capacitor Replacement 115V Thru 288VAC Hard Start kit for air Conditioner Units from 4,000 to 120,000(1/2 Thru 10H.P.),Increases Compressor Torque 500% by AMI PARTS

Quick delivery which was helpful with the crazy heat wave.The compressor was not kicking on, but the fan was working fine. I keep a spare capacitor on hand as they are cheap and the usual cause of AC units not to function. However, on this case the capacitor was fine. A friend in the AC repair field told me about these hard starters and at $15 I considered it a safe bet. Easy to hook up, please search the internet for some instructions on installation.Three days now of a working AC unit without a service call!!Update 07/22/2025Still going strong!! Buying an extra one to sit on the shelf in the garage in case anything happens in the future. Small investment for having the AC down for just a few minutes.

easy to install and really works. Saved us from the blistering TX heat. I went out and installed this product when our compressor went out! It made me look like I knew what I was doing when I installed it myself. Made the wifee really happy, she was about to leave me, but she decided to stay a bit longer and cooled off!

Works well, easy to install. What else do you need to know.

HVAC Unit stopped cooling - sounded like compressor just couldn't get going.The HVAC Company told me the compressor was locked up, and the Capacitor seemed ok, so given furnace/compressor was 25+ years old, it would ALL need to be replaced (for $12,000 to $15,000). The Tech said they COULD install a hard start capacitor that MIGHT fix the issue temporarily for $340, but as soon as they started to install it, it was paid for & no refunds. Didn't want to gamble $340 for potentially nothing, so sent them on their way (with $100 for the SVC call).I then started googling and learning about hard start capacitors. Bought this unit for $15 and installed it the next day without difficulty. Compressor started up immediately and ran fine, so this was pretty good for $15!Of course the question is how LONG will it last? No idea, but if I can get through this Summer I will be very happy, and I know some people have eked out a couple of years usage with these things.One comment: many DIY Videos fail to mention that capacitors can hold a charge AFTER the breaker panel is turned off. BE SURE to discharge existing capacitor by grounding out all the lugs with a screwdriver with an insulated handle! I knew to do that already, but I am sure some novices could get zapped otherwise.

My AC compressor was stuck and wouldn’t kick on to cool my home. I tried watering it down to cool it off and starting it up again and did nothing. I had to get a 2day stay hotel to get my family out the house. Never herd about a hard start until doing some research. I searched it up on amazon and decided to give this product a try. Very easy to plug in. I connected the fuse back and the unit didn’t even hesitate to turn the compressor on with the hard start. Definitely saved us from paying big bucks unexpectedly.

Well of course it's very easy to install. I didn't have just enough room to get it into the cabinet area. However it seemed to work really good for the first five or six starts now it seems like it's back to doing what it was doing before so I don't know the hard start kit is actually helping. Bought a new larger capacitor in my voltage is still running around 119 volts.

Easy installation, increased startup performance on old home ac compressor. Will be super impressed if we get a few more summers out of the system.

Booster for run capacitor great help to make run the compressor