












⚡ Energize your motors with confidence and safety!
This 70 µF round run capacitor by Blue Stars is engineered for reliable startup of single-phase AC motors operating at 50/60 Hz, with a robust voltage rating of 370-440VAC ±5%. Featuring a durable bakelite body and a 10000 AFC anti-explosion pressure switch, it delivers stable capacitance and low power loss across a wide temperature range (-25℃ to +70℃). Ideal for washers, air conditioners, compressors, and pumps, it meets OEM standards and includes lifetime protection for long-term peace of mind.













| ASIN | B0CJTZWGGX |
| Guaranteed software updates until | unknown |
| Item model number | 70 MFD |
| Manufacturer | BlueStars |
| Package Dimensions | 13.69 x 6.5 x 6.4 cm; 322 g |
B**N
Works great!
Y**O
My adventure began with the installation of an Ecobee thermostat. While the heater functioned perfectly right away, the air conditioning did not fare as well. The compressor would start, but the fan refused to spin. Stepping outside to investigate the issue, I quickly realized I was out of my depth. Nevertheless, I decided to give it a shot. I noticed a dual capacitor in the unit and ordered a replacement. After installing the new dual capacitor, the fan still didn't budge. Next, I thought the fan motor might be the culprit. I ordered and installed a new motor, but to no avail. Upon closer inspection, I found there was a second capacitor. I ordered this second capacitor and decided to replace the contactor as well. Finally, after wiring the new fan motor and using the two new single-run capacitors, everything sprang to life! My 1983 Rheem 2.5t A/C condenser unit was up and running again. (FYI the house came with it, will replace one day but works just fine!) Here are some key takeaways for fellow DIY enthusiasts: Diagnosing the Issue: If your fan isn't spinning, check both capacitors (if present) and the fan motor. Capacitor Replacement: If you have a dual-run capacitor, consider using two single-run capacitors instead. Ensure the microfarad (uF) ratings match your compressor and fan motor specifications exactly. Wiring: Follow the wiring diagram for your specific unit. If the original diagram doesn't work, consider alternative wiring setups, but ensure all connections are secure and correct. I’m attaching a wiring diagram for anyone with the same unit. Remember, the uF ratings are crucial—make sure they are accurate for your compressor and motor. If you're unsure, a quick Google search with your unit's model information should help. In summary, after several attempts and a lot of trial and error, I’m thrilled to report that my A/C unit is fully operational again. The single-run capacitors made all the difference. I practically rebuilt my A/C, and would have possibly not ordered the fan motor if I would noticed the second capacitor. Happy DIY-ing!
G**F
Absolutely perfect. Easy to install, as with anything electric however make sure your power is off, and discharge your old capacitor before handling it.
A**A
I recently purchased the [Upgraded 2023] 45+5 uf/MFD 45/5 uf 370 or 440 Volt VAC Round Dual Run Capacitor CBB65 50/60 Hz by BlueStars for my AC condenser, and I am extremely satisfied with its performance and compatibility. Firstly, the capacitor's upgraded design for 2023 ensures enhanced reliability and durability. I was impressed by its build quality, which feels solid and well-constructed. The capacitor is designed to withstand varying voltages of either 370 or 440 volts, making it compatible with a wide range of air conditioner models. The 45+5 uf/MFD rating of this capacitor perfectly matches the requirements of my AC condenser, allowing for efficient operation and optimal performance. I noticed a significant improvement in my AC's cooling and heating capabilities after installing this capacitor. It has effectively boosted the overall performance of my air conditioner, providing a more comfortable environment in my home. The installation process was straightforward and hassle-free. The capacitor's round shape and dual run design made it easy to connect with my AC unit. I appreciate that it is compatible with both straight cool and heat pump air conditioners, making it a versatile choice for different systems. Furthermore, the capacitor's compatibility with 50/60 Hz frequency ensures smooth operation and reliable performance in various power supply conditions. I haven't experienced any issues or disruptions since installing this capacitor. Overall, I highly recommend the [Upgraded 2023] 45+5 uf/MFD 45/5 uf 370 or 440 Volt VAC Round Dual Run Capacitor CBB65 50/60 Hz by BlueStars. It delivers exceptional performance, boasts excellent compatibility, and comes with a sturdy construction that promises long-term reliability. If you're looking to upgrade your AC condenser capacitor, this is definitely a top-notch choice.
R**M
Works great though it’s wider than the one I was replacing which made installation a little harder.
Trustpilot
2 weeks ago
2 months ago