Fan capacitor. I spin the blades to check also. With no former training, I found out that little trick just by trial once. It's a handy tip to know that the motor spins freely and hasn't seized up.
Thanks for this video! We have a rooftop A/C on a 4-story condo building with 55 apartment units and the cooling is poor, even on 80-degree days. I know enough not to call a service company and speak your language, well almost!
Parabéns pelos seus vídeos. Estas placas deste equipamento são iguais para todos os modelos de ruf top? O seu manômetro que vc acompanha pelo celular, qual modelo dele? Aqui no Brasil nunca encontrei deste modelo!!!! Parabéns
The sub cooling was high because he was checking the discharge pressure and not the liquid line pressure. He would need to install a liquid line pressure line tap to read the sub cooling. Carrier does not install a liquid line pressure line fitting, to much money.
AC tries to turn on and buzzes for 10-15 seconds, then it turns off. No fan. Nothing…. Tried turning it from ON to OFF a few times, and still have nothing going on when I try it.
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Fan capacitor. I spin the blades to check also. With no former training, I found out that little trick just by trial once. It's a handy tip to know that the motor spins freely and hasn't seized up.
Actually that can tell you alot. Cap usually, but seized, you would hear it....
Lol I’m sure he knows that trick as well
Thanks for this video! We have a rooftop A/C on a 4-story condo building with 55 apartment units and the cooling is poor, even on 80-degree days. I know enough not to call a service company and speak your language, well almost!
It looks like you are connected to the discharged line coming out of the compressor, which is a high-pressure vapor.
Parabéns pelos seus vídeos. Estas placas deste equipamento são iguais para todos os modelos de ruf top? O seu manômetro que vc acompanha pelo celular, qual modelo dele? Aqui no Brasil nunca encontrei deste modelo!!!! Parabéns
I went to school for HVAC, and I have field experience. One of the reasons a capacitor could go bad is the condenser fan motor could be going bad.
High Subcool and High Superheat indicates a restriction in the metering device along with dirty condenser coils. Did you replace filters? Good video✌️
The sub cooling was high because he was checking the discharge pressure and not the liquid line pressure. He would need to install a liquid line pressure line tap to read the sub cooling. Carrier does not install a liquid line pressure line fitting, to much money.
Appreciate your help
More RTU please
awesome video thank you. continue to learn and grow. great job!!
looked like u hooked to the discharge instead of liquid line. thought u cant measure subcool that way
Some units only have one port
I agree… it was the discharge line. Liquid line is after condenser. If I’m wrong please correct me.
My ac roof is goin on and off on the compressor but the fan blower is working well. Where should I start with?
Thanks for the video
For I taking RTU Data for analysing,I seen rtu give 255 value continuesly,Can you explain why this happend.
Great work🙌🏾
Thank you 🙏
Great video
Always change the fan. Usually the fan is on the way out
Please get in the habit of totally disconnecting the cap before reading. Same with compressors.
Lol it doesn’t make a difference and compressors, you can check the wires at the same time
AC tries to turn on and buzzes for 10-15 seconds, then it turns off. No fan. Nothing…. Tried turning it from ON to OFF a few times, and still have nothing going on when I try it.
Contactor would be the first thing I check.
🇺🇸
Is it standard for the compressor to get really hot to the touch?
Probably not, check the charge
scroll compressors tend to get hot to the touch on the bulbous top section
unit looks old, that has 410A?not r22
5 year old filters ? Gross. 🤢🤢🤢😊