I watched at least a dozen videos before I had anyone tell me how do I know what the prongs aren't labeled where to plug in things. This helped me immensely
That was real helpful! I’m still new as a mobile RV tech and couldn’t understand why I was seeing single and double capacitors. Sometimes I see single and sometimes double. In both cases, they are powering a fan and compressor. Not sure why that it, but glad to understand what I’m looking at with single and double capacitors. Thank you!
Great Video for a novice DIY guy ! Thanks :) @2:48 you show adding a additional capacitor ( in parallel ) to boost the dual run capacitor. Would a 5-2-1 Hard Start capacitor be connected like this too ? Also what do you use to SNIP off the metal bracket part ? Thanks
I have a dual capacitor connected to the compressor and a single capacitor connected to the fan motor. I installed a new dual capacitor. I want to connect the fan motor to the dual capacitor and do away with the single capacitor for the fan. Does it matter which fan motor lead goes on common and/or fan of the dual capacitor? Thanks
I have a dual capacitor. I want to get a second for emergency 45 +5 370v. my existing Fan as 2 connectors, Common has 4 connectors and Herm has 3 connectors to hook my wires to. If the one i want to purchase is marked S, C, and fan, does it matter if S, C, and Fan all have 4 connectors to wire to (instead of 4, 3, 2 connectors)? I thought the manufacturer may have included 4 connectors for each for convenience sake when connecting wires. Is that true?
When going from 2 capacitors to a dual capacitor do I need to use old ground wires from the old capacitors and connect compressor ground wire and the fan ground wire to the ground on the dual
Thanks for Video, for safety I would have added; with Air Conditioner fan and compressor capacitors it typically doesn't matter which way around the capacitors are as they are normally non-polarised, but this is not case for all capacitors and all capacitor scenarios. i.e. its quite dangerous using a tantalum capacitor with the polarity reversed (installed the wrong way around).
Zero experience dude .i had a two prong capacitor and they gave me a three prong instead didn't realize it till I got home and I was stuck . until I saw your videos. My family says thank so much for the info.
I have a condenser unit tripping the breaker lately. It doesn’t happen right away, but after about 12 hours of operation I noticed it getting tripped. I opened the unit up and saw one of the wires running from the common to the contractor was loose, and came right off when I touched it. Could that loose wire have been the cause of my problems?
When you have a loose wire it can be two scenarios. First it the wire looks burned, it is possible that the wire has not been crimped correctly or the motor is using too much current. Once you fix the wire check the Amp draw to make sure you are in specs for that motor or compressor. The second option is that wire was making a spark when the unit was shaking. There is a great tool that I use if you are not able to locate the reason for the unit to trip a breaker- Supco MEGOHMMETER M500. I will make a new video on how to use it soon.
Great video. Quick question. Ac fan suddenly stopped and i replaced the motor fan and the store told me to have fan capacitor so i bought it for $6. Now o have dual(existing) capacitor and single(for fan) capcitor. Can i just use the existing or its better to use two capacitors (single for fan, dual for compressor)? Thanks
Hi Jeffrey, Most of the times when you replace the motor the capacitor that the new motor require is different than the original, so new capacitor has to be used. If you replace the original motor with the same brand and model motor you can use the old capacitor.
@@acprofessor8513 thanks for the reply sir. i replaced the old motor fan with a different brand. My existing capacitor is 60/7.5 micro-farad (440v)dual run capacitor. When i changed/replaced the original motor fan to a new motor fan(different brand), the store told me to use another/additional new capacitor ( 7.5 microfarad single 330v). My question is, is it necessary to have two capacitors (1 existing dual run capcitor, 60/7.5 microfarad 440v and 1 new single run capacitor for fan 7.5microfarad 330v).. The motor fan has two brown wires that are hooked up to single capacitor(new) and its black wire is going to the contactor and the white wire goes to existing(old) capacitor "c" common terminal.. thanks
@@jeffreyreyes3614 If the new motor comes with two brown wires it is best practices to use a separate capacitor. There is a way to use your original cap, as it is the same value, maybe I would make a video to explain how to wire it.
AC Professor thank you for clarifying this. It makes sense now to me since the new motor fan has two brown wires and i have a separate capacitor for the motor fan alone. Thank you so much and more power to you. Continue inspiring people for your awesome videos! 👍🏻
I have a Trane XR14 that is doing the typical buzzing sound but the fan isn't starting or running, even when bump started with a stick. The unit has two single run capacitors. One capacitor (135-162MFD) tested good, and the other (70uF) tested bad. I have a dual run 70/5uF handy. A single run exact replacement won't arrive for another week. Should I be able to install the dual run using the C and HERM terminals?
Michael, there should be another capacitor somewhere. The 70uf is probably run capacitor for the compressor(3-5ton System) The 135-162 MFD is the start capacitor that only helps the compressor to start and then it is disconnected using a potential relay. So there should be another cap for the fan.
AC Professor thank you! Turns out it was the fan motor itself. I replaced the 70uF that was bad. No go. Replaced the contactor next. Still no go. Then replaced the fan motor and that was the second problem. How often do two components fail at the same time? Lol
@@michaelh7770, Some time a voltage spikes. The higher voltage can take several A/C components together and additional appliances too like a refrigerator or microwave. It happens a lot more than we realize and it is not only because of lightning. A component can fail and we don't realize unless the unit stops working. The fan or compressor capacitor can become weak and components may still work intermittently. The unit will not be efficient and will have less capacity. For the fan, the test I do is to give it a push whit a long screwdriver or a stick. If that doesn't help and has a lot of resistance and not able to spin it is a sign it may be defective. That is a good idea to make a new video about motors next. Glad you got it working.
I watched at least a dozen videos before I had anyone tell me how do I know what the prongs aren't labeled where to plug in things. This helped me immensely
That was real helpful! I’m still new as a mobile RV tech and couldn’t understand why I was seeing single and double capacitors. Sometimes I see single and sometimes double. In both cases, they are powering a fan and compressor. Not sure why that it, but glad to understand what I’m looking at with single and double capacitors. Thank you!
Wow, this is the best video on explaining capacitors that I have seen. You are very knowledgeable. Thank you!
Thank you Allen, I try to share my knowledge. Now the weather is getting better there will be more videos coming up.
Excellent explanation!! Thank you very much!
very educational!! Thank you
Great Video for a novice DIY guy ! Thanks :) @2:48 you show adding a additional capacitor ( in parallel ) to boost the dual run capacitor. Would a 5-2-1 Hard Start capacitor be connected like this too ?
Also what do you use to SNIP off the metal bracket part ? Thanks
I have a dual capacitor connected to the compressor and a single capacitor connected to the fan motor. I installed a new dual capacitor. I want to connect the fan motor to the dual capacitor and do away with the single capacitor for the fan. Does it matter which fan motor lead goes on common and/or fan of the dual capacitor? Thanks
Great ... Very informative video. Thanks
I have a dual capacitor. I want to get a second for emergency 45 +5 370v. my existing Fan as 2 connectors, Common has 4 connectors and Herm has 3 connectors to hook my wires to.
If the one i want to purchase is marked S, C, and fan, does it matter if S, C, and Fan all have 4 connectors to wire to (instead of 4, 3, 2 connectors)?
I thought the manufacturer may have included 4 connectors for each for convenience sake when connecting wires. Is that true?
Can you go from a single capacitor to a dual capacitor? My current capacitor on my compressor only has two leads.
Great video! Thank you!
Glad you liked it!
When going from 2 capacitors to a dual capacitor do I need to use old ground wires from the old capacitors and connect compressor ground wire and the fan ground wire to the ground on the dual
Thanks for Video, for safety I would have added; with Air Conditioner fan and compressor capacitors it typically doesn't matter which way around the capacitors are as they are normally non-polarised, but this is not case for all capacitors and all capacitor scenarios. i.e. its quite dangerous using a tantalum capacitor with the polarity reversed (installed the wrong way around).
You are absolutely right. If the capacitor is for DC voltage it is always polarized. I updated the video description. Thank you.
What dual capacitor do I need my compressor capacitor specs say 40/370 but my other capacitor for the fan says 4/370 can I us dual 25 4 uf /370
Zero experience dude .i had a two prong capacitor and they gave me a three prong instead didn't realize it till I got home and I was stuck . until I saw your videos. My family says thank so much for the info.
You are welcome.
I have a condenser unit tripping the breaker lately. It doesn’t happen right away, but after about 12 hours of operation I noticed it getting tripped. I opened the unit up and saw one of the wires running from the common to the contractor was loose, and came right off when I touched it. Could that loose wire have been the cause of my problems?
When you have a loose wire it can be two scenarios. First it the wire looks burned, it is possible that the wire has not been crimped correctly or the motor is using too much current. Once you fix the wire check the Amp draw to make sure you are in specs for that motor or compressor. The second option is that wire was making a spark when the unit was shaking. There is a great tool that I use if you are not able to locate the reason for the unit to trip a breaker- Supco MEGOHMMETER M500. I will make a new video on how to use it soon.
thanks
Thank you senpai ❤
Great video!!
Great video. Quick question. Ac fan suddenly stopped and i replaced the motor fan and the store told me to have fan capacitor so i bought it for $6. Now o have dual(existing) capacitor and single(for fan) capcitor. Can i just use the existing or its better to use two capacitors (single for fan, dual for compressor)? Thanks
Hi Jeffrey, Most of the times when you replace the motor the capacitor that the new motor require is different than the original, so new capacitor has to be used. If you replace the original motor with the same brand and model motor you can use the old capacitor.
@@acprofessor8513 thanks for the reply sir. i replaced the old motor fan with a different brand. My existing capacitor is 60/7.5 micro-farad (440v)dual run capacitor. When i changed/replaced the original motor fan to a new motor fan(different brand), the store told me to use another/additional new capacitor ( 7.5 microfarad single 330v). My question is, is it necessary to have two capacitors (1 existing dual run capcitor, 60/7.5 microfarad 440v and 1 new single run capacitor for fan 7.5microfarad 330v).. The motor fan has two brown wires that are hooked up to single capacitor(new) and its black wire is going to the contactor and the white wire goes to existing(old) capacitor "c" common terminal.. thanks
@@jeffreyreyes3614 If the new motor comes with two brown wires it is best practices to use a separate capacitor. There is a way to use your original cap, as it is the same value, maybe I would make a video to explain how to wire it.
AC Professor thank you for clarifying this. It makes sense now to me since the new motor fan has two brown wires and i have a separate capacitor for the motor fan alone. Thank you so much and more power to you. Continue inspiring people for your awesome videos! 👍🏻
I have a Trane XR14 that is doing the typical buzzing sound but the fan isn't starting or running, even when bump started with a stick. The unit has two single run capacitors. One capacitor (135-162MFD) tested good, and the other (70uF) tested bad. I have a dual run 70/5uF handy. A single run exact replacement won't arrive for another week. Should I be able to install the dual run using the C and HERM terminals?
Michael, there should be another capacitor somewhere. The 70uf is probably run capacitor for the compressor(3-5ton System) The 135-162 MFD is the start capacitor that only helps the compressor to start and then it is disconnected using a potential relay. So there should be another cap for the fan.
AC Professor thank you! Turns out it was the fan motor itself. I replaced the 70uF that was bad. No go. Replaced the contactor next. Still no go. Then replaced the fan motor and that was the second problem. How often do two components fail at the same time? Lol
@@michaelh7770,
Some time a voltage spikes. The higher voltage can take several A/C components together and additional appliances too like a refrigerator or microwave. It happens a lot more than we realize and it is not only because of lightning. A component can fail and we don't realize unless the unit stops working. The fan or compressor capacitor can become weak and components may still work intermittently. The unit will not be efficient and will have less capacity.
For the fan, the test I do is to give it a push whit a long screwdriver or a stick. If that doesn't help and has a lot of resistance and not able to spin it is a sign it may be defective. That is a good idea to make a new video about motors next. Glad you got it working.