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AC compressor running but fan not spinning
Hello everyone,
It's about AC season where I live and I did a trial run of the AC to check everything is working ok and the compressor is running but not the fan in the AC unit outside.
2 or 3 years ago this happened and giving the fan a push helped it running (the push was needed occasionally, most of the time the fan was running on its own).
It happened again a year ago and decided to investigate more and I ended up installing a new capacitor.
After that, it ran all season without any issues.
This year it happened again, I haven't tried much but thinking if the capacitor got discharged, it is draining, or do I definitely need a major overhaul/new AC?
Any help and pointers are appreciated.
I'm handy and can do most work on my own unless it requires special tools or considerable repairs.
Question from user chill-a-killer at AirConditioners at reddit.
Answer:
If the compressor is running but the fan is not, it could be due to a fault in the capacitor, motor, or wiring.
Based on your previous experience, it's possible that the capacitor is faulty again and needs to be replaced.
Capacitors can discharge over time, and if it is not holding the charge properly, it can cause the fan motor to fail.
Before replacing the capacitor, make sure to turn off the power to the unit and discharge the capacitor by shorting the terminals with an insulated screwdriver.
Then, remove the capacitor and test it with a multimeter to check its capacitance and voltage rating.
If it's not within the specified range, you may need to replace it.
If the capacitor is fine, then you may need to check the wiring and the motor.
Check if the motor is receiving power and if there is continuity between the motor windings.
If there is no power, check the wiring connections and fuses.
If there is no continuity, then the motor may need to be replaced.
In any case, it's worth investigating the issue before considering a major overhaul or replacing the AC unit.
However, if you are not comfortable working with electricity or do not have the necessary tools, it's best to call a professional to diagnose and fix the issue.
Answer from user BrysonCPA at AirConditioners at reddit.
We contacted TwinTech after having another ductless air-conditioning company come in to quote on a solution for our townhouse. We had a unique problem where my office was a hot spot - it's at the front of the unit and gets a lot of sun. If it's 20C outside, It's 29C in my office. The other company could not build a solution that would get a ductless unit to that room because of the location - the AC unit would have to be at the rear, and ductless systems would have to be on that side of the interior. TwinTech suggested a hybrid solution to fit our unique problem, where the ductless unit would move cold air to an air exchanger installed in our bedroom closet, and then they built a ducted vent system between all the upper rooms. This was less intrusive than building a central air system, and less expensive. Each room has a vent that I can close off, so I can push more cold air to my office when needed. We really didn't want ductless units sitting on the walls, and this looks and works better. I really appreciate the extra thought and care that went into the design of a solution, and the attention to detail in the installation. They answered all of our questions, and were able to do a bit extra by installing the ducts around the vents and painting them for us. It cost more than we originally planned for, due to our unique needs, but the fact that they offered financing helped us budget for more.
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How lucky are we to have this team come save us from our broken down, under sold, poorly installed previous unit (mind you there is a reason SEARS went bankrupt). Bob arrived on time to give us a detailed review of our unit and furnace; very knowledgeable. Greg arrived as planned with the new unit and reiterated what Bob explained how our furnace is equipped to handle the new unit and we didnt need to spend more money on a variable speed air conditioner. Cant say enough on how professional, efficient and personable this team is. Thank you so much guys!
We used Twintech for our replacement AC. Bob did a great job assessing what we needed and organized the install and showed up on install date. Greg and Mitch were on time and were very neat. They covered the traffic areas with a drop cloth and did an excellent install. Great clean up after install complete. Would recommend Twintech for heating and cooling.
They were fantastic, clean, freindly, great service. Would definitely recommend. Answered ally questions and more.
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15 minutes later, the pilot went out. It would not stay lit. Greg had Bob call us and we set up a meeting for about 11 a.m. that same Sunday.
Bob walked us through the options and even brought 3 electric space heaters for us to use. By Tuesday afternoon, we had a new Furnace and central air installed.
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Thanks guys!
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Would like to thank TwinTech for their quick response to our furnace repair. We used TwinTech to install a new furnace and AC a few years
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We are extremely happy with their customer service and would highly recommend them.
Gary & Kelly
This is the second time we have had Twintech to our house. A couple of summers ago they were in for an issue with our air conditioning. This time it was our furnace having an issue. It was shutting off randomly and not coming back on. Greg came right away and took the time to investigate thoroughly and explain what was going with the furnace. Both times I have been thoroughly impressed with their speed, customer service, and quality of work. I HIGHLY recommend Twintech.
Extremely happy.
So we were in no rush to replace our old units and took the time to do some research and get a number of quotes.
Twintech came in at around the middle of the pack for price but what convinced us to go with them was Bob, the representative that came to our house. Bob was by far the most professional of all the reps that we met with. He took the time to explain everything, what would work best for us and why. He really did seem very knowledgeable and enthusiastic about his stuff.
As promised on the day of install the crew showed up on time and got to work with minimal impact on us
..they were professional, clean, tidy and got the system up and running ahead of schedule...they made a couple of adjustments to the system to optimize it for our house.
The crew left the house clean and tidy.
Bob the rep showed up to check in and give us a few tips ..
It's been a week since install and all is good.
Our overall experience with Twintech has been excellent from start to finish and I wouldn't hesitate to recommend them.
Thank u.
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We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!
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Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.
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