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has been a family-owned AC repair and HVAC company in Orlando for over 25 years. Our slogan, “Honesty and Quality at a Fair Price,” speaks directly to our aim of keeping our customers happy.
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Defective AC Fan Motor
How do you know if your motor has failed or is about to fail?
During routine maintenance checks HVAC technicians will monitor the amperage load to the motor. A high amperage will indicate the motor is working too hard and is going to fail in the near future. The easiest way to check the amperage is with an amp meter on the common wire to the motor. Most motors use multiple speeds and each speed has its own specific wire. Using the common wire for an amperage reading takes out the guess work
When you turn on your system no air comes out of the vents and you have already checked for a dirty filter and clogged evaporator coil.
The motor makes a humming sound and does not start.
The motor starts and runs for a short period of time and shuts off again. This is due to the motor overheating and shutting off on thermal overload. HVAC motors have thermal overloads to shut the motor off when it becomes too hot. The easiest way to check this is to manually check the motor using your hand. BE EXTREMELY CAREFUL WHEN DOING THIS! A hot motor can and will burn you. If you are checking an indoor blower motor, be sure to disconnect the power prior to checking. Place your hand close to the motor without touching it and sense the heat. If it is too hot to touch, then the blower motor is overheating and it is time to replace it. An outdoor motor can be check by feeling the grill it is attached to without taking the cover off. If the motor is attached in another fashion then follow proper safety to check.
The air coling out of the vents has a hot electrical burning smell to it. An overheated motor is one of many parts that will omit a smell when is failing. Turn the power off! The hot electrical smell can be noticed on condenser motors just by standing over the unit when is running.
The motor starting is making a louder than usual noise and it is slow to come up to speed.
A motor can be started manually be spinning the fan or blower wheel. USE CAUTION WHEN DOING THIS AS INJURY CAN RESULT. Use an object such as a wood stick to start the fan or blower wheel. If it is hard to spin, then the motor has failed.
How do you know if your motor has failed or is about to fail?
During routine maintenance checks HVAC technicians will monitor the amperage load to the motor. A high amperage will indicate the motor is working too hard and is going to fail in the near future. The easiest way to check the amperage is with an amp meter on the common wire to the motor. Most motors use multiple speeds and each speed has its own specific wire. Using the common wire for an amperage reading takes out the guess work
When you turn on your system no air comes out of the vents and you have already checked for a dirty filter and clogged evaporator coil.
The motor makes a humming sound and does not start.
The motor starts and runs for a short period of time and shuts off again. This is due to the motor overheating and shutting off on thermal overload. HVAC motors have thermal overloads to shut the motor off when it becomes too hot. The easiest way to check this is to manually check the motor using your hand. BE EXTREMELY CAREFUL WHEN DOING THIS! A hot motor can and will burn you. If you are checking an indoor blower motor, be sure to disconnect the power prior to checking. Place your hand close to the motor without touching it and sense the heat. If it is too hot to touch, then the blower motor is overheating and it is time to replace it. An outdoor motor can be check by feeling the grill it is attached to without taking the cover off. If the motor is attached in another fashion then follow proper safety to check.
The air coling out of the vents has a hot electrical burning smell to it. An overheated motor is one of many parts that will omit a smell when is failing. Turn the power off! The hot electrical smell can be noticed on condenser motors just by standing over the unit when is running.
The motor starting is making a louder than usual noise and it is slow to come up to speed.
A motor can be started manually be spinning the fan or blower wheel. USE CAUTION WHEN DOING THIS AS INJURY CAN RESULT. Use an object such as a wood stick to start the fan or blower wheel. If it is hard to spin, then the motor has failed.
Defective AC Fan Motor FAQ
Why is the motor shaft loose?
If you are able to move your motor shaft with little effort, then the part is loose. This part shouldn’t be able to be moved at all. Replacing the fan motor can restore functionality and get the fan circulating properly again. The dual shaft fan motor becomes defective over time along with the bearings become loose.
What to expect when attempting to replace a defective AC fan motor?
The AC fan motor can be replaced for around $400. This is assuming that the fan motor has stopped running because of the start capacitor. When in doubt, contact our Orlando AC repair specialists for assistance.
How come I can hear the compressor running and the fan motor is not turning?
A bad capacitor could be the problem. You can purchase testing equipment of have it tested for free at a local hardware store. Capacitor testing will reveal the state of your AC fan motor.
Why is my AC producing so little air?
The blades on the fan get accumulate dust and debris, which will eventually slow down the system. The blower motor may have difficulty producing adequate amounts of air if the fan speed setting is wrong. Changing the fan speed may be all that’s needed to increase air flow through the system.
What do I do if the fan won’t turn?
The very troubleshooting step is to try to manually turn the blade on your own. Once you’ve verified that it can move, you need to see whether or not the system is getting enough power. If the power reaches the fan motor, but you aren’t able to get it running, you need to get a replacement AC fan motor.
How long is my system supposed to last?
You’re system can last up to 15 years if it is well-maintained. The average life of an air conditioning unit is ten years. The system should be serviced annually. With routing serving, aging parts can be quickly replaced before other system parts are affected.
Ambrose Air, Inc. has been a family-owned AC repair and HVAC company in Orlando for over 25 years. Our slogan, “Honesty and Quality at a Fair Price,” speaks directly to our aim of keeping our customers happy.
Ambrose Air, Inc. has been serving Central Florida since 1990. Our company was founded on the principal of Honesty and Quality at Fair Price. We have done jobs ranging from a simple repair to as large as 3/4 of a million dollar
Ambrose Air, Inc.
6457 Hazeltine National Dr. Suite 165, Orlando, FL 32822
407-857-0889
info@ambroseair.com
We are a state licensed contractor License # CACO42735
Monday > Friday: 7am > 7pm
Saturday : 7am > 12pm
Sunday : Closed
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