Also, noticed the old fan wire actually has a quick connect coupler for all four wires to connect into a circuit board. 1401 Clearlake Rd. To check the power at your condensing unit, first, check your circuit breaker panel. Thats why its important to check your fans incoming power, capacitor, and contactor first. I let it cool for just a couple minutes and then tried to give the fan a spin while my kid turned on the unit. with power removed, try turning the Motor shaft by hand..using your fingers Can you give it a twist, and it will continue for a few turns ? The green line marks a common location for the fan control circuitry, and the blue line marks the fan motor. This is speculative. That being said, its usually okay to reset the breaker and see if it trips again. A loose A/C fan. Shouldn't the coil last longer than that? Fan is brand new. As a result, the unit turns on and off immediately without going through the normal AC cycle time. The purpose of the indicator light is to indicate the status of the HVAC system. Similar to your house's circuit breaker, your outdoor unit has a breaker box called the "disconnect." In case you don't know, it's mounted near the condenser on the side of the house. Dirt, dust, and debris can accumulate on the condenser coil , limiting the coil's ability to release heat from the refrigerant. Is the fan blade assembly secured to the fan motor shaft? Tried again after washing out well. One copper line cold and one warmer like normal. As an Amazon Associate, I earn from qualifying purchases. Are the bearings damaged or covered in sludge? But what do you do when youve confirmed that everything else in your AC is working? If it is a heat pump check for a heat pump breaker trip and reset it. Gina Im having the exact same problem. If the fan spins on the motor shaft and the motor shaft won't turn the motor may be seized and need replacement. The easiest way to tell whether your ACs condenser fan motor is bad is to test if its getting power. Cut the metal rod of the motor, before putting the new motor on the grill. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly. Typically, there's an on-off . Also possibly there may be no power to the fan and fan blades are moving due to local breeze blowing through the unit. If the condenser unit fan won't start at all, check for power to the unit and to the fan motor and that all of the controls are calling for cooling (or heat pump operation); check for loose, disconnected wires; Check for a frozen fan motor (motor won't turn manually when power is off). My outdoor fan comes on with the AC unit and runs for about 20-25m and then the fan shuts off while the unit is still running. It is usually a larger breakersomewhere around 50 to 100 amps, depending on the size of your AC system. my condenser fan is a trane fan03652 or replacement fan04690. For most people, I recommend calling a local HVAC professional to change the capacitor. (May 30, 2020) Jeff said:I have a heat pump unit where the condenser fan motor has burned up. One copper line cold and one warmer like normal. When it stops, feel the Motor to see if it's hot. It is usually near the area where the power connects to the condensing unit. New to this site however have an issue similar to above. The problem came back. Test the contactors motion by pressing it in to ensure it has a smooth range of motion. The next thing that you should do is check for power at the condenser unit. HVAC Training Shop is reader-supported. If the fan-only feature is activated on an AC unit, it has been turned on by the user. Remove the panel at the bottom of your refrigerator. Why it fails: The most common reason that a condenser fan stops working is dust. When the condenser fan is well-maintained, it prolongs the life of the entire HVAC unit. A bad fan capacitor will cause an ACs condenser fan to not run. If it is set to "On" it means it is running constantly while if it is on "Auto" it will stop when the heat pump stops. Any idea what this could be? Is the drive separate from the compressor? The condenser fan is visible inside of the outdoor compressor/condenser unit such as the unit shown in our sketch at left, an in our other photos on this page. Heres What to Do. This will shut off your unit. I will contact pioneer. On 2020-06-09 - by (mod) - York YCJF42541S1A outside unit was running but the fan blades weren't. A blower fan may run for a brief while after the compressor motor has stopped but if the outdoor fan never stops check for a problem with the control board wiring or circuit. The four screws of the fan motor to support frame were still tight, as were the four bigger screws attaching the framing to chassis (minus spacers). Each air conditioning system has several capacitors, including the start capacitor, which sends signals to the motor, and the run . Thermostat Issues. The problem still came back in the mid day heat. Capacitor is brand new. Not enough space clearance. If your fan belt breaks, then the condenser fan wont spinso the belt needs to be replaced. FAQs | Repair Videos | Academy | Newsletter | Contact, By This is because when you pushed the blade with the wooden stick, you were performing its function. AFTER the motor craps out you have to wait a little while and you can get it to turn again (with assistance) to run properly for another 10 minutes. AC started back up, and it repeated the same issue. Background, been working fine for years. The compressor is depending on the fan to move air across the condensing coil to convert high pressure, high temperature gas back to a liquid refrigerant. Is this more likely the fan bearings? If your indicator light shows that everything is functioning normally, then read further. ", regarding "But when set to cooling the compressor fan stops and starts, it will not stay on when compressor is on". It comes about every 10 minutes or so. The condenser fan has not stopped. I don't want to spend the money if it is a capacitor. Im at a loss. Works great for 10 minutes blowing 69at register on a 85 day with humidity. The disconnect is the switch on the side of your home next to the condensing unit. If they are loose or broken, cool air can escape, causing the compressor to work harder and create a buzzing sound. Faulty circuit board. Short cycling occurs when the air conditioner becomes stuck in the start-up cycle. Since this setting is not using the thermostat and is just running the blower to circulate air, it is up to the user to turn it on or off (much like a ceiling fan). Replace the blade, taking care not to bend it. I then went online and bought a new fan for $22.00 and installed it. HVAC air filters should be changed every one-to-three months. Heres What to Do, Outside AC Unit Making Noise? Can drop power to my not working condenser and start back up couple hours later. (May 20, 2015) Aubrey said:Correct. After running fine for like an hour the condenser unit fan would stop but the compressor would continue working. The fan would run for a while then stop. There's A Rattling or Buzzing Noise Coming from the Condenser Unit When the Fan Is Turned On. Unscrew and lift off the top panel. The fan stops on the condenser. Since then, I bought a mini split pioneer seer 19? That also means its bad. You will see the valve on the right side. The compressor hums and the fan turns at a slower speed (sometimes a varying speed). Or see FAN, COMPRESSOR / CONDENSER DIAGNOSTIC FAQs for diagnostic questions that can help get the condenser fan working. When the capacitor fails, the condenser fan will no longer rotate. Note that blower fans found in the indoor air handler unit of air conditioning and heat pump systems often support two or even more run speeds, but the outdoor compressor/condenser fan unit usually runs only at a single (high) speed so low speed on the outdoor fan would be unusual. Same. 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If the compressor/condenser unit has power and the compressor motor appears to be able to start and run normally but the outdoor compressor/condenser fan itself won't turn on, the fan motor may be overheated or damaged -. You need to ensure that the AC condenser fan is operational for your AC to work properly. I don't mind paying for both the capacitor and the fan motor, but of course do not want to spend more than necessary. The motor cost me $165.00 from Amazon, and the cap came from another supplier..so $180.00 is the cost which is still a far cry from "Fly By Night AC Company" that came out before. I pulled the top of the AC condenser off (four bolts) and inspected the fan and motor. 3. I can hear the coil from the tinny fan control circuit board turning the fan off and then back on during this problem. Was interesting to learn. 2. Today it is at 0-40. Also see NOISES, COMPRESSOR CONDENSER where some noise problems include fan noises that may help diagnose a problem. This is at the front of the refrigerator underneath the door. InspectAPedia tolerates no conflicts of interest. Proper and regular lubrication of the fan motor is necessary for the motor to run smoothly. Thats a surefire way of knowing that a capacitor is bad. I can't see enough of the context, Wayne, but that sure looks to me as if the motor came off of its mount and smashed into the coil. Unfortunately this condition could indicate a burned-out A/C or heat pump compressor motor. Make sure the door seals are properly sealed and tight. Powered by Invision Community. Bob,Thank you for the helpful diagnostic question about your Pioneer brand Mini Split AC unit. My new cap and motor arrive Wednesday, so I'll change them both out. Replace or reset a faulty thermostat. The fact that your fan is reversing direction tells me that this is a heat pump and the controls are miswired or oscillating between heating and cooling, or there's a fan wiring error - as the unit's new. This is usually the case for air conditioners with rotary dial thermostats. Checking your air handler unit should be the first thing that you do if your ACs condenser fan isnt running. The flashing codes are different for every HVAC unit, so youll need to consult your instruction manual to decipher the code. We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. At worst, it could cause irreversible damage to the compressor. The condenser fan should always be running if the compressor is on. Could this just be the run capacitor? Within this unit, a fan blows cool air over the condenser to keep it cool. Welcome to the forums. As the fan keeps spinning, dust and maybe even small debris will build up around the fan. The AC ran for about 1.5 hours and then shut down the fan due to overheating. Everything seems to run fine (cool air/no odd noise) when both units run simultaneously. 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