", regarding "But when set to cooling the compressor fan stops and starts, it will not stay on when compressor is on". An Overheating Engine Could Indicate a Problem with the Condenser Fan. Just had an older unit replaced by a new 3.5 ton inside air handler and outside condenser. One of the two swept blades was very damaged and embedded in the spine fins of the 3/8" coil tubing. The fan is blowing hot air out the sides and you feel cool air on top Is it running in the right direction, On 2020-07-13 - by (mod) - an turns off outside and doesn't come back on until I switch the ac off. at BURNED-OUT COMPRESSOR, if the condensing unit fan is not working the compressor itself may shut down or even be ruined by overpressure or over temperature. Question: condenser unit fan startup troubleshooting - condenser fan starts slowly or stops completely. Contact us if you have suggestions. The evaporator fan can be found behind the rear panel of the freezer and testing it yourself can help you troubleshoot freezer issues and save you money in repairs. First determine where the noise is coming from. Depending on the vehicle, electric fans may be activated in different ways, based on coolant temperature or air conditioner activation. The fan motor and capacitor have been replaced. The condenser fan motor pushes air outward, past the condenser. The old motor was connected to a dual capacitor, I bought a new capacitor for the new motor. In a nut shell, the condenser is responsible from moving the heat that was removed from the inside air, to the outdoors. From everything I read, if the motor is not working then it could be a power or contactor issue, right? If it isn't seized, check the control voltage on the relay that controls it. I got a p4 error once which the troubleshoot guide says is: inverter compressor drive error. my condenser fan is a trane fan03652 or replacement fan04690. The ECM condenser fan motor connects to an electronic control module. The condenser unit fan is a blower that moves outdoor air across the condensing coil found in the outdoor compressor/condenser unit. On your site there was a video on how to swap out motors for my refrigerator. The dark blue fan shown at right in the sketch is the indoor air handler or blower compartment or cooling coil fan found inside the building. What are the risks accociated with running the inside and outside A/C units to the same electrical line in the inside breaker panel? If the capacitor is not bulging or leaking, replace the condenser fan motor. The fan is still cutting off and not cutting back on. Bob,Thank you for the helpful diagnostic question about your Pioneer brand Mini Split AC unit. Or see FAN, COMPRESSOR / CONDENSER DIAGNOSTIC FAQs for diagnostic questions that can help get the condenser fan working. The movement of outdoor air across the condensing coil transfers heat to outdoor air and allows high pressure/high temperature refrigerant inside the condensing coil to condense from a gas back to a liquid refrigerant. ugh, I mean I did those 2 tasks separately hehe. We list this sequence of condenser fan troubleshooting checkpoints roughly in the order that an experienced service technician will try them, putting easy, cheap, or more likely causes higher in the list. Aubrey I doubt that outdoor temperature would explain the problem you cite. Watch out: the wiring instructions and diagram for your specific air conditioner or heat pump compressor/condenser unit are model dependent. Installing a fan motor and capacitor where the capacitor does not match the specs on the label of the fan motor. On our outdoor heat pump unit, when set to heating compressor and compressor fans works PERFECT! If it won't, it's seized, and must be replaced. (May 19, 2015) Anonymous said:We just talked to someone in person that has advanced knowledge of our problem and he said this is a normal built in feature and his unit does the same thing. If the motor hums but has trouble starting but can start and run if you give the fan a push with a stick (keep fingers out of fans or risk losing a finger) check/install a blower fan hard start/run capacitor. Capacitor, 240V relay both good. Check for a fan blade hitting an obstruction in the unit; possible failing blower fan motor. Troubleshooting ECM Motors for Fan Coils Check LOW VOLTAGE at R and C, at the control board Pins 8, 9 of twelve pin connector (SHOULD HAVE ~24VAC) FAN COIL PINS @ CIRCUIT BOARD CHECK W1, Y/Y2, Y1 (USES 24VAC) AUX/HEAT KW/CFM, AC/HP SIZE, SYSTEM TYPE, AC/HP ADJUST, ON/OFF The wires from the motor are hooked up to this control module. Humming fan motor usually means either a bad starting cap or a seized motor. Turn off power and assure that the fan blade is secured to the fan motor shaft. Because of this,the room doesn't chill at all. Could be a bad start-run capacitor or a bad control board. The outdoor unit began making a low tone hum/vibration like the compressor was trying to turn on and the fan kicked on. If your unit's fan is not working efficiently or at all, however, your unit's overall performance can diminish. Note: appearance of your Comment below may be delayed: if your comment contains an image, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. Ordered a new one off Amazon with the same CAP rating. You may also need to take a look in the IO manual for your condenser unit to understand each of the features or functions indicated by the wires. This condenser fan motor kit includes a motor, fan blade, wire harness, and screws. https://www.gettyimages.com/license/200272324-001. I can hear the coil from the tinny fan control circuit board turning the fan off and then back on during this problem. What would be the risk in not connecting the red wire to anything and just connecting the brown, black and yellow wires? Any idea what this could be? Listen for a humming sound that tells you the AC compressor is functioning. Now the compressor comes on (freon line gets cold) however; the condenser fan is not running but humming. Condenser Fan Motor Troubleshooting. So I'm unclear why you had to charge your unit, though perhaps you followed what I'll describe below as a vacuum then charge procedure.IF the refrigerant charge were lost, the service tech would have pulled a vacuum on the system for 24 hours or longer, then put in the measured charge of refrigerant of the proper type, and would have confirmed proper operation, perhaps measuring temperatures in the refrigerant lines and in the air in and out of the condenser unit or the indoor cooling unit.Below is an example - for other readers, of a Pioneer mini-split AC system.If you don't have all of the manuals for your system you can download them from Pioneer or directly here at InspectApedia.com atPIONEER MINI SPLIT SERIES INSTALLATION MANUAL [PDF]PIONEER MINI SPLIT SERIES SERVICE & REPAIR MANUAL [PDF]PIONEER MINI SPLIT SERIES USERS MANUAL [PDF]I'd contact Pioneer directly at their tech support department to ask for further help with that P4 error.Contact Pioneer at(800) 919-0150https://www.pioneerminisplit.com/. This fan blows building air across the evaporator coil (or cooling coil) to cool and dehumidify indoor building air. This movement from air transfers heat from the refrigerant to the surrounding. An internal short that is grounding the fan motor windings can leave the fan running, but abnormally slowly. The air conditioner or heat pump condensing coil (shown at left) receives high pressure refrigerant gas from the compressor and cools this refrigerant gas back to a liquid state. Inside the house is warm and could have been blowing warm air. I have a trane heatpump. Sketch from Carson Dunlop Associates. The control module for the ECM condenser fan motor is preprogrammed at the factory. If your AC has stopped blowing air, has weak airflow, or you hear unusual noises, do a quick inspection of the fan motor. I have not got that error since. Minor bends can be corrected manually; damaged blades need to be replaced. I am not convinced the fan was fixed either the first or second visit. My Repair & Advice Featured Story. The Outdoor cooling fan (the subject of this article) moves outdoor air across the condensing coil to cool it and assist in condensing the high pressure, high temperature refrigerant gas back into a liquid.It is this process
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