The relay is … To figure out if you have a bad A/C condenser on your hands, look for the following signs: Symptom #1: Air conditioning isn’t as cold as it should be. A bad ignition condenser can have several effects on your car. The air condenser has a fan which keeps it cooled down. Most condenser fan motors have been designed to operate at temperatures up to around 150F. A failed condenser fan motor can inhibit freezer cooling because air doesn't move across the condenser coils to cool the refrigerant before the refrigerant enters the evaporator. 7 Signs and Symptoms of a Bad AC Fan Motor. You can likely match this motor up at a local motor shop or HVAC supply house, for about 75-100 dollars. The liquid refrigerant continues to circulate to the filter or desiccator, where the refrigerant is purified by absorbing all moisture and impurities. Keep in mind that the cost of an engine ranges from $300 to $700 depending on the vehicle, model year, and availability. A slow condenser fan (or air handler unit fan) could be caused by a bad start-run capacitor. hold the shaft and move it side to side. If you suspect the issue is the motor, read below for signs and symptoms that the AC fan motor is bad and simple ways to troubleshoot. Usually a bad or failing cooling fan motor will display a few symptoms that can alert the driver of a potential problem that should be serviced. For example: Let’s say an R-134a air-cooled condenser is running at a condensing pressure of 147 psig (110?F) at an ambient of 90?. Idk what's wrong and can't figure it out it ran fine other than a bad motor now it doesn't do anything. Clean the condenser coils if dirty. You might also check that the condenser fan is coming on when the engine gets to operating temperature. best way to check bearing is to take the condenser fan motor (with power off and double checked with a meeter) have the moror sitting with shaft up. Sometimes the inevitable happens. Condenser Failure. A slow condenser fan (or air handler unit fan) could be caused by a bad start-run capacitor. Replaced condenser fan motor with a universal 4 wire motor and old 45/5 capacitor with new 45/5 capacitor and unit will not run at all. Malfunctioning of the thermostat is the cause of the problem. At the condenser the temperature of the medium is very high, the fan blows the condenser, the vapor liquid is cooled, condensed into a liquid under high pressure and low temperature. The most telltale signs that there’s an issue with the fan motor are: The cooling fans won’t turn on; The fan turns on when the AC is running, but the blades rotate slowly Service Location. If the cooling fan motors burn out or fail, the cooling fans will be disabled. www.supercoolsliderule.com -- This video tutorial illustrates how to test and diagnose if a condenser fan motor is bad. One of the first symptoms commonly associated with a fan relay is an AC that blows warm air. Problem is bound to arise whenever the condenser fan goes bad. However, a problematic condenser fan motor may also show other symptoms that can’t be visually detected. Slide it into the vents and gently push one of the fan blades. The condenser fan is in the machine compartment of the refrigerator next to the compressor. It's an aluminum collar on the fan, steel shaft on the motor. This is to enable the condenser effectively convert gas into liquid and then keep the AC system operating effectively. The function of the condenser fan is to keep the condenser cool whenever it gets hot. Open the access panel to the furnace using a screwdriver. 2. Since excessive heat will damage the vehicle’s parts over time, a bad relay must be replaced as soon as possible. If not, the capacitor or the blower motor is not functioning properly. When the fan motor is faulty, there will be several obvious signs: The Fan Does Not Stop Running. The condenser fan works similarly to other fans you have seen. 5 Signs Your AC Fan Motor Is Bad. Reply: If the fan were to malfunction, it could overheat both the air conditioning system and the internal combustion engine. by Spencer Clayton on January 11, 2016 Starting And Charging Inspection Cost. If the condenser ends up going bad, there are symptoms that would be displayed. Your condenser fan motor may not show any signs at all that anything is malfunctioning. Since the condenser fan is visible from the top of the outdoor condenser unit, you can easily tell if it’s working. Bad Cooling Fan Relay Symptoms. So I turned off the system and called installer for service (same company used for maintenance). This can leave the fan motor running.A bad fan motor can also cause the fan to turn but only abnormally slowly. An AC condenser is the part within an air conditioning unit that’s responsible for cooling down and condensing incoming refrigerant vapor into a liquid state. The relay controls the engine’s cooling fans as well as the fan for the A/C condenser. Be aware of the following signs and symptoms of a bad AC fan motor. If damage to the condenser results in restriction of refrigerant flow, the whole system will be less efficient. The motor of the cooling fan is the largest of the three main components of the cooling fan and therefore it is only natural that the motor costs the most money. 1. Noticed over the weekend that the exhaust fan on top of the condenser unit was not running (single speed Trane XR16 4TTR6061C1, installed about 3 years ago). SELECT YOUR VEHICLE. The condenser fan must operate for your ac to blow cold air, especially when the vehicle is not moving. If your refrigerator isn't getting cool, the fan is just one of many possible reasons. Then, you have a larger repair on your hands. Had exactly the same problem where the fan motor went bad and it caused my AC to cycle on and off on over pressure. it wont be visible usually but if you feel any give in the shaft then the bearings are bad. Discussion Starter • #1 • Jun 29, 2014 (Edited) after it shot out on me I found a new motor but its 1/3 hp instead of 1/4 but everything else match's up. If your fan does not stop even after switching off that is a direct sign that the AC motor is bad. 1. Heavy Static in the Radio If the condenser is not able to hold a charge, there will be significant sparking inside the ignition system. There could also be a problem with the fan itself. If you have voltage and the fan isn’t coming on then your fan motor is bad. And since your fan is essential to keeping the condenser cool, the condenser may overheat. Its capacitor works like a battery and stores the energy needed by the blower to work properly. Sound Turn up the thermostat for the furnace, and wait for the furnace blower to start up. These symptoms of AC compressor failure can happen due to failing electrical components or even a fan motor that has become dislodged and is rattling around inside the condenser unit. In many cases, it will be a bad car condenser. The following are the signs and symptoms of a bad AC fan motor. This is a Delta T of 20?. What Does a Condenser Fan Motor Do? When this happens, air flow reduces and so does cooling. A reduction in cooling is your first sign that something isn’t right. One of the most common signs of a failing AC condenser fan motor is reduced cooling. Bad A/C Condenser Symptoms: 3 Common Signs. It also saves electricity. The electric charge and the magnetic interference that it creates will cause a significant amount of static in your radio. According to Repair Clinic, other possible reasons include dirty evaporator coils, a faulty thermostat or a bad evaporator motor (compressor).A loud blowing sound from the motor doesn't mean it's bad either. I could hear the compressor humming and the unit was radiating heat like a pizza oven, never felt heat like that coming from it before. Set screw is loose, I tried giving it a few good blows with a hammer and punch, won't budge. getting the fan off the old motor. If your AC fan is not spinning, find a long, thin object (a stick, screwdriver, pliers). That ought to eliminate a failing compresor motor and also loose condenser unit parts such as a grille, motor or unit isolation feet, mounting, piping supports, failing contactor relays, bad fan motor, or other loose parts. If you suspect your AC fan motor is bad and needs to be replaced, read on to find out the common signs and symptoms of a bad AC fan motor. It moves air across the condenser coils to help cool the hot refrigerant coming out of the compressor. Look out for these signs of a bad condenser fan motor or blower motor. The blower motor in your furnace blows hot air through the ducts and into your home. The AC motor should react immediately when you switch the fun off. Look through the vents for the fan on top of the unit. Bad Condenser Fan Motor. A bad fan motor can also cause the fan to turn but only abnormally slowly. Unfortunately this condition could indicate a burned-out A/C or heat pump compressor motor. Also, check the condenser coils to see if the coils are dirty-dust on the coils can prevent air from cooling the refrigerant. However, you should have it fixed before strain on the system leads to compressor failure. 9 Posts . When there is something wrong with the fan motor, it can overheat and cause problems with the HVAC system. It may be engaging or coming on too late. Unfortunately this condition could indicate a burned-out A/C or heat pump compressor motor. If it doesn’t come on check for 12vdc at the fan plug. This can leave the fan motor running. I'm soaking it in PB Blaster, but so far no go. The motor powers the fan, which is a series of blades that turn to create wind. 2) Hot Engine . A bad or faulty capacitor can exhibit many signs and symptoms. Unfortunately I was pressed for time and took it to an AC guy in Pensacola that replaced the fan to the tune of $240 for the fan and 175 for labor. Cooling fans do not come on. If the condenser fan is defective, replace it. Worse, I can't drive it off, because the fan is close to the motor, no way to get to that side. But with a bad capacitor, your blower cannot function well and may put your family’s comfort at risk. QUOTE=mdshunk]My flat rate book says that changing the condenser fan motor on that unit will cost $345. The refrigerant is cooled before it moves through the expansion device and into the evaporator. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. This will usually happen when the engine is idle, and the vehicle is not moving. ... number of things. A week later I found out I could have gotten the fan motor for $63 and done it myself. The symptoms of an ignition coil going bad are bad fuel economy, backfiring, starting problems and engine misfiring. Though considered a single component, it’s made up of several parts, such as a motor, fans, tubes, condenser coil, circuit board, and a … That should also eliminate noises traced to improper voltage such as too-low voltage and a motor unable to start. A condenser fan motor is part of your HVAC system that is located within the condensing unit. If the signs above apply to your situation, walk outside toward the air conditioner’s condenser unit. 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