im thinkin eithere the alt. An inductive testing like the one I use in this video is the way to go. AC 253.70121 I have had this unit for 2 1/2 years.This ran for one month this year and recently started tripping breaker.I took an amp reading @ breaker panel.It runs for a few minutes @ slightly more than rated amperage then a few minutes later the amp reading slowly climbs to about 30 then trips … If you throw in a motor that doesn't have the horsepower to spin at the required rpm's, it will draw too many amps, get too hot, and burn out. That's what it should be drawing while pumping at capacity. However, under normal operating condition a stalled motor will draw in Re: DC Motor drawing too many Amps « Reply #7 on: December 13, 2014, 09:41:25 am » Failure of these low voltage DC treadmill motors is not uncommon from the research I did a couple of years back. Record the reading and compare it to the FLA listed on the motor. It depends on the temperature along with the speed the fan is on. I have a 5 HP 3Phase Baldor Reliance Industrial Motor that is drawing too many amps. Motor Current Rating Chart for Full Load Amps The information in this chart was derived from Table 50.1 of UL standard 508A. Ceiling fans use very little energy, especially when compared to other cooling methods, such as air conditioners. HP work load, it would draw 23.5 amps, it is only drawing 16 amps. $350 - 10% = $315. And the easy way to check this is to use an amp tester. - Before I begin, here is the kicker: I asked for and got for Christmas a seemingly nice digital test meter(DC) for cars, For example, if a condensing fan motor has an Amp rating of 3 and after measuring the amps it is using 5 amps you know there is a problem and it needs to be fixed before the motor burns up. ARRG … I have to take it back, and it takes … I had this problem when I installed a rebuilt starter motor in an early 1990’s Toyota Corolla recently. It is rated to draw a maximum of 14A and is drawing 18-19A under load. I have a motor problem. The resultant thrust was too little. Therefore, the fan will work harder and the amp draw will be higher than it would be under normal operating conditions. An AC motor uses alternating current to power it, and AC current changes directional flow 50 times a second. It won't hurt the motor. Fan motor, 500 CFM 1.3 Fan motor, 750 CFM 2.6 Fan motor, 1000 CFM 5.5 Furnace, forced air 8.0-10.0 Evaporative Cooler 6.0-9.0 Roof vent fan 2.5 Water pump 6.0 CB radio, receive mode 0.5 These ratings are approximate. I'm not sure how many if the lights are on there is a consideralbe dim when angling or lifting the plow, i even hear the fan change speeds. It has full It was one of those offshore rebuild starter motors. If a motor is an 8 amp motor, and it is only drawing 5 to 6 amps, is that going to hurt the motor? Unfortuneatly when we tested at the factory, we only tested Static Pressure and Airflow. The motor can do more work before it reaches it's design limit. Any explantion for how a “bad” starter motor can crank the engine, but use too many amps in the selenoid circuit? If you’re pulling too many amps from a breaker it will trip. At what point could it hurt the motor? If you are running at full speed, I would also think about having the motor Megged to see if the winding were damaged. Only voltage can do that. My guess is your motor was overloaded to begin with but only slightly, and when the the voltage was dropped from 240vac to 208 vac, that's when the current climbed from about 3.5 amps to the 4.2 amps you measured.. however, if your service was 240vac before, then you would expect to see about a 15% increase in motor amps when dropping the volts to 208. this … Get shopping advice from experts, friends and the community! Motor full load amps are taken from motors currently used by Champion. When I installed it, and turned the key to start, nothing. All wiring should be Motor - provided as a guide to the selection of suitable MEM control gear. :blob3: it seems that when to plow is attached im drawing alot of power. It was drawing something like 40 amps. Just by playing around with the slop of the brush hoods you could affect how many amps the motor draws. Motor Current Charts - AC Motors - full load current tables (1450rpm approx.) It is just not running at its max. This shows there is more HP available. That's what it should be drawing while pumping at capacity. I have another question for the motor gurus. All too often, generally due to a lack of lubrication, we are called out to diagnose a machine with no motor movement. The resultant thrust was too little. Would be good to have a dedicated voltmeter to keep tabs on and a 2nd battery and/or a 2nd alternator wouldn't hurt. When a motor Over-Amps it is drawing more current then it was designed for which will shorten its life and burn the motor up. 6. That doesn't make any sense. Drawing that many amps unloaded may fry the motor. For Also a stalled 10amp motor can burn out with less then 40 amps, even 12-15 is possible. Thanks! One common failure that I have seen that usually causes this is a fan blower motor drawing to many amps,this will cause the wires to overheat and melt like this. The voltages listed are rated motor voltages. If the fan motor is using way too much amperage, the end result is that the Pulse Width Modulated (PWM) fan relay you just bought (or are gonna' buy) is gonna' fry (again). Electrical - AC & DC - DC car blower motor drawing too many amps, or what?! Does anyone know how many amps a blower motor draws on high speed for a kia reo 2004 - Answered by a verified Kia Mechanic We use cookies to give you the best possible experience on our website. is on the outs or the pump or motor are going bad. Automotive Blower Motor Blower motor problems can cause many driver complaints. Here's an idea. Because the fan could come on and lead you to believe that the fan motor is OK, but in reality, the fan motor is drawing too much amperage! power. Read the amp draw of the blower motor. 10 amps at 120V is pretty much a full horsepower, around 60% efficiency or so. We Bench tested at the site, the motor draws 5.5A without load. So we went back and threw in a brand new Dayton 6K778 that we had laying around, basically the same motor as the 5K601. If you were drawing too much current, it would demagnetize the ceramic magnets and turn the motor into a power resistor. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. This is about 2 weeks after we originally replaced it. We have other rental properties in the area, and I'd like to establish whether these folks are reputable so that I can continue to do business How can I tell if my electric fan is drawing too much current. I first used a small boat bilge pump motor that is rated at 1.5 Amps, attached an RC airplane propeller, and placed a switched 12V battery (8 AH UB1260 ) source. It certainly seems that something is awry with either the voltage supply or the motor. We used the fan laws to calculate the BHP curve, but I'm sure it's not off that much. Anything from no air circulation to annoying or noisy operation. No, a power supply with "too much mA" cannot harm the device. Now keep in mind for fans, hair dryers Condenser fan motor drawing high amperage. Advise to replace soon. How Many Amps Does a Ceiling Fan Draw?. Total output is 14v - 33.7a - 472w @ 5k rpm. We usually find this is due to a damaged motor control board that overheated due to a high amp draw, caused That is a lot of load if running everything. Depending on which side of the brush is weaing on the comm more it can decrease or increase the number of amps the motor pulls. The motor is still drawing way too many amps. At a project in Korea we have 3 blowers that seem to be drawing very high current The motors are 460 Volt 53 kW with a nameplate FLA of 77 Amps coupled to the blowers by -----Reason: Current, voltage, and resistance are related by Ohm's law, which can be written as current = voltage / resistance or Three electrical windings on the outer part of the motor enable the central rotor to turn, otherwise they would simply vibrate moving backwards and forwards as … I looked for 8 amps with the break-in fan on the motor at 2.5 amps with a GFX. Centrifugal switches I have had fail the contacts were The wire, breaker and fuse sizes are provided as a reference for the installer and are based on the 1996 National Electrical Code. However, exactly how many horsepower is it operating You won't have longer run times.