Of course I'm hoping it isn't the compressor, but at some point everything else will be ruled out. If so your windings have lost their varnish and your compressor has been cooked. To learn about our use of cookies and how you can manage your cookie settings, please see our Cookie Policy. October 2012 A refrigerator is one of the hardest working appliances in the home. He is a 26-year veteran of the U.S. Navy/Navy Reserves and the Navy Seabees. I do, however, commend you on your ingenuity. The compressor is moving. June 2013 Burton holds a B.S. March 2013 Bleed a tiny bit of gas out and have a sniff, does it have a kindof burn smell to it? At the second We would love to learn you want such a web web page, in circumstance which down the road may be noteworthy, which usually is sort of certainly alongside these collections banuak gain to a lot of people. If the overload protector senses that the compressor is approaching failure from overheating, it will temporarily shut the compressor down to allow it to cool. The overload protector is a small piece that provides a valuable service for any appliance that uses a compressor, such as a refrigerator or air conditioner. A couple nights ago, I noticed that my fridge was clicking loudly whenever the compressor would kick on (and then back off). I'd say you've lost your start windings (burnt out somewhere along the windings, causing the windings to short together). July 2012 The refrigerator overload protector testing is very easy using a multi meter, to test your refrigerator thermal overload protector follows the below steps. This makes starting the compressor much more difficult and often causes the thermal overload to trip. Since then, I've unplugged it, and it's at room temp. When it works the air is cold no strange noises and everything works perfect. Lockers and cabinets obstructed the airflow which lessen it's efficiency. 2. Without those resistances, my other first guess would have been a faulty start cap or start relay and it's getting stuck on run. I really appreciate this but how do I now figure it out if it still insist tripping for overload. Also surprised to hear it has a run cap, but no mention of a start cap? Could it be a bad thermal resistance or is my compressor leaving me? I'd really appreciate any suggestions about what might be the issue or what I could measure to figure this out. Strangely, resistance does NOT add up, with common to start and common to run both about 8-9 ohms, and between start and run at 6 ohms. Don't run the new one on an extension cord either! May 2013 Thanks and jerp safe everyone. For more please visit www.gaslicht.com. When people hear the refrigerator working, what they are hearing is the motor powering the compressor. Hi Guys, looking for some help with a fridge compressor. Pull the wires that clip onto the piece away from the protector. BEEBE Heating and Air Conditioning, Inc. 9104 Cody St. Overland Park, KS 66214 (913) 541-1222 December 2012 In my frustration, I decided to bypass the overload for a few seconds to see what would happen (I know I know, but I have not much left to lose). Back on the overload, behavior resumes as before tripping the overload. The compressor is normally near the rear floor of the refrigerator. The site may not work properly if you don't, If you do not update your browser, we suggest you visit, Press J to jump to the feed. My AC starts and works for half an hour then the compressor stop while the fan keeps working. When a compressor is tripping and very hot the term used is: thermal overload. Then this problem occur the thermal overload keep on trippin?? So i change it with a non detergent air compressor oil. The overload protector has a wire running from it directly to the compressor, which makes it easy to identify. This 15 amps is of course not normal here, and tripping the overload. It's about the only explanation I can think of for having an almost equal start and run, but a lower resistance for start + run. Replacing the overload protector takes only a few minutes and can be done by the homeowner. January 2013 The coils are not open or shorted to each other or shorted to ground. This causes the compressor to have to start while the refrigerant tubes have not had their pressure equalized. It comes on runs, shuts off and then tries to restart in under 5 minutes. The compressor seems to run, but shakes a bit, then a bit more, and may have locked up/kicked off just before I unplugged it. So, now it’s time to replenish that body and treat it nicely. I'm measuring 15 amps of current draw through the compressor, which isn't dropping after 1-2 seconds. February 2013 He has managed radio stations, TV studios and newspapers, and was the chief fundraiser for Taltree Arboretum. The outside coil is dirty or folded over so that the system has trouble rejecting heat, this causes the compressor to have to work harder and hence get warmer. Hi there! I just want to say that when a compressor fails, the system also starts to collapse. Also the overload relay itself could fail. I'm measuring 15 amps of current draw through the compressor, which isn't dropping after 1-2 seconds. Oh it will run but will end up just like what happened, runs a little higher amps and over time it sits and gradually cooks that varnish away then hmmmm click! November 2012 Press question mark to learn the rest of the keyboard shortcuts. The resistance drops from 12 to 10 ohms as it first heats up and then the resistance rises quickly (this appears to be correct based on PTC temp/resistance charts). Jones Air Conditioning: (239) 596-5855 Naples, Bonita Springs, Marco Island 24 Hour Air Conditioning Service, Repair & Replacements. I've measured voltage from common to both run and start windings during "startup". The fridge was cold, and it seemed to be maintaining temperature from these short bursts of compression (maybe it wasn't but it hadn't been long enough for it to have cooled down). The coils are not open or shorted to each other or shorted to ground. You are now sweaty, beat, but probably feel pretty darn good for how hard you just worked. 1. By continuing to use the website, you consent to our use of cookies. Have i question and hopeflly someone can help :) in broadcasting from John Brown University. Therefore always ensure the motor thermal protector has not opened. There are two usual suspects. or the old atf oil residue etc is mix wth the new oil inside the hernetic comp? Your start and run windings should not be equal, and the total of start -> common + run -> common should be equal to start -> run as the windings would be getting measured in series. A compressor on thermal overload could eventually be a shorted compressor. Wow this is an useful tip. Compressor tripping on thermal overload; Cookie Consent We use cookies to improve your website experience. An adjustable overload relay could be improperly set up, causing it to trip with a normal surge or temporary overload. No matter how durable it is. By creating an account you agree to the Hunker, Reliable Appliance Repair Crew: Identification of Failed Refrigerator Components, Acme How To: How To Replace the Overload Protector. September 2013 Hunker may earn compensation through affiliate links in this story. Any advice about this will surely help me to fix this problem. There are two usual suspects. This 15 amps is of course not normal here, and tripping the overload. With those resistance values, I would have said the compressor is faulty. Push the spring clip that holds the piece in to the side with a screwdriver and insert the new overload protector. With the passage of time, now people have realized that it is the education which helps them to earn livelihood for their family. The compressor is the reason why refrigerators feel hot in the back. Capacitor across the PTC marked 5uF ±5% measures 4.62uF. Same as here in workers camp. This critically important part starts the cycle of refrigeration by doing just what its name states -- it compresses the coolant into a smaller volume. Otherwise known as a vapor pump, the compressor then sends the coolant out the discharge line and to the condenser. This within about 5 seconds of starting up. The weird thing is, the compressor seems to run for the 1-2 seconds before the overload trips, so not sure why the run winding would be drawing 15A. The electrical wires that provide power to the parts of the refrigerator all run from the junction box at the rear. Do not pull on the wire itself, but on the attachment clip with a needle nose pliers. Buy a Supco "3n1 Starter" and install that on the compressor. It's not just a hum, its definitely moving, so it isn't mechanically locked. Is it because of the oil not comptible? September 2012 The start coil gets 230V (Europe) briefly, then drops out, and the run coil gets 230V constantly once the first start attempt is made. 1. The lid is usually held on with a clip that is popped off with a screwdriver. The compressor is 'short cycling'. I replace the original oil with ATF, i read it in an article alternatves fr air cmpssr oil. It just seems so strange that the fridge would run for over a year in that condition without having any issue, especially the overload issue, but I can't think of a better explanation for why the resistance doesn't add up. There are many parts inside the box that must work together smoothly in order to keep the inside air at the desired temperature. Education makes people to determine the possible earnings so that they can continue. If your compressor feels like it is constantly trying to start and can not start it is time to call a technician to diagnose what is causing this. You appear to have ruled that out though. Build a homemade air compressor out of a fridge compressor. When a compressor is tripping and very hot the term used is: thermal overload. If the compressor doesn't work, it's bad. August 2012 Jack Burton started writing professionally in 1980 with articles in "Word from Jerusalem," "ICEJ Daily News" and Tagalong Garden News. I've pulled the PTC and measured the resistance over a range of temperatures. This is easy to access but should only be done with the unit unplugged from the wall. Especially when temperature setting is always in high cool or supercool for a long time and doors kept open and close. April 2013 Replace the wires into their clips and the new unit is ready to go. The overload protector sits near the condenser by the current start relay and ensures the condenser does not overheat while working. If I leave it off for some time it works again for half hour. The overload protector sits near the condenser by the current start relay and ensures the condenser does not overheat while working. May 2014 Give us a call if you have any questions: 239-596-5855. The compressor is moving. As it does its job, it generates a great deal of heat. There is a huge difference between a refrigerator and a home air conditioner and compressors are not necessarily compatible. Overload Relay Failure. New comments cannot be posted and votes cannot be cast, More posts from the refrigeration community, Questions, discussions, and stories related to the Commerical and Industrial Refrigeration industry, Looks like you're using new Reddit on an old browser. As it does its job, it generates a great deal of heat. May 2012. 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