I bought a 96 Warrior as a project. The three big yellow wires coming from the stator will put out a BIG amount of voltage, way more than twelve Volts, that's what the reg/rectifier is for. 1 cause of unnecessary alternator returns. After the second one, I was told to have it mounted outside of the frame. The question is, what could have cause the transformer to burn (shorted primary winding, bad smell from transformer internal parts, open primary or secondary winding and etc)? hope this helps. I was told it had a bad CDI. Yes, it is shorted or open. The rectifier simply converts AC electricity into DC. The difference between a standard rectifier and CDI’s Regulated Rectifier is simple. What happens when a diode is damaged, is it shorted or open? As more and more people work from home during the coronavirus pandemic, work-related stress may increase as the boundaries between work and home life become blurred. Here's an EASY way to know if it is working properly or not. I hooked it all up and got to crank it over a few times. The compound looks a lot like and has the same consistency as toothpaste. They do produce heat and need sufficient cooling to avoid failure from overheating. Now, this is my 3 regulator/rectifier that had burnt out on me. The Eng-Tips staff will check this out and take appropriate action. If one or more of these diodes fail or have failed, then your stator is essential running overtime (burning out) trying to charge your battery on a single phase (one of the diodes). 3 of them I couldn't figure out what was going on. The 6 diodes in the rectifier are rated to continuously handle the maximum output current of the alternator. (Caution don't touch it long) this happened on my orange ad15 last year. They would probably have to do the math for a specific amp and not try and make one-size fit all like Weber. If it is, then it looks like a substantial one. I basically got a lose of volume after playing for a minute or two then it went completely out. On my SE the regulater rectifier went bad it was over charging the battery. It seems they overheat, melt the leads, and then if it shorts to ground it can cause a fire. I took the suggestion and purchased a 65A rectifier with a heat sink attached. A defective connection may be caused by corrosion or an open circuit from a break in several battery cable stands. I went through the carb and got a new CDI. I then heard a buzzing sound like electronics burning up. What causes stators to burn out - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website. I had installed HID's 3 days prior, but it could have been just coincedental, let me know your stories and if you think this did it. In theory, if someone takes time to work out the math and test it, they can get the exact same behavior as not just any tube rectifier, but their favorite one. If you're feeling stressed out at work, you're not alone: 83% of US workers are suffering from some kind of work-related stress, which causes one million people to miss work every day. Thank you. If all the components are wired correctly the regulator and/or rectifier will not "burn out". FAILURE TO USE THE HEAT COMPOUND WILL CAUSE PREMATURE FAILURE OF THE PART. IF the tube is cold. On the back bare metal side of the rectifier, place a “pea” sized amount of compound, then reattach the rectifier to the mounting point. Now, should the receiver be turned off and on without allowing the tubes to cool, another problem presents itself which generally causes the filament of the tapped section to burn out. Misdiagnosis is the No. Do not over tighten the screw. Instead of getting a UK plug one he just plugged another adapter in that had a higher voltage and it's fried what looks like a diode on the board. Make sure the rectifier is getting air to it to keep it cool and that it's grounded well to the frame. I have a Philco 52-942 AC/DC set that has been totally restored, all caps/ resistors replaced, and tubes checked-the radio plays wonderfully, and sounds great.The only problem with this set is that it always burns out new pilot lamps after warm up. There are some single phase, regulator rectifiers as well which perform a similar function but there are only two wires coming from the stator into the regulator rectifier which is then fed to the battery in the same way as the three phase system. I was in a trip and it would bearly start took it to a shop they checked the battery and voltage while it was running everything checked out. I do not know for fact that Merc used the same rectifier/regulator unit. By understanding these causes of burnout and considering what you can do to make changes, you can come to a more objective conclusion about … Do not only test your customer’s old alternator to verify it is bad, but also test a new or remanufactured alternator before it goes out the door to verify it is good. 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 a known problem on the same Yamaha engines, 80-100 FS's. Michael Pollick Date: January 20, 2021 If a string of Christmas lights has a single wire connection, it can cause the entire string to go out when one bulb goes bad.. A seemingly innocent string of Christmas lights actually has many tricks up its sleeve, most of which won't be discovered by the household tree decorator until it's too late. From my experience, below are some of the possible causes: 1) Lightning strike. What burns up the voltage regulator. 1. He indicated that running the motor with a bad rectifier could burn up the stator. I changed 3 on one engine: Two caused fires, one major and Yamaha covered the dealer repair ($2,500) out of warranty. There is an easy test. If the reg/rect has a dead short in it... i.e a live wire is grounding out to the negative, which my freind had on his Virago 535.... the reg would instantly kill the battery off. This is done by inverting the negative portion of the AC voltage to generate a positive voltage. The rectifier converts the AC voltage into a DC voltage as shown in Figure 3. Is this at all possible? Reply To This Thread Posting in the Eng-Tips forums is a member-only feature. I have to go pick up a new rectifier today after work, I'll try changing that connection and see if it works. Don't forget to try a new rectifier tube--they can cause all kinds of problems including weird noises. I went back and checked the circuit and I definitely have the - pin of the rectifier connected to GND, which would explain a lot about why I burnt out the part. My dad bought an android TV Box and it came with a foreign adapter. I would hate to install my new rectifier and have it burn out due to HID's Thanks, Will. My rectifier is definitely done after performing all appropriate tests. then you know its gone. One I found out is by touching the rectifier tube when the amp is on. BGE 1.5 rectifier causes brake coil to burn BGE 1.5 rectifier causes brake coil to burn beta8 (Electrical) (OP) 29 Nov 11 03:20. Snowmobile stators fail for a variety of reasons, the most common being overheating, the failure of the regulator-rectifier, and corroded, shorted or damaged wiring harness and/or connectors. Hi peeps just looking for some advice really. That only lasted a week and it had burnt out again. What could cause the voltage regulator rectifier to keep going out, I have put 3 on in 2 years and I don't ride - Answered by a verified Motorcycle Mechanic We use cookies to give you the best possible experience on our website. Read about each of these below for more information. 2) Power Supply Design fault. I think the stator is fine becuase I replaced it about 9 months ago. Things that can affect spark-faulty worn spark plugs-faulty plug caps First, unplug the stator connector. Stator > Rectifier > Battery). Installed it yesterday and all seems fine. A shorted cap can take out the power transformer and cause the same symptoms of no sound, but since the filament wind is usually in series with the high voltage wind. Hey, I have wanted to get off the grid for the past 20 years girl! It may fail either way. If you bike has a permanent magnet, then that's certainly not the problem. Capacitors “blow” due to overheating which causes high internal gas pressure inside the capacitor case. The result is a DC voltage because the current can now flow in only one direction through a hypothetical load (not … The voltage is then regulated; the voltage being limited to a maximum of about 14.5 volts and feeds this regulated DC out to the battery. 3) Low quality of the transformer used (1) The lead-out of the transformer is a copper screw, and overhead lines are generally more aluminum core rubber line, so in the air between the copper and aluminum is very prone to electrochemical corrosion, under the action of ionization, forming an oxide film between the copper and aluminum , So that the contact resistance increases, the lead screw, nut and lead burned or fused together. An unregulated alternator will run unlimited voltage until they burn themselves out without control from the regulator, so you could easily hit 90+ volts and still know nothing, but you sure could make a parts dealer happy as they sell you replacements for what you fry. But will not allow currrent to flow in the opposite direction. If your lights work then the reg rectifier ist afffecting the battery to prevent spark. The Regulated Rectifier has new technology … There are several conditions which can result in excess heat. Regulated Rectifier: A component that converts AC voltage to DC voltage AND regulates (maintains) the DC voltage to 14.4 volts. So if your store has a bench tester, make sure to use it. Close. In other words, there is approximately 15 volts across a section that is designed to have only 7.5 volts. Capacitors, mentioned by Vulcan in #5 cause the input voltage to be as much as 10-20% higher, so the rectifier front end exceeds its rated voltage and the DC bus can also exceed its ratings (causing the drive to fault if not burn out). Jump to Latest Follow ... at regulator to ground and a bad stator are the most common causes of the rectifier section of the rec/reg burning out - a rectifier made of inferior components is also a common cause of failure. Power tubes usually wear out quicker than preamp tubes but as they say, "tubular morghulis," "all tubes must die." Today I installed my third rectifier and also checked all of the electrical connections that I could find. Causes of Failure When there is a defective connection between the battery and the alternator, charging current will be forced to find an alternate route to flow out toward the battery. Rectifier. During my wait for the new rectifier, I went thru the parts and pieces for the old charge controller that came with the wind generator and found what looks like a bridge rectifier. Any capacitor can fail due to over-voltage. Having filaments lit is a good sign the transformer is still good so check your power caps, fuses and replace the Rectifier tube. Hope this helps. I tried putting this in another thread but it wasn't getting any hits. Everything I purchased was brand new, so I was wondering if someone could help me find out the problem. You name it and a bad tube can cause it. In many cases, I’ve found that small signal diodes tend to fail open, and power diodes tend to fail short.