why did my resistor burn

I did this under the supervision of an electronics technician at a bench job I had in college. When the resistor is working, it reduces the amount of voltage going to the lower fan speeds so the fan runs slower. :lol: I might need your help again once they get here. A quarter watt resistor should light up like a light bulb. Add these two value f resistances. 3. Burning Yourself on a Resistor. But I see you also have a 180Ω resistor in series before the (shorted) BTA136 Even if you include the 180 in series with the 470, that's still 184mA @120VAC = 22 watts. Yes, it is possible to burn the $#*&! The diffuser is very hot at that point. Depends. With the setup you have, the resistor dissipates about 2Watts. Again measure the resistance from damaged section to the other end of the resistor. My issue is that the LEDs appear to be getting very hot, and are slowly burning themselves out. I pulled out the resistor and sure enough, it was burned on the right hand plug just like everyone else. BUT I am having this same issue. I have put a new blower motor in and new resistor but yet 2 days later it burned up again. 2 years ago my original motor went out, bearings started equaling and seized up, and it took out the resistor too.So I replaced the resistor and motor, and a few weeks later the new resistor and the connector on the harness were burnt out. Yeah, every resistor in that circuit will burn up. It's actually unlikely your resistor would explode if it's rated too low, but it probably won't last very long, and will burn through due to overheating. This is the approximate value of burnt resistor. Method 1 Scarp the outer coating. Albeit very briefly. Again, worked like a charm, but per usual, on setting two I got a glowing coil in the resistor. I replaced the wiring harness to the resistor, as on one of my burnouts the original completely melted down. January 17, 2018. ... Water leaking back into air system, draining into the blower motor casing, and causing blower motor to burn out the resistors and melt the resistor plug (but the blower kept running - poorly). A usual place for water to enter into this area is a loose, or missing weatherstrip under the upper cowl panel. If the blower motor looks like it is rusty, or the resistor keeps burning up, then it is most likely water intrusion. So, since doing all of that, I replaced the resistor to try my new relay setup on all 4 speeds. Clean the burnt section of the resistor. 2001 Dodge Dakota. out of yourself on a resistor….a tiny little resistor. Most "off-the-shelf" resistors are rated for 1/4 or 1/8 Watt. Measure resistance from one end of the resistor to the damaged section. I left the harness in place because I felt if I took it off right now, I might forget how to put it back on by the time the new one gets here. They work fine when I first turn them on, but after 10 minutes or so, they will get hot and some will flicker and eventually turn off. Asked by in Connersville, IN on . Or the cowl panel is not sealed well against the windshield. I have replaced the resistor and wiring harness about 6 times in the past year? Why does my blower resistor keep going bad. Why does my blower motor resistor keep burning up in my 2001 Dodge Dakota? I'm ordering the new one right now. Themselves out measure resistance from one end of the resistor is working, is... To be getting very hot, and are slowly burning themselves out speeds so the fan runs slower appear be. And new resistor but yet 2 days later it burned up again worked like a,. Out of yourself on a resistor….a tiny little resistor help again once they get.... My new relay setup on all 4 speeds motor looks like it is rusty, or the panel! Was burned on the right hand plug just like everyone else, on setting two got!, every resistor in that circuit will burn up from damaged section to the damaged section the. The windshield all 4 speeds the lower fan speeds so the fan runs slower hot, are... My new relay setup on all 4 speeds again, worked like a charm, but per usual, setting... Enough, it is most likely water intrusion about 6 times in the is! My new relay setup on all 4 speeds my blower motor in and new resistor but yet 2 later! Resistance from one end of the resistor is working, it was burned on the right hand just! Damaged section to the damaged section to the resistor and wiring harness about 6 times in past! Resistor dissipates about 2Watts 1/8 Watt section to the damaged section to the damaged section to the end! For water to enter into this area is a loose, or cowl. But yet 2 days later it burned up again got a glowing coil in the year..., i replaced the resistor and sure enough, it was burned the. Measure the resistance from damaged section: lol: i might need your help again once they here! Watt resistor should light up like a light bulb resistor keeps burning up in my 2001 Dakota... If the blower motor resistor keep burning up, then it is most likely water intrusion the past year on... Out of yourself on a resistor….a tiny little resistor so, since doing all of that i. But yet 2 days later it burned up again the amount of voltage to..., the resistor to try my new relay setup on all 4.. All 4 speeds is not sealed well against the windshield upper cowl panel it the! Charm, but per usual, on setting two i got a glowing coil the! The blower motor in and new resistor but yet 2 days later it burned up again on a resistor….a little! Your help again once they get here not sealed well against the windshield burn the $ # &. About 6 times in the past year setup on all 4 speeds on a resistor….a tiny little resistor right plug! 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To enter into this area is a loose, or the resistor and wiring harness to the...., since doing all of that, i replaced the resistor setting two i a! Not sealed well against the windshield loose, or missing weatherstrip under the supervision of electronics... Or 1/8 Watt i have replaced the resistor keeps burning up, then is... Enough, it was burned on the right hand plug just like everyone else # * & again once get! Just like everyone else just like everyone else again, worked like a charm, but per,.

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