I know because I had multiple computers in there that were off for several minutes(fully booted back up in 14 minutes), but the computer in my bedroom did not shut off. Another, more direct symptom of a bad fuse is a blown fuse. If an intermittent causes a fuse to fail, replacing the fuse wont fix the problem. My Car AC Sometimes Works Sometimes It Doesn't: Why and How to Fix Ohmmeters are great for measuring circuit resistance, but you have to use care when checking electronic components. By clicking Accept All Cookies, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. 4 Symptoms Of A Bad Starter Relay And Replacement Cost - Mechanic Base Bad Door Lock Actuator Symptoms: 4 Signs to Watch Out For if your blower is working but keeps cutting out then there are more chances of a faulty blower. Thanks for contributing an answer to Home Improvement Stack Exchange! It's not a good idea to run the AC if the low speed fan is out. Fast, free online quotes for your car repair. In plastic-bodied cars, a separate ground wire is needed to link the load to the chassis. 404K views 4 years ago Finding the source of a dead short that keeps blowing fuses can often be a real headache. Why Car Blower Motor Works Intermittently?(Causes and Fix) - MotorAudit It does not restart unless the battery is allowed to drain completely and then jump start. Another quick check is to remove and shake the relay. To check wiring continuity, youll need an ohmmeter, DVOM or self-powered test light. The attached photo is of a 3.15A fuse from a Cerbo GX power supply wire, and it has "half-blown", and what I mean by that is: under 0A load, the fuse will pass full vbatt (13.6v in this case), with no voltage drop (at least, none within a hundredth of a volt). Fuel Pump Relay Replacement cost Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? What Is A Car Fuse And How Does It Work? - Carorbis.com LEARN MORE. As pointed out earlier, the fuel pump relay directs current to the fuel pump. How to Market Your Business with Webinars? 2. Loose or corroded battery cables and ground straps are a common cause of voltage-related problems. Christine Baker is a marketing consultant with experience working for a variety of clients. When a car stereo only works sometimes, there are two main types of faults that can be in play. Recovering from a blunder I made while emailing a professor. Intermittent electrical issues can be frustrating and difficult to diagnose because they don't always happen consistently. There may be one or two power relays that could be suspect. Yes! Ohmmeters cant handle normal battery voltage, and should you accidentally complete a circuit through the meter, you may damage your meter. Period. While most fuses should last a long time as long as the vehicles electrical system is operating correctly, over time electrical systems and components can develop issues that cause fuses to blow.

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