X Expert Source Duston MaynesĪutomotive Repair Specialist Expert Interview. It depends on the type of motor you're testing, but most motors will have little resistance.Occasionally, values as low as several hundred thousand ohms (500,000 or so), *may* be acceptable, but a higher number is more desirable. It may move a fair amount, but the meter should always indicate a resistance value in the millions of ohms (or "megohms").Make sure your hands are not touching the metal probe tips, as doing so will cause the reading to be inaccurate. Ideally, the meter should barely move off the highest resistance indication. Locate a ground screw (often a green, hex head type) or any metal part of the frame (scrape away paint if needed to make good contact with metal) and press a test probe to this spot and the other test probe to each of the motor leads, one at a time.
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(Check the meter's operation manual if necessary) Choose the highest scale (R X 1000 or similar) and zero the meter by touching both probes against each other. With an ohmmeter set to the Resistance or Ohms test setting, place test probes into the appropriate jacks, usually the "Common" and "Ohms" jacks. Use an ohmmeter to check resistance value. This article has been viewed 1,216,976 times. This article received 12 testimonials and 89% of readers who voted found it helpful, earning it our reader-approved status. WikiHow marks an article as reader-approved once it receives enough positive feedback.
There are 12 references cited in this article, which can be found at the bottom of the page. It has a single cage rotor and its stator has two windings known as main & starting. RepairSmith offers in-home services to provide car owners convenient and complete auto repair everywhere. The Split Phase Motor is also known as a Resistance Start Motor. RepairSmith was also included in Built in LA’s 50 Startups to Watch and The Business Intelligence Group’s 52 Names Leading the Way in Customer Service. RepairSmith received The 2020 Big Innovation Award by Business Intelligence Group and The Startup of the Year by the American Business Awards. Duston holds an Associate’s degree in Automotive/Diesel Technology from The Universal Technical Institute of Arizona and is a Certified Diagnostic Technician and Automobile Mechanics Technician through BMW STEP.
Duston specializes in leading a team that handles a variety of automotive repairs including replacing spark plugs, front and rear brake pads, fuel pumps, car batteries, alternators, timing belts, and starter motors. Duston Maynes is an Automotive Repair Specialist at RepairSmith. This article was co-authored by Duston Maynes.
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