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For a switch the reading should be in the zero ohm range. Corrosion or pitted contacts will start to raise the resistance rating on a switch. This size of rating on the switch will start to raise the temperature of the switch because the switch starts to act like a load in the circuit.
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What is the standard reading in megger testing to conclude that the equipment is passed and or failed?
Meggers send voltage thru the cables to determine the resistance between, meggers like the mj145 have multiple settings from 100 volts to 1000v, a Megger showing a good reading will show megaohms thru its full band, a bad one reading will be indicated by it either reading 0 ohms or less then 30 ohms (depends on the circuit and what's between the wires) a bad indicator can also be a steady reading at low voltage then at higher voltage it spikes to a low ohm, or a low voltage, like as if u just created a short. What that shows is at low voltage your insulator is fine, but at high voltage it blows thru it, normally that means your Insolator around your wire is damaged.
Feed drops to zero volts when light switch is turned on back to 120 volts when turned off feeds fluorescent lights?
voltage is measured by voltagd drops. When a switch is open/ off there is a voltage difference between one side to the other. when the switch is on there is no drop from one side of the switch to the other. That is normal operation. If switch is on, and you get a voltage reading across the switch, the switch is bad.
What should a bad motor read in ohms if it is bad?
If an Alternating Current (a/c) motor is bad. The resistance will read very hi as in an open winding. ie: meg ohms Or very low as in a shorted winding. ie: 0.01 ohms It must not read any resistance to the housing or shaft. The resistance between leads should be a reasonable value and can be determined with : electromotive force divided by inductance equals resistance. example: 215 volt alternating current with name plate full load amperes of 10 should read very near 21.5 ohms resistance between leads.
Will bad diodes work?
A failed diode electrically resembles a switch. Whether it resembles an open switch or a closed one depends on the specific mode in which it failed. But a bad diode won't behave like a diode any more.
Light not going when switching off?
if light is not going off, bad switch or short in wiring to light!!
How do you know if you have a bad cable when checking ohms?
If the ohms are infinite or greater than one megohm you can conclude the cable is bad. Usually if the ohms are greater than 3 ohms the cable is bad. If the cable is less than 3 ohms it depends on what the cable is used for and how long it is.
How do you find which one is the bad fuel injector in 1989 corvette?
LOW OHM READING - MEANS BAD INJECTOR COIL ECM FIRES FOUR AT A TIME ON 89'S IN LINE 14 -16 OHMS IS NORMAL LOWER OHMS RAISES AMPS BEYOND ECM CAPACITY AND ALL FOUR CAN MISFIRE
Is 8 ohms good or bad resistance?
For an 8 ohm speaker, 8 ohms is perfect. "Good" and "bad" are relative to the application.
How do you know that the sensor is bad?
Find out the ohms range it must be within and do an ohms test.
How do you test a brake light switch?
You will need a small electrical multi-tester to test the switch. Set the tester to "ohms". Disconnect the wiring from the switch. Touch one of the tester leads to one side of the switch and the other lead to the other side. Your reading should be zero. Have a friend depress the brake pedal, and the needle on the meter should swing left to right. If the needle does not swing then the switch is bad. If it swings then the problem is elsewhere in the wiring. The multi-tester can be found at hardware stores, auto parts stores and department stores.
Why your cruise control don't work on a 1998 peterbilt?
Bad switch, bad wiring, ECM fault. If your jake brakes still work, you can rule out the accelerator position switch. The brake position switch might be reading that the brake is depressed when it isn't.
Can a bad engine oil pressure switch make your car run bad?
No, if the oil pressure switch is bad it will just give you a false reading of your oil pressure.
Oil pressure is reading high on corvette but oil is at correct level. Does this indicate a bad sensor switch?
High oil pressure is good....
Will a bad oil pressure switch cause high oil pressure in a 91 jeep warngler?
It could cause a high reading on the gauge.
How can you tell you have a bad coil on a 1968 Mustang?
Test it Primary resistance 1.40 to 1.54 ohms secondary resistance 7600-8800 ohms primary circuit resistor 1.30 to 1.40 ohms
Your 1990 lumina 31L Starts on starting fluid runs and starts fine for a few days then have to use strt fluid again ign mdl and coils checked ok?
the problem may be your fuel injectors.take a test meter and set it on ohms and test each injector . a good reading should be between 11 and 14 ohms.usaully around 12.5 ohms but check your haynes manual for test readings.any injector below 12 ohms is probably bad and needs replaced.there could also be cloged injectors so try running fuel injector cleaner threw it .hope this helps had the same problem on 88 beretta.turned out to be a bad injector with a reading at 2 ohms on the one which indiacates shorted injector.replaced them works fine
How do you know when a starter fuse is bad?
Use a multimeter to check if the fuse is still conducting current. Set the multimeter to read Ohms and place one lead on one end of the fuse. Put the other lead on the other side and see if there is a reading. If there is, the fuse is whole. If there is no reading, the fuse is blown.
