What should the voltage of a voltage regulator be?
Voltage Regulator Test Charging voltage can vary between 13.5 and 14.8 volts, depending on ambient temperature. In a nice, 70 F (21 C) day, you can expect a voltage regulator charging your car’s battery at about 14.2 volts. And the higher the temperature, the lower the charging voltage.
Can a bad voltage regulator be a good thing?
When your test shows a steady or intermittent high or low voltage output, the voltage regulator is possibly bad. Most voltage regulators fail by allowing a high voltage output, though. However, before going any further, check that all the connections to the alternator and battery are good and clean as described in the next section. 1.
Where can I find a voltage regulator for my car?
There are 14 references cited in this article, which can be found at the bottom of the page. Voltage regulators are commonly found in vehicles and other electronic equipment. A voltage regulator will limit the maximum amount of voltage from a power source and prevents a device or alternator from shorting and overheating.
How to know if your alternator voltage regulator is faulty?
1 When the voltage regulator is bypassed, you should see maximum voltage output. 2 If voltage output remains at a normal level, most likely the voltage regulator is faulty. 3 If voltage output remains at the same level (low, for example) as in your initial test (Section II, step 6), most likely you have a faulty alternator.
How to test voltage regulator output on lawn mower?
Try running a temporary wire 16 gauge or larger from the B+ terminal to the positive post of the battery and see what what voltage you get when testing the charge at the battery terminals. Test results show that the regulator is grounded but you are not getting power from the battery to the B+ terminal of the regulator therefore it won’t charge.
What can cause a regulator rectifier to fail?
When it overheats, the component could fail fast. Other common causes for regulator rectifier failure involve the battery. To have voltage, the battery needs to have a reliable ground connection. If the link is bad and the voltage is faulty, this can cause the regulator rectifier to run hotter than usual.
Where is the regulator located on a motorcycle?
In most motorcycles, the regulator and rectifier are located together in the same unit, but other older models have them installed separately. Here’s what you need to do to test your rectifier for failure: