| Electronics > Beginners |
| Testing heating element |
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| manubali:
Hi, i am trying to repair dry herb vaporizer for my friend. I suspect its heating element is faulty as It works fine when element is disconnected and didn't work when its connected. I tried to measure resistance between its terminals and it shows 0 ohms. Is there any other way to test it? Element is connected to drain terminal of p cahnnel mosfet and element, drain side of mosfet are shorted to ground. |
| james_s:
What voltage does it run from? If it's low voltage then it may read zero ohms on a multimeter that doesn't have a low ohms range. A heating element is nothing more than a resistor, the typical failure mode is they burn out and go open circuit. What do you mean by "doesn't work"? Does it blow the fuse? Shut off? |
| manubali:
It runs with single 18650 battery around 3.7 volts. It shuts off after few seconds when power button is pressed. It was dropped and it stopped |
| DTJ:
A dry herb vaporizer running of a 18650? Is it like an electronic bong? |
| james_s:
For such a low voltage I would expect the heating element resistance to read close to zero. Are you sure it's not just a dead battery? Is the charging circuit actually charging it? |
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