For those that insist on a DVM is good way of testing it is GREAT for reading VOLTAGE drops but for this test & others that u MUST put a load on use a light or resistor, I have chased elusive problems before because I didn't have the circuit LOADED heavy enought. Using a test lite is way better for this than a DVM unless you load the circuit with a resistor. WAY Cool test, you can also us a scope with a clamp on amp probe and look at the windings too. I like the headlite idea too.
That can work too, but isn't as accurate. Anything to measure the continuity.. but... a meter doesn't load the circuit like a test light does, and a load is what's important. That's why, when I'm measuring a load carrying circuit I use a light bulb. In factory schools nowadays technicians are encouraged NOT to use a meter when measuring any circuit that carries a load. Factory instructors are saying to use a headlight bulb (which pulls about 5 amps). A DVOM can lie. The bulb won't.
what i did was use a DVM and place the line on each wire ( + - )of the motor and place the meter on diode test and if got sound from the meter i knew some where the wires were making contact somewhere in the fan motor.
For those that insist on a DVM is good way of testing it is GREAT for reading VOLTAGE drops but for this test & others that u MUST put a load on use a light or resistor, I have chased elusive problems before because I didn't have the circuit LOADED heavy enought. Using a test lite is way better for this than a DVM unless you load the circuit with a resistor. WAY Cool test, you can also us a scope with a clamp on amp probe and look at the windings too. I like the headlite idea too.
ab0ad 1 year ago
good test.....simple
Autotech9999 1 year ago
That can work too, but isn't as accurate. Anything to measure the continuity.. but... a meter doesn't load the circuit like a test light does, and a load is what's important. That's why, when I'm measuring a load carrying circuit I use a light bulb. In factory schools nowadays technicians are encouraged NOT to use a meter when measuring any circuit that carries a load. Factory instructors are saying to use a headlight bulb (which pulls about 5 amps). A DVOM can lie. The bulb won't.
McCuistian 1 year ago
what i did was use a DVM and place the line on each wire ( + - )of the motor and place the meter on diode test and if got sound from the meter i knew some where the wires were making contact somewhere in the fan motor.
xmanmta 1 year ago
thanks for this post. I never would have thought of that-
so cool! dang; now i know if i have a intermitant cooling problem
i will do this test; thanks again
Chevenitsu 1 year ago
Have you ever experienced a malfunction with a Zirgo fan?
They seem to be powerful enough for the job.
seapeddler 1 year ago
Thanks very much for a well explained test. I enloyed the music too. Regards from North Wales, Wales , UK.
flyerphil 2 years ago