You set your ESI probe to the 20 amp AC setting. Should've used the 20 amp DC setting for an accurate reading. 14.9 amps isn't "way too many amps" for that fan motor. The reading, even when taken properly, is also dependent upon available voltage.
i dont get it , whats the difference between the new fan and old, if the old on was still working, i dont see why it would cause it to overheat, maybe lower amps- less rpms but i dont think that would cause the engine to overheat
Hi Duane, great job in diagnosis, it's mazing what great tools can achieve. Noticed the amperage thing, too. The new one actually drew more; poor design of new motor?? Your circuit breaker probably tripped because of a non-DC pattern waveform; not excessive current. What is the fuse rating on circuit to the fan? What is the wattage of the fan? It should be 210W or thereabouts, no more. If it's rated at 150W the new fan is overdrawing. Good luck.
Dwayne, you said the old motor was pulling too many amps at 14.*, the new fan pulls 15.* plus. Could you explain maybe I mis understood. Great vid thanks.
GOOD video that will help me for tomorrow i have a jaguar with a intermittent radiator fan problem. i never try to scope a fan before...and one question what do u think about the new snap on scanner that is wireless? good video and thanks
Its all about having great tools & knowing how to use them. Thanks for another great vid.
bgregg55 3 months ago
You set your ESI probe to the 20 amp AC setting. Should've used the 20 amp DC setting for an accurate reading. 14.9 amps isn't "way too many amps" for that fan motor. The reading, even when taken properly, is also dependent upon available voltage.
qloopp 5 months ago
i dont get it , whats the difference between the new fan and old, if the old on was still working, i dont see why it would cause it to overheat, maybe lower amps- less rpms but i dont think that would cause the engine to overheat
drotimes4 10 months ago
interesting the use of the scope for coolng fans but, want it drawing the same amount of amps??
xxioryyagamixx 10 months ago
Hi Duane, great job in diagnosis, it's mazing what great tools can achieve. Noticed the amperage thing, too. The new one actually drew more; poor design of new motor?? Your circuit breaker probably tripped because of a non-DC pattern waveform; not excessive current. What is the fuse rating on circuit to the fan? What is the wattage of the fan? It should be 210W or thereabouts, no more. If it's rated at 150W the new fan is overdrawing. Good luck.
precopster1 1 year ago
I noticed that as well. Still pulling 15 amps?
midlantic1 1 year ago
Just so everyone knows, his name is Duane.
Good video by the way.
sdeery 1 year ago
This has been flagged as spam show
power probe can only hold 15 amps for 6 sec.
8 amps there is not trip
10 amp for 20 min.
25 amps for 2 sec.
and short circuit for 0.3 sec.
CRISTIAN123JOSE 1 year ago
Comment removed
CRISTIAN123JOSE 1 year ago
Comment removed
CRISTIAN123JOSE 1 year ago
Comment removed
CRISTIAN123JOSE 1 year ago
Comment removed
CRISTIAN123JOSE 1 year ago
Comment removed
CRISTIAN123JOSE 1 year ago
it wasn't abut the amps it was about the the way the bad waveform and new waveform look how different it look
CRISTIAN123JOSE 1 year ago
Dwayne, you said the old motor was pulling too many amps at 14.*, the new fan pulls 15.* plus. Could you explain maybe I mis understood. Great vid thanks.
studpuppy69 1 year ago 7
Wayne, you da man. Waveform looked good, but the new motor pulled about the same amps as the bad motor.
CoolasIce2 1 year ago
GOOD video that will help me for tomorrow i have a jaguar with a intermittent radiator fan problem. i never try to scope a fan before...and one question what do u think about the new snap on scanner that is wireless? good video and thanks
CRISTIAN123JOSE 1 year ago