Re: Hot wires powering blower motor

"Pszemol" <Pszemol@xxxxxxxxxx> writes in article <de1nu4.68k.0@xxxxxxxxxxxxxx> dated Thu, 18 Aug 2005 10:29:21 -0500:
>Nissan sentra 1994. Just replaced melted blower motor speed control switch.
>The maximum speed switch setting contacts were melted into the plastic
>switch enclosure. After replacing the switch the wires coming into the
>switch and going out to the motor are very hot, burning my fingers...
>I have checked the motor, it draws about 15Amps from battery when engine
>is not moving (12V). It could be not accurate measurement since I lost
>some power on multimeter probe contacts at such high currents...
>
>Is this a normal current draw for the blower motor in a small car like sentra?
>What can I do about overheating wires ? The wires do not look thick enough
>for 15A currents running through them. Also, the socket/plug for the motor
>speed switch contains regular-looking quickconnects, is it possible to
>disassemble the switch receptacle and replace/rework new quickconnects ?

15A is too high. My guess would be 1A on the maximum setting.
Try replacing the blower motor.

-- spud_demon -at- thundermaker.net
The above may not (yet) represent the opinions of my employer.
.

Relevant Pages

  • Re: electric motor forward/reverse wiring?
    ... Started the motor and started up, ... Probed teh wires ... breaker each time i flipped the drum switch. ... the capacitor have slipped off their terminals under the bulge. ...
    (rec.crafts.metalworking)
  • Re: electric motor forward/reverse wiring?
    ... as it leaves parts of the motor floating high. ... after battling the available switch sections in the drum switch. ... need more wires between switch and motor, ...
    (rec.crafts.metalworking)
  • Re: Please Help Me Wire A Reversing Switch
    ... which you've transferred the Y and B wires, ... anything else in the motor (like the starter switch). ... recognise that I have to put the main live through this reversing ...
    (uk.rec.models.engineering)
  • Re: Merc 40 tilt
    ... The only thing there is the switch. ... I found the units on ebay for about $659 vs over $900 from the ... If you can't hear anything from the motor, find the lead wires that should ...
    (rec.boats)
  • Re: Merc 40 tilt
    ... Can you hear the motor run when the switch is pushed? ... I found the units on ebay for about $659 vs over $900 from the dealer. ... If you can't hear anything from the motor, find the lead wires that should ...
    (rec.boats)