I'm trying to figure out why my moms heater in her Contour is not working, I took the blower motor out completely and tested it off the battery and it works, and I replaced the Blower Motor resistor and it still dont work, I'm guessing there is either a wiring problem or a switch.
@richpin06a I'm not sure, The last time I tried to check it with the multimeter I wasn't getting a reading, but I may not have had a good connection with the multimeter (using the multimeter probes on flat prongs is a pain), I was going to try to test it again today, but my sister had an appointment and borrowed her car, so I have to wait till afterwards.
I guess if I don't get a reading at the blowers connector it would either be hot or ground one that's not completing the circuit.
@richpin06a Would it matter that it was on 10A setting? I know that's amperage, but if there was no amperage reading, wouldn't that tell me there is no voltage anyway? I didn't get to test it on the 20 DCV
@richpin06a Ok, I tried the meter set to 20 DCV and it read 12.15V, I switched it back to 10A and changed the red probe end to the Amperage gauge and it still shows no amperage, but apparently it does have voltage! I know the blower is good, could it be a bad connection between the connector and the prongs on the blower motor?
@richpin06a I tried a homemade jumper to make sure the connection was good from the connector to the fan prongs, never got it to come on, I also bought a ac/blower switch and replaced that, and today bought a new relay (the old one had a prong that looked like it got hot before so I figured it may have went bad) and it still does not blow. Whats the switch in the center called? The one that controls gates and defrost ect...
@richpin06a Thanks for the reply. The blower motor in my 1977 GP only works on high-new resistor didnt help. On high it seems to put a heavy load on the system-lights dim and slow blinkers particularly at idle. Is it possible there is excessive draw from this and how can I test if no lower speeds and the meter maxes out at 10amps on high? Thanks for the communication! All other components test good.
@widtrak77 Thanks for the reply. The blower motor in my 1977 GP only works on high-new resistor didnt help. On high it seems to put a heavy load on the system-lights dim and slow blinkers particularly at idle. Is it possible there is excessive draw from this and how can I test if no lower speeds and the meter maxes out at 10amps on high? Thanks for the communication! All other components test good.
113 WATTS WITH A TOTAL INTERNAL RSISTANCE OF 1.137 OHMS. HOW MANY RPMs DOES THE MOTOR RUN ON HIGH? ANYWAY I WAS VERY HAPPY TO SEE YOUR CHANNEL FOR THE FIRST TIME, ALTHOUGH I WAS SHOCKED REALIZE I HAVE NEVER BEEN HERE BEFORE. I JUST THOUGHT ABOUT YOU AND FIGURED I WOULD CHECK ON YOU. KB5ETP. I HAVENT VISITED MY OTHER CHANNEL FOR A LONG TIME.
AND I AM GLAD TO SEE THAT YOUR VIDEO HAS 25000+ VIEWS.
My car does not have any air blowing at all so I am told it is the blower motor or the relay. I checked the relays under the hood which appear to be like little cubes (same numbers and all) my question to you is this.
Is there anyway to test the blower motor without unbolting it from its place in the car (I have a grand prix 2004)
I'm trying to figure out why my moms heater in her Contour is not working, I took the blower motor out completely and tested it off the battery and it works, and I replaced the Blower Motor resistor and it still dont work, I'm guessing there is either a wiring problem or a switch.
mattcasdorph 2 months ago
@mattcasdorph Do you have ground and voltage at that the blower connector.
richpin06a 2 months ago
@richpin06a I'm not sure, The last time I tried to check it with the multimeter I wasn't getting a reading, but I may not have had a good connection with the multimeter (using the multimeter probes on flat prongs is a pain), I was going to try to test it again today, but my sister had an appointment and borrowed her car, so I have to wait till afterwards.
I guess if I don't get a reading at the blowers connector it would either be hot or ground one that's not completing the circuit.
mattcasdorph 2 months ago
@richpin06a Just checked it, doesn't look like it does.
mattcasdorph 2 months ago
@mattcasdorph No voltage
richpin06a 2 months ago
@richpin06a the meter on 10A DC setting is not showing anything
mattcasdorph 2 months ago
@mattcasdorph To check that connector your meter needs to be on the V DC 20 scale and the lead from the meter needs to be in the V plug.
richpin06a 2 months ago
@richpin06a Would it matter that it was on 10A setting? I know that's amperage, but if there was no amperage reading, wouldn't that tell me there is no voltage anyway? I didn't get to test it on the 20 DCV
mattcasdorph 2 months ago
@mattcasdorph As long as the motor is ok no amperage reading should mean no voltage at the connector.
richpin06a 2 months ago
@richpin06a Ok, I tried the meter set to 20 DCV and it read 12.15V, I switched it back to 10A and changed the red probe end to the Amperage gauge and it still shows no amperage, but apparently it does have voltage! I know the blower is good, could it be a bad connection between the connector and the prongs on the blower motor?
mattcasdorph 2 months ago
@mattcasdorph If the ground is good at the connector that would leave just the connection between the connector and motor as a possible problem.
richpin06a 2 months ago
@richpin06a thanks for the help, I'll check it out again in the morning and update you
mattcasdorph 2 months ago
@richpin06a I tried a homemade jumper to make sure the connection was good from the connector to the fan prongs, never got it to come on, I also bought a ac/blower switch and replaced that, and today bought a new relay (the old one had a prong that looked like it got hot before so I figured it may have went bad) and it still does not blow. Whats the switch in the center called? The one that controls gates and defrost ect...
mattcasdorph 1 month ago
@mattcasdorph You said you had voltage at the connector so if the connection is good it is a ground or motor problem.
richpin06a 1 month ago
@richpin06a I know the motors good, how would I check the ground?
mattcasdorph 1 month ago
@mattcasdorph If you can get at the metal housing of the motor you can check ground there or at the motor electrical connector.
richpin06a 1 month ago
Couldnt you just connect the multimeter directly to the electrical connector, and if its getting sufficient power, you know the motor is dead?
skyzophrenyk 4 months ago
@skyzophrenyk Yes you can.
richpin06a 4 months ago
What should the parameters be for voltage and amperage. You never mention it!
widtrak77 7 months ago
@widtrak77 These are the correct figures for a normal operating blower motor.
richpin06a 7 months ago
@richpin06a Thanks for the reply. The blower motor in my 1977 GP only works on high-new resistor didnt help. On high it seems to put a heavy load on the system-lights dim and slow blinkers particularly at idle. Is it possible there is excessive draw from this and how can I test if no lower speeds and the meter maxes out at 10amps on high? Thanks for the communication! All other components test good.
widtrak77 7 months ago
@widtrak77 Thanks for the reply. The blower motor in my 1977 GP only works on high-new resistor didnt help. On high it seems to put a heavy load on the system-lights dim and slow blinkers particularly at idle. Is it possible there is excessive draw from this and how can I test if no lower speeds and the meter maxes out at 10amps on high? Thanks for the communication! All other components test good.
widtrak77 2 weeks ago
widtrak77 7 months ago
113 WATTS WITH A TOTAL INTERNAL RSISTANCE OF 1.137 OHMS. HOW MANY RPMs DOES THE MOTOR RUN ON HIGH? ANYWAY I WAS VERY HAPPY TO SEE YOUR CHANNEL FOR THE FIRST TIME, ALTHOUGH I WAS SHOCKED REALIZE I HAVE NEVER BEEN HERE BEFORE. I JUST THOUGHT ABOUT YOU AND FIGURED I WOULD CHECK ON YOU. KB5ETP. I HAVENT VISITED MY OTHER CHANNEL FOR A LONG TIME.
AND I AM GLAD TO SEE THAT YOUR VIDEO HAS 25000+ VIEWS.
MUDDy
kb5etp 9 months ago
thanks
MrKhalio 11 months ago
Is it more accurate to check blower motor amperage draw with or without the engine running?
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violafinishda 1 year ago
its the blower motor resistor. all wires are burned in half.
farley647 1 year ago
If the motor is on the way out, what type of readings would you be getting?
Thanks much for the video.
mtriv111 2 years ago 2
What fuse is that? 5 amps?
RC60618 3 years ago
20 amps
richpin06a 3 years ago
My car does not have any air blowing at all so I am told it is the blower motor or the relay. I checked the relays under the hood which appear to be like little cubes (same numbers and all) my question to you is this.
Is there anyway to test the blower motor without unbolting it from its place in the car (I have a grand prix 2004)
Warm Regards,
William
wharrison78 2 years ago
Probe the electrical connector from the motor with a multimeter to see if you have ground voltage.
richpin06a 2 years ago