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Fan doesnt blow
Topic Started: Sep 4 2015, 05:47 PM (1,607 Views)
myredvert
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myredvert

Quote:
 
Maybe the fan resistors? :hmm
You can always try the "tie wrap trick" first and if that doesn't work, go back in and try replacing it or the resistor, and if that doesn't work because the problem was in the "other" component or the wiring circuit go back in again and use the applicable FSM diagnostic procedure to identify the problem in either the resistor or the switch or the wiring then fix what's broken...

Or, you could just use the FSM diagnostic procedure first to identify whatever is not working normally and fix it.

If it is the switch, you still have the option of using the tie wrap "fix" to see if it takes care of it, which it often does when the switch is actually the component with the problem.

Geo Metro Forum → The Garage → Factory Repair Manuals/Wiring Diagrams → 1994 library

Section 8A-60, Electrical Diagnosis - Heater
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HelterSkelter
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#1 Pizza Driver

Woodie
Sep 5 2015, 06:11 AM
Wrap a wire tie around the switch.


did that a long time ago :} it was pooped out the day i bought it.

snowfish
Sep 5 2015, 10:33 AM
Maybe the fan resistors? :hmm

Posted Image

Posted Image

If your fan previously had only one speed, the final resistor gave up the ghost. :stoner



it didn't have a lot of speeds, i only really had 2-3. i was going to check that next. where exactly is that located? with all the trash in the passenger well i didn't have time to poke around down there today.

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HelterSkelter
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#1 Pizza Driver

also, on a related note, there are a bunch of leaves and bug parts stuck in the system that get blown out through the vents frequently. where would i need to dig around to clear that out?
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myredvert
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myredvert

Quote:
 
it didn't have a lot of speeds, i only really had 2-3. i was going to check that next. where exactly is that located?
(link>>) Geo Metro Forum → The Garage → Factory Repair Manuals/Wiring Diagrams → 1994 library

Section 1A, Heater and Ventilation (blower motor resister page 1A-6)
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Metromightymouse
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Powdercoat Wizard

mt999999
Sep 4 2015, 10:15 PM
Don't mean to "thread jack", but can you buy new replacement switches for the fan speed? Mine doesn't do anything on the first speed, and works intermittently on the next speed up; I sometimes have to wiggle it. The highest speeds seem to work fine.


Woodie
Sep 5 2015, 06:11 AM
Wrap a wire tie around the switch.


snowfish
Sep 4 2015, 09:35 PM
OK, you've been around here enough. ^o) You know the fan switches can crap out. :'( After fuses, and blower motor test, you may remember this. :hmm

If you look at the switch, there are holes that two zip ties will fit into.
Posted Image

http://geometroforum.com/topic/4541259/1/

:cheers


No need to put a new switch in (on top of the fact that the switch is an integral part of the heater controls that would require replacing the whole assembly), follow the link in Snowfish's post for repair instructions. I have this done in both of my Metros. You don't even have to remove the switch or the assembly, just everything covering it.
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HelterSkelter
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#1 Pizza Driver

yup, once again, thanks for the suggestion guys, but the switch is already jb welded and ziptied, as it has been for 4 years :}
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Memphis metro


You have to learn how to use a test light or multimeter to find out where voltage is going and where it is not going or replace parts till you replace the one that is not working.
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snowfish
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Basic GearHead

Memphis metro
Sep 6 2015, 03:37 AM
You have to learn how to use a test light or multimeter to find out where voltage is going and where it is not going or replace parts till you replace the one that is not working.
:+1 There you go. ^o) Plus this. :news

https://docs.google.com/file/d/0ByZnrvyffe1Kb242eVBnWnBFU3M/edit

Quote:
 
also, on a related note, there are a bunch of leaves and bug parts stuck in the system that get blown out through the vents frequently. where would i need to dig around to clear that out?


https://docs.google.com/file/d/0ByZnrvyffe1KX0hJSG95TEY2Ukk/edit

You have the tools. Now you just have to use them. :gamerz Let us know what you find. :popcorn And take pictures to help other in the future. :cheers

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HelterSkelter
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#1 Pizza Driver

i know how to use the multimeter, but i can't use it to test the switch, the whole thing is stuck in place do to it being broken and fixed by me.
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Memphis metro


You have to probe the wires going into the switch. Using the wiring diagram find which wire is providing voltage in and which wires are outgoing. Turn switch to off and check input voltage wire to switch. Is voltage present? Turn switch on and see if voltage is going out of switch on the perspected wire.


First check the HTR fuse in the fuse panel under the dash and see if it is blown, then check input voltage at the blower switch with the ignition switch turned on.
Input voltage should be present on the light green wire into the switch.
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HelterSkelter
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#1 Pizza Driver

i know, but the whole area is either jb welded or urethaned in place, there is no way to get a multimeter or check light in there.
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Memphis metro


If you want your fan to work your going to have to start cutting or whatever it takes to get to it to check it out.
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Metromightymouse
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Powdercoat Wizard

Or you're going to need a replacement and you're going to have to splice it in.
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snowfish
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Basic GearHead

HelterSkelter
Sep 9 2015, 04:48 PM
i know, but the whole area is either jb welded or urethaned in place, there is no way to get a multimeter or check light in there.
:smackface Modding and Repair Rules... :news
#1 Make it reversible.
#2 Make it look like it's supposed to be there.
Again, you know what you have to do. ^o) No more whining. :lol Either fix it, or live with it. :cheers
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idmetro
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HelterSkelter
Sep 9 2015, 04:48 PM
i know, but the whole area is either jb welded or urethaned in place, there is no way to get a multimeter or check light in there.
Follow the wires coming from the switch down to the next connector and test them there.
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