A/c Fix?????

[Auto Rage]

ok so i know there is alot of post about this and i've researched all post that i could find and nuh really fit my problem excactly so please post any possible problems or fixs thanks.

so here my situtation 02 protege 5, started having problems with a/c not working in 2 and 3 postions, then not working in 2,3, and 4 only postion 1. so call up jason at mazdaonline described prob to him he suggested that the blower resitor but then said it was prob the fan control so bought it, damn 200 bucks, put it in this morning and a/c blows on all speeds. so at that point i figured it was fixed and didnt really think about anything and so started to put everything back together, but before i did that ran up to the bank and left the car running with the a/c on full blast when i return to the car it was like a sonna* my a/c temp guage i had in the vent said it was about 82 degrees to i came back to the shop and i took about 2 miles before cool air started coming back through the vents. since the control unit wasnt fully installed back for some reason a touched the wires on the back and damn smokin hot mainly the black heavier gauged wire and plug was clearly alittle melted.
So if anyone has any reasoning on was is going on please help
thanks

 

[Auto Rage]

bump

 

[L8R]

http://www.mazdas247.com/forum/showthread.php?t=123678787

 

[Auto Rage]

http://www.mazdas247.com/forum/showthread.php?t=123678787

mine is not flickering anymore just gets hot and the wires and melting

 

[Mazda Premacy]

hot wire and melting = short or high amerage to over come the design of the wire.

u need to get the wire schematic and trace down where that wire leads to. in most cases u need to change out that single wire or the whole wire harness. not a good idea to leave a defective wire and later lead to a fire in the car.

 

[Brian MP5T]

Fan Resistor?

 

[Auto Rage]

not a good idea to leave a defective wire and later lead to a fire in the car.

yeah this is what im worried about. what,s weird about it is the wire wasnt getting hot with old ac unit that was flickering and not working on 2,3,4 settings.

 

[Auto Rage]

Fan Resistor?

thats what im wondering have you had this problem?

 

[Brian MP5T]

No but it's an easy and cheap fix.

It would eliminate one possibility fast...

Behind the glovebox. Many wires, 2 screws. 1 Plug, 5 minutes, $15.00

 

[Auto Rage]

No but it's an easy and cheap fix.

It would eliminate one possibility fast...

Behind the glovebox. Many wires, 2 screws. 1 Plug, 5 minutes, $15.00

damn 15 bucks you got a part number for it i called my dealer today they said 39 bucks and called it the blower reisitor

 

[2xsess]

My A/c doesn't cool at all with the engine just idling either.

 

[Brian MP5T]

Is the second fan working?

 

[Auto Rage]

Is the second fan working?

yeah second fan is working.
i also notice that the ac button does not have to be pushed for it to get hot.

 

[Weborific]

My wires get hot too...so I assume this is normal on our cars. One thing that MIGHT cause the melting is this:

To find my problem with the A/C, i decided to by-pass the blower switch all together. So I unplugged the black wire and 1 other wire that controls fan speed 2. I touched the wires together, thus by-passing the switch. The fan went on, but there was sparking as the wires touched. This is normal if you lightly press the 2 wires together. I smelled burning after doing this a few times. Is it possible that if your wires aren't solidly grabbing the contact pin of the fan switch, that you could be getting intermittent sparking?? Try the plier trick to squeeze the contacts closed, it may just be your solution... and let us know!

 

[Auto Rage]

My wires get hot too...so I assume this is normal on our cars. One thing that MIGHT cause the melting is this:

To find my problem with the A/C, i decided to by-pass the blower switch all together. So I unplugged the black wire and 1 other wire that controls fan speed 2. I touched the wires together, thus by-passing the switch. The fan went on, but there was sparking as the wires touched. This is normal if you lightly press the 2 wires together. I smelled burning after doing this a few times. Is it possible that if your wires aren't solidly grabbing the contact pin of the fan switch, that you could be getting intermittent sparking?? Try the plier trick to squeeze the contacts closed, it may just be your solution... and let us know!

how did you bypass it??

 

[Weborific]

The black wire plus ONE of the other wires will start the fan going. Take a look at the pic with the wires I posted on this link to show you which wire controls which speed...
http://www.mazdas247.com/forum/showthread.php?t=123678787

 

[Auto Rage]

The black wire plus ONE of the other wires will start the fan going. Take a look at the pic with the wires I posted on this link to show you which wire controls which speed...
http://www.mazdas247.com/forum/showthread.php?t=123678787

so are you using the fan control at all?
do your wires still get hot?

 

[Weborific]

Yes, I am using the fan switch. I only bypassed it momentarily to see if the switch was the culprit for my flickering A/C light. It was not.

 

[Auto Rage]

Yes, I am using the fan switch. I only bypassed it momentarily to see if the switch was the culprit for my flickering A/C light. It was not.

and i guess the black wire on your fan switch gets hot as well?

 

[Weborific]

I believe so...yes.