Heater Fan Control

[kakirubi]

O.K. my jeep just came off of the warrantee and now my heater fan only blows on high.  Anybody had this happen and what do I replace?

I was thinking the control itself.

 

[NomadJeep]

It is the heater control relay... it is a common problem... if it is a lot of money, contact me and I have a solution for you..  (I have a Rubi too)

edit- not switch,

 

[tjcoastie20]

I had luck bypassing the resistor so the fan only blows on medium, when you select a vent position. turn the vents off the fan shuts off. vents on,  fan blows medium. its not great but its cheap.

 

[kakirubi]

Blower motor resistor or heater control relay?  Are the both the same dodad, or are the two separate parts I should get.

 

[albalb]

it's the resistor that controls the various speeds ... if it's only working on high, that's probably your problem.

p.s.  Hi Bruce!  <- Al from NFA

 

[kakirubi]

Hi Al, welcome to the board!

 

[DonnyG]

I concur.  Blower motor resistor pack.  The resistor pack is a set of coiled wires that control the speed of the fan.  There are three separate coils with different resistances.  Lo, med-lo, med-hi, and Hi.  Hi is a direct link.  Usually one resistor will burn out and it will default to hi.  Pain to get to, but definately a D.I.Y. repair.  Autozone has the resistors in stock most of the time.  I would recommend Wells.  They have a lifetime replacement warranty on their electronics.

Donny

 

[kakirubi]

Well, I ASSumed it was a dealer part.  Called Bolles this morning and they had one in stock for 15 bucks.

So off I go to the dealer and picked up the new part.  After about 20 min of swearing and tring to get the connector off.(longest part of repair)  I get the new unit in and PRESTO IT WORKED! :grinyes:

Thanks alot guys! 

I JUST SAVE A BUNCH OF MONEY ON MY JEEP REPAIR!!!

THIS SITE IS THE BALLS! :grinyes: :grinyes: :grinyes: :grinyes: :grinyes: :grinyes: :grinyes: :grinyes:

 

[DonnyG]

Glad we could help.