Heater fuse keeping blowing!! What do I need to replace and how do I do it?
07-01-2003 | 08:40 PM
#1
Thread Starter
Nordschleife Master
Joined: Oct 2002
Posts: 8,985
Likes: 3
From: Vancouver BC
Heater fuse keeping blowing!! What do I need to replace and how do I do it?
I searched the archives but I didn't find anything pertaining to the heater fuse.
I don't know if it's the heater core, or what, but I'm not getting hot air from the vents, and my heater fuse #16 (IIRC) blows everytime, even if I put in a higher AMP fuse. I've bled the system properly, but I'm afriad that if the heater isn't working, there is air in there.
Is it the valve or the core? Easy way to check? How to I get access to them?
Any help would be appreciated..
<img border="0" alt="[ouch]" title="" src="graemlins/c.gif" />
I don't know if it's the heater core, or what, but I'm not getting hot air from the vents, and my heater fuse #16 (IIRC) blows everytime, even if I put in a higher AMP fuse. I've bled the system properly, but I'm afriad that if the heater isn't working, there is air in there.
Is it the valve or the core? Easy way to check? How to I get access to them?
Any help would be appreciated..
<img border="0" alt="[ouch]" title="" src="graemlins/c.gif" />
07-01-2003 | 09:12 PM
#2
Three Wheelin'
Joined: Jul 2002
Posts: 1,807
Likes: 0
From: Connersville IN
an airlock etc won't blow a fuse. Sounds like the heater control itself or something else is causing your problem. I left my sunroof out once when it rained and it blew that fuse. Replaced it and now no problem. Try disconnecting the the heater control and then see if the fuse quits blowing that will get you started in the right direction. Eliminate things in the circuit until you lose the short.
07-02-2003 | 12:48 AM
#4
Addict
Rennlist Member
Rennlist Member
Joined: Feb 2002
Posts: 5,384
Likes: 1
The heating/cooling control unit fuse is fuse 17, 7.5Amp. Fuse 16 is the headlight motor.
If it is fuse 17, the clutch to the AC can blow this fuse, disconnect the wire going to the clutch first (single plug next to the A/C compressor). Next is the heating/cooling control unit. Remove the fan, temp and slider buttons. The panel will then pop out and you will see the screws that hold the control unit in place. Remove the screws and the unit will pull out. Disconnect the plugs on the back and see if this clears the short. The heater control unit is a little pricey to replace, over $300.
If it is fuse 17, the clutch to the AC can blow this fuse, disconnect the wire going to the clutch first (single plug next to the A/C compressor). Next is the heating/cooling control unit. Remove the fan, temp and slider buttons. The panel will then pop out and you will see the screws that hold the control unit in place. Remove the screws and the unit will pull out. Disconnect the plugs on the back and see if this clears the short. The heater control unit is a little pricey to replace, over $300.
07-02-2003 | 10:39 AM
#6
Burning Brakes
Joined: Jul 2002
Posts: 761
Likes: 0
From: Northern Virginia
when does the fuse blow? Does it blow the moment you put it in, when you turn on the blower, when you turn on the AC, when you adjust the temp? Do not put in a higher amp fuse unless you really like the smell of burning plastic, the original fuses are of the correct size to protect the components and wiring in the circuit. If the fuse blows immediately you might try turning everything off brfore you put in a new one and then turn items on, one at a time, until the fuse blows.
