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fuse keeps going out

:dunno: (mercury-man)  i need some help guys on our way back from cjam we were twenty miles from home when our [c.control,clock,a/c]went bye-bye. found out later it was a 20a fuse blown we tried another one it blew also. can someone let us what to check for or needs to be replaced. thanks

fuse keeps going out

Reply #1 –
Sounds like you are talking about fuse #6.

It goes to: A/C clutch, Rear window defroster, Anti-theft module, Clock, Trunk release, Lamp out warning module, Warning chime module and the cornering lamps.

You may not have some of these features.

You have to narrow it down. Does the fuse blow if you leave the A/C off?
Does it blow when you use the turn signals?

fuse keeps going out

Reply #2 –
softtouch, not while in the lower cycle, would this effect my c.control  to. plus i don't have some of those options, the radio makes a tick noise just after it's turned to the higher cycle then the fuse goes out and the radio still plays thanks for the (reply)

fuse keeps going out

Reply #3 –
ok
when you used the phrase "not in the lower cycles" ill assume you mean something having to do with the blower motor setting.  Havign said that, fuse 9 and 17 come into play as well being a 30 and a 15 respectively.  You may have a very weighted down squirel cage from debris buldup and its bogging down the blower motor. Watch for the error related to fuse 17.


so.......................................first trick,, unhook your blower motor connector located behind the glove box and just to the left and see if your fuses continue to blow.

but.........................................

heres what you need to do

First, look at the diagram / pic of the fuse panel posted and tell us "the exact" fuse that blows.

from there, and while you are waiting on responses,, remove that fuse and tell us what does not work with the fuse out.  I know you said the fuse was blown / blowing but remove it anyway.

make a list of whats not working from exterior to interior. 

next, disconect each circuit thats non functional to your best ability.  insert a new fuse and see if it blows. 
If it does, you do not have all the circuits disconnected that are fused by this one that keeps blowing.

if the fuse does not blow after everything this fuse controls is diconnected, start connecting each circuit back up one at a time with a test drive involved.  eventually the problem circuit will show itself.

Id suggest you stop using fuses and substitute in one of the silver circuit breakers instead.  They will heat up and open, then cool off and close again.  this will save you time as well as temptation of installing a fuse thats too large once you run out of 20a fuses.

fuse keeps going out

Reply #4 –
jcassity- thanks for the info will start checking the fuses and get back to ya.  mercury-man

fuse keeps going out

Reply #5 –
Yes fuse #6 also goes to the cruise control module.
I am also confused by "higher cycle". Can you tell us what the label on the control actually says?
Do you have manual or automatic temperature control?

I think my '84 EVTM fuse panel is closer to your car than cassidy's '87.

fuse keeps going out

Reply #6 –
softtouch- what i mean't to say was when the blower is on high or low, i have a manual temp-control. i'm currently checking other options to see if i can locate this power surge. sorry for the goof!!! (mercury-man)

fuse keeps going out

Reply #7 –
Can you confirm that it fuse #6 that is blowing?

The blower is on fuse #9 and it is the only thing on fuse #9.

The blower and A/C controls are two seperate parts of the same physical switch.

It is possible the two parts of the switch are shorted together.

fuse keeps going out

Reply #8 –
im bettin on a boggin down hvac motor cause momma mouse built a nest.

im staying with fuse 9,,,,,,,,although flipping my laptop upside down,, could be a six:D

fuse keeps going out

Reply #9 –
softtouch- the fuse that keeps going out is #6  (yellow 20a), i will be checking today for what else dosen't come on then let you all know. thanks again for your input mercury-man

fuse keeps going out

Reply #10 –
:hick: okay guys here whats working headlights, turn signals,brake lights, 4way flasher (1) coachlamp, dashboard lights work and heres whats not working side marker lights,d.clock,interior backseat lights. my a/c blower comes on but does not put out any cool air,cruise control, as for the coachlamp not working i'm seeking another person to help get this resolved. i hope this is all the things that you needed from me if not just keep repling thanks. (mercury-man)

fuse keeps going out

Reply #11 –
Move the A/C-Heater Function selector switch off of A/C Norm or Max. Put in on Vent. Can you now run the blower at high speed without blowing the fuse?

fuse keeps going out

Reply #12 –
softtouch- i'll get back to this wed. morning because it's fricking hot outside. i sure could use a cooled garage to be doing this. could this be a bad blower switch or a relay switch!!!!

fuse keeps going out

Reply #13 –
The blower motor should not be blowing fuse #6 no matter how bad it is. It should only blow fuse #9.

fuse keeps going out

Reply #14 –
so what happens if the fues goes out again whats the next step to try.