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How to remove 30 amp blower fuse - 2004 Chevrolet Impala

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2004. Why is the blower motor not receiving power?


The blower motor relay in the auxiliary junction box under the hood is good ? All relays ? only one controls the blower motor ! The electronic automatic temperature control module turns it on by supplying a ground inside the module ! The 30 amp fuse for the blower motor is located in the under hood auxiliary junction box ! At the relay socket test for battery voltage at pins 30 an 86 ,power form 30amp fuse ! The other two pins 85 an 87 ,85 is circuit to the electronic temperature control module . You could test this part of the circuit too , with a test light or volt meter . But if no voltage to the blower motor ,could be the electronic temperature control module is bad ! VEHICLE RELAYS Operation Diagnosis

Jun 11, 2015 | Lincoln LS Cars & Trucks

2 Answers

Where is the A/C heater blower fuse?


fuse for heater is 30 amp and a 10 amp relay found behind a small removable panel in dash and also there is a 10 amp a/c fuse in fuse box under hood of car

Jul 11, 2014 | 2002 Mitsubishi Lancer

1 Answer

Is there a blower motor relay or fuse on a 1995 Mazda Protege lx?


That fuse sounds like it powers the ac compressor.
The blower motor usually takes a 30 amp fuse.
Does the blower motor work if you hook it to direct voltage ?

Jul 04, 2012 | Cars & Trucks

1 Answer

BLOWER FAN WILL NOT RUN ON HIGH SPEED. WHAT TO CHECK??


The relay for the manual blower system is a different relay from the others. It has terminal 87 which is the high amp terminal. It comes through fuse 3 on the relay center, a 30 amp fuse. It it is right hand underhood.

The relay also contacts terminal 87A which is the lower power circuit that gets 25 amp from fuse 5D in the instrument panel fuse block. That supplies the 3 lower speeds and when switched to high applies voltage to the relay switching it from the 25 amp circuit to the 30 amp circuit.

The SAME wiring supplies the blower from the relay on to the blower. The blower uses only one ground which is terminal B on the blower motor. Your motor should have run the same but when you disconnected the terminal socket for both A and B from the blower motor, there was no ground. You do have to supply your own ground!

Easy check is fuse 3 in the relay center. Hope it's blown. Might question why it blew, but that's an easy replacement. I might indicate impending blower motor failure with age and high current loads.

it could indicate the relay is stuck on the 87A contact and not switching under power to the other terminal. Could be primary circuit blown not pulling the relay or could be the contacts are physically burned to the most-used contact.

Jun 06, 2011 | Chevrolet Corvette Cars & Trucks

1 Answer

Front blower motor will not work in 1994 f 350 van all fuses are good no power anywhere (at switch, resistor, or blower motor in any position


check the 50 amp fuse in teh engine compartment fuse/realy box. Also check the blower motor relay that the fuse protects.
Alos, check fuse 9, 15 amp in fuse panel in truck.

Test by applying 12 volts to teh orange/red wire at teh blower motor connector. Use a 10 or 12 gauge wire with a 25 or 30 amp fuse in line.

report back

Jan 11, 2011 | 2002 Ford E350

1 Answer

Where is the fuse for the blower fan motor on a 2005 Freestar van


IT IS IN THE ENGINE COMPARTMENT IN THE FUSE BOX ON THE RIGHT HAND SIDE AND THE FUSE IS TOWARDS THE BACK OF THE BOX ON THE LEFT SIDE OF IT IN THE 2ND ROW FROM THE BACK OF THE BOX AND IT IS THE 2ND FUSE OVER FROM THE LEFT IN THAT ROW. IT IS LABLED F7 AND IS A 30 AMP FUSE FOR AUXILLIRY BLOWER MOTOR RELAY. ALSO, THERE IS ANOTHER ONE IN THE FIRST ROW IN THE BACK OF THE BOX AND 2ND OVER FROM THE RIGHT AND IT IS LABLED F14 AND IS A 30 AMP FUSE FOR THE FRONT BLOWER MOTOR RELAY.

Dec 08, 2010 | 2005 Ford Freestar

1 Answer

I need to know witch fuse is for air contioning


40 AMP FUSE FOR AUXILIARY BLOWER MOTOR 30 AMP FUSE FOR FRONT BLOWER AND 10 AMP FUSE FOR AC - HEATER CONTROL SWITCH.

Aug 13, 2010 | 1998 Ford Windstar

1 Answer

Blown Fuse


Hello Kilwillie.
Anytime a fuse blows the circuit is being overloaded.
There are a couple of fuses that control your blower. The 30 amp fuse link and a 10 amp fuse for the blower motor relay.
If it is the 30 amp the blower system needs to be checked for the cause of the short.
Positive battery voltage goes to the blower motor and the control switch routes the ground circuit through a resistor to give various fan speeds.
Most common will be the blower motor itself having worn motor shaft bushings or an internal motor short. This will require motor replacement. Also have seen where a mouse has built a nest and it gets caught in the blower fan causing it to overlooad.
If the wire after the blower was shorting to ground the blower would come on high speed and not be your problem

And if the fuse is the 10 amp it appears the fault may lie in the blower motor relay. I believe that would be the only logical solution according to the wiring diagram.

Nov 30, 2009 | 2000 Hyundai Accent

1 Answer

98 ford contour no blower motor


fuse 37, 30 amp in central juction box and fuse 23, 15 amp in CJB.

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Jan 28, 2009 | 1998 Ford Contour

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