Front AC/heat blower not working

Hello,

It sounds like the blower motor or the blower motor relay or fuse has gone out but to be sure here are two guides to help walk us through the testing and the relay with fuse locations in the diagrams below as well.

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

and

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

First thing to do is check the fuses, the f32 and f57 both in the battery junction box. Plus f15 and f37 in the smart junction box. Then if all fuses okay, try swapping in or a new blower relay.

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.

I had this problem and had to replace the blower relay cost me $34.00.

I looked at a similar case you posted on the front ac not working or working intermittently. I have a similar situation. I checked all fuses and they are ok. I changed the relays and the problem is still present. How can I check if there is power to the front blower motor? Do you have a wiring diagram and a picture of the connector location for the front blower?

Thanks Roland

Hello

It sounds like you have a front blower motor relay that is not working or the blower motor is out here are two guides to help us see what's going on with the blower motor and AC wiring diagrams so you can see how the system works and the relay location

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit


and

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.

New relay cost me $32.00 all fixed.

Recently, the front ac will stop working...stop blowing/no air flow from ac vents or even defroster vents, etc but the rear continues and is good. When it works, air is cold, runs perfect, blows as should. But it may just randomly stop after working during that drive. Other times, when first getting in car, it may not work, then later drive, work when you get in. The rear still works, irregardless. Please help as we are on vacation with too many kids and we will be pulling our camper back when we return home. Is it the vaccum hose, blower, ???? Thank you.

I am assuming this is manual a/c where you don't set temp. try pulling fuses15 and 37 with key on it may reset the actuators it kind of sounds like your air inlet actuator is the problem. keep fuses out for 60 seconds. then reinstall. If not it wil have to be scanned for codes. If it's auto temp control this won't work and needs to be scanned for codes regardless the fuses are in smart junction box

It is a manual ac. The blow fan can not be heard In the front ac when it quits, but again, the rear still works fine during this. But when it chooses to work, yes, you can hear the blow fan. We pushed around on some wires around the blower fan and so far, it has not quit....but that may change momentarily. And we checked the fuse and pulled them.

And the fuses were good.

When it doesn't work have you tried smacking the blower motor with your hand to see if it starts working?Also do you have a multi meter to do some testing?

2003 expedition blower not working at all (back one works fine) , new blower and resisitor and relay , still nothing , i can run a jumper to the relay and it works , any ideas PLEASE!!!!!

Is jumper put on Yellow?red or Brown/Yellow

my heater blower dont work in front of my 2001 ford expedition i got a new blower put it in the same help. I went over the train tracks and I had the a/c on. The blower motor stopped working in the front. I got a new blower and its still not working. Would you be able to send me a diagram of the electrical system to the blower assembly with your response.

Have you checked the blower motor relay?

I've attached a picture of a component locator. Hope it helps.

My blower motor does not work in car I can run 12v to it and it will run good but in the car it does not work at all .i look at all the relays and fuse and all is good can that be that the motor is no good .

Yes the blower can be bad here is a guide that will show you how to test and find out whats going on.

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

The speed resistor or control right right next to the blower check out the diagrams (BELOW)

Please run some tests and get back to us.

Cheers

Yep the blower motor was bad thanks for the guide it worked perfect.

Good to hear, please use 2CarPros anytime we are here to help.

Cheers

My front dash vents do not blow any air unless im driving over 35 mph and its a soft air blowing out. i changed the motor and a relay. not sure what to check next.

check for a vacuum leak first it may be on your control head or the vacuum motor (item 1 in pic) then if vacuum motor works ok check to see if door is opening (item2) either one may not be. If a leak start from engine and work your way back to control etc.

i have a 1998 ford expedition with 95,000 miles. my friend and i just replaced the heater core. after puting everything back together, the front and rear heat won't turn on. we checked wires that go to the fan switch with a voltage meter, and it showed no power going to the switch. any ideas? thanks

check the fuses

ok, we checked the fuses under the dash, and they were all good. is there any i am missing?

look under the hood for a power distribution box. it'll have other fuses and relays in there. make sure all your relays and fuses are good, if the problem still exists, then you need to chase the wires from the switch on back. look for broken or pinched wires, loose connections, including loose grounds. hope this helps