1992 Prelude Heater Probs - Honda Prelude Forum

Marz · 03-01-2009, 01:58 PM

I am new to this site; I have tried to search around and find my problem but nothing is the same. Heres my problem any help or tips is greatly appreciated.

My heater pressure seems to be gone; All the lights work.... It has warm air coming out which will keep it defrosted / semi warm in the car but it will not blow out strong; there is no pressure; its like the heat you get when ur heater is all the way down. It use to work; then it kicked out; Then it worked again; Now its been dead for a few months now. Im curious if i need a new heater blower or if maybe it is something else. Let me know please. Thank you

Marz · 03-01-2009, 02:03 PM

I also wanted to note that when it worked strong it sounded like the fan was struggling in the end; i could hear it spinning like it was wearing out.

Lo Key · 03-01-2009, 02:05 PM

Hmm, I'm not sure, but I remember one time my sisters car stopped blowing, and she charged her A/C and it worked. It comes in little aresol cans with hoses attatched. But that was the A/C in middle of summer. For all I know the A/C and heater can be completely different systems, I'm not positive. But maybe that would help, someone tell me if I'm wrong...

S-LudeDan · 03-01-2009, 03:39 PM

you might need a new heater blower motor

spin_r_g · 03-01-2009, 03:51 PM

Does air blow at any of the settings? If it does that I'd say the blow resister is bad.

Marz · 03-01-2009, 04:07 PM

if i adjust the settings to anything ; there is no change. like the blower isnt working at all. no pressure ; it does push out some heat like i said in the beg of post but its so low u cant hear it ; pretty much like its off but just a slight amount comes out..... it barly heats the car/ defrost the windshield. any tips help

Asgard · 03-08-2009, 06:17 PM

Totally the same problem here. Can anyone help ?

Asgard · 03-12-2009, 03:35 AM

Checked the air vent under the hood. It was clean, no leaves or other sh!t. That just leaves clugged evaporator or just a half-dead blower unit.

red2010_2008 · 03-12-2009, 07:09 AM

Yea same here mine wont blow strong air either.

spin_r_g · 03-12-2009, 01:03 PM

Alright I'm gonna repost this from the another thread with some additions.

If you you can tell that the blower is not blowing any air at all do the following.

Check fuse #9 under the dash and fuse #35 under the hood.

If both of those are good. Turn the ignition on go to the blower motor there should be a 2 wire harness. One of the wires is blue/red. Ground that wire. The motor should run. If not unplug that harness. Measure voltage from the blue/white wire and ground. If there's voltage then the blower is bad and you need to replace it. If there is no voltage turn the ignition off and check the blower motor relay.

Other things to check if the motor does run. The blower resister maybe bad or the fan switch it self maybe bad. Once those are ruled out then you may have an open or short in one of the wires. This is where it gets tricky and you'll need a wiring diagram and where I tell you get a helms manual.

Asgard · 03-12-2009, 01:33 PM

Quote:

Turn the ignition on go to the blower motor there should be a 2 wire harness. One of the wires is blue/red. Ground that wire. The motor should run. If not unplug that harness. Measure voltage from the blue/white wire and ground. If there's voltage then the blower is bad and you need to replace it. If there is no voltage turn the ignition off and check the blower motor relay.

Sorry for being such a newbie, but could you explain this part as easy as possible ? What tools do I need ?

spin_r_g · 03-12-2009, 01:39 PM

Quote:

Originally Posted by Asgard

Sorry for being such a newbie, but could you explain this part as easy as possible ? What tools do I need ?

I don't get how I can explain the first part any easier. If you don't have any understanding of dc voltage and do not own a multimeter I don't recommend you just poking around with it as you can cause damage to the electrical system.