Honda Car Forum


Go Back   Honda Car Forum - Accord Parts Civic Tuning Acura Racing > Discussion > Honda Technical

LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 18 Jun 2011, 03:31 pm
Junior Member
Join Date: Jun 2011
Posts: 2
Default 2002 honda accord AC/Heat fan only comes on on full blast?

Our 2002 Honda Accords AC stoped working. When set to Auto nothing happens, on manual it does not blow unless it's turned up all the way, but even then it doesn't blow cold or hot air, just me it seems like a sensor issur or switch problem...any suggestions?
Reply With Quote
  #2 (permalink)  
Old 18 Jun 2011, 03:46 pm
Senior Member
Join Date: Dec 2007
Posts: 152

The blower fan speed is one problem. Replacing the fan resistor would fix that so all speeds work.

You need a mechanic to diagnose the no cold and no hot problem because there are several things it could be.
Reply With Quote
  #3 (permalink)  
Old 18 Jun 2011, 04:01 pm
Join Date: Sep 2009
Posts: 62

Thebax20 you are correct but let me add one more thing...high resistance in the blower motor causes the resistor to go bad...replace the blower motor as well...good luck
Reply With Quote
  #4 (permalink)  
Old 18 Jun 2011, 04:16 pm
Senior Member
Join Date: Aug 2007
Posts: 1,032

At least we all agree the resistor pack is causing the fan problem. I also agree that bad fan bearings can cause the resistor pack to fail, but every failed resistor pack I have seen had an open thermal fuse, evidence of overheating of the pack. The pack is located in the ventilation duct so it will be cooled by the fan output. Anything that impedes air flow... bad fan, all vents being closed.... will open the thermal fuse. About one in three failures I have seen involved a bad fan.
Reply With Quote
  #5 (permalink)  
Old 18 Jun 2011, 04:31 pm
Junior Member
Join Date: Jun 2011
Posts: 1

By far, the most common cause would be a slow leak in the system, and Freon might have been lost, causing warm air to blow. There also can be lots of other possibilities.

Simply recharging an A/C system never fixes anything. An electrical problem may have occurred if there is a leak. The system has three major components and a few smaller ones. Most of the time, your problem lies in at least one of the three big ones: compressor, evaporator, and condenser. It also has a small metal can, containing desiccant, which should be changed whenever the system is opened.

The components are in different locations in the car, so there really is no such thing as replacing the whole air conditioner as many people think they have after a major repair.

Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
HONDA NSX FULL HOSAKA TUNING FACTORY FULL MODIFIED NA1 1994 FOR SALE big power For Sale / Want To Buy 0 08 Jul 2008 08:41 pm
the gas meter on my 2002 honda civic coupe, since 2 days ago, kept reading full tank. why is that? simon Honda Technical 2 28 May 2008 05:01 am
HONDA INTEGRA TYPE-R DC5 FULL MODIFIED 2002 FOR SALE big power For Sale / Want To Buy 0 14 May 2008 05:54 am
how do i avoid engine heat going into my Short Ram intake? Is a heat shield the only option? Jun S Honda Technical 6 28 Jan 2008 01:31 am
Why doesn't my levels 1 and 2 work on my a/c and heat with my 2002 Honda Accord? Blaupunked Honda Technical 6 08 Sep 2007 04:46 am

All times are GMT -5. The time now is 01:08 pm.

Honda News | Autoblog
Powered by Yahoo Answers

Powered by vBulletin®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc. is not affiliated with Honda Motor Company in any way. Honda Motor Company does not sponsor, support, or endorse in any way. Copyright/trademark/sales mark infringements are not intended or implied.