Mazda 323,Mazda 626 & Mazda 929 Whether the compact 323, the mid sized 626, or the full sized 929, these vehicles remain very popular even though production has stopped.

929 RHD 1990 Aust. Prod. Heater motor inop.

  #1  
Old 05-30-2012, 03:27 AM
Junior Member
Thread Starter
Join Date: Oct 2011
Posts: 8
Default 929 RHD 1990 Aust. Prod. Heater motor inop.

My 70,000 km Right Hand Drive 1990 HC mk2 929's heater fan motor stopped working a couple of weeks ago. It stopped (I think) whilst I was adjusting the fan speed slider control from low to medium. The A/C was not on, and the heater valve was at medium. Vent control on, with air also to footwell. Now the Air cond. compressor cuts in as normal when the fan control is turned on, but there is no fan. The heater still works but without fan boost. All directional controls seem OK. It's hard for me to get under the dash (I'm in my '60's and other probs.); but the circuit breaker is in place and I think all fuses in the footwell fuse box are good. Can someone please give me a hint as to what may be the problem?
 
  #2  
Old 05-31-2012, 05:15 PM
tanprotege's Avatar
Senior Member
Join Date: Jun 2011
Location: Midwest
Posts: 2,390
Default

It may be the blower motor itself, the switch, the relay for the blower, or the blower resistor. You will need to use a voltage tester or swap parts to narrow this down.
The switch is the least likely cause since the AC is reacting to it.
In my Protege (LHD)there are relays in the driver's side footwell just above the pedals. There were two of the same kind and I switched them out. If one was bad the problem should have moved to the other circuit. They both were good. I replaced the resistor and that was a waste of money. In the end it was the blower switch in the dash.
 
  #3  
Old 06-01-2012, 01:10 AM
Junior Member
Thread Starter
Join Date: Oct 2011
Posts: 8
Default

Thanks TanProtege. I don't have a service manual as this was a scarce model in Australia, but I'll see if there are any panels under the dash which might hide relays or the resistor and be easily removed.
 
  #4  
Old 07-12-2012, 01:09 AM
Junior Member
Thread Starter
Join Date: Oct 2011
Posts: 8
Default

Hi TanProtege; gave a Mazda dealer the job of fixing the problem. 20 minutes work and the attention of the mechanics' special tool (a quick whack with a hammer) and the fan motor works again. Didn't even charge me for it (done same time as I had the timing belt replaced). Rgds, David
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mazda2nvs
Mazda Pickup Trucks
0
02-17-2012 05:51 PM
hawker
Mazda6
3
05-07-2009 01:44 AM
paraxis
Mazda 323,Mazda 626 & Mazda 929
0
12-10-2008 11:12 AM
Craigwell
Mazda 323,Mazda 626 & Mazda 929
4
10-30-2006 08:38 PM
Finski
Mazda 323,Mazda 626 & Mazda 929
2
11-22-2005 11:02 PM


Thread Tools
Search this Thread
Quick Reply: 929 RHD 1990 Aust. Prod. Heater motor inop.


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.