How to Change Blower Speed - Ultra 80 III


Old 05-30-14, 07:02 PM
Thread Starter
Join Date: May 2014
Posts: 1
Question How to Change Blower Speed - Ultra 80 III

I have an Ultra 80 III, which is probably about 15+ years old. I was told the blower motor is set too high (at highest setting) and needs to be reduced by one.

Any suggestions for this poor old first timer?
Sponsored Links
Old 05-30-14, 09:54 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 50,518
Likes Received: 105
Welcome to the forums.

Set to highest speed for A/C or heat ?
Usually A/C is the highest speed and heat is medium high or medium.

Ultra 80 is only a trade name. We'd need the actual model number for the unit.

The wiring diagram should be posted on the blower door of your unit. If you pulled the door off it should have what colors are what speed and you could look on the board to see which ones were connected and to where.
Old 05-30-14, 09:55 PM
user 10's Avatar
Join Date: Mar 2004
Location: NA
Posts: 1,834
Likes Received: 6
High may be the correct setting.

You don't need to change it if the temperature rise is correct -> google how to check it.

You shouldn't change speeds without measuring airflow first.

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 Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes