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Ac/ heather speed control not working. Only works on speed 2. 1,3 and four not working

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How do I change wiring on 1080 motor from ac to dc . And what do I use for speed control?


You can't. You buy AC motors to work from a mains supply, or DC motors to work off a battery. You can't alter the wiring to change one to the other.

Wiring a small 2 speed AC motor - Forum - All About Circuits

https://forum.allaboutcircuits.com > ... > Circuits and Projects > The Projects Forum
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Jul 10, 2011 - 6 posts - ‎3 authors How do I wire up a small 2 speed AC fan motor? It has three wires, ... The switch to which it was previously wired had Low and High. It has been ...

[PDF]AC & DC Motor Installation & Maintenance - Baldor.com

www.baldor.com/mvc/DownloadCenter/Files/MN416
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MN416. AC & DC Motor Installation & Maintenance ... intended only for lifting the motor and motor mounted standard ... regrease or change rusted bearings.
change wiring on 1080 motor from ac to dc Google Search

Jul 13, 2017 | AC Cars & Trucks

1 Answer

My ac and heather blower stop working and only works some of the times


More than likely the heater blower motor has worn armature brushes, replace the motor is the usual fix.

Jun 24, 2017 | AC Cars & Trucks

1 Answer

What is an AC diode fuse? I have a 2006 AWD Pontiac Torrent the AC/Heat doesn't work, I've changed all fuses for the HAVAC and still no AC/Heat blowing out of vents. What could be the problem?


Could be a number of thing's ! Testing the electrical circuit is the way to find out what's wrong . Using a wiring diagram and a DVOM - digital volt ohm meter . Videos on youtube showing how to test it ! Without testing i would only be guessing . Does it work in high speed ? In high speed it by-passes the resistor . If it doesn't work in any speed more then likely the blower motor is the problem !
Air Speed
The HVAC control assembly applies ground to the blower motor control circuit that corresponds to the selected blower speed. The resistors and the blower motor are in a series circuit. The following list represents the number of resistors in series with the blower motor per particular speed request:
• Low speed--3 resistors
• Medium 1 speed--2 resistors
• Medium 2 speed--1 resistor
When the operator requests High speed, the HVAC control assembly applies ground directly to the blower motor through the high blower motor control circuit. The resistor card has a fusible link which, if blown, will require that the card be replaced.

Blower Motor and Resistor Diagnostics by Wells

Jun 11, 2017 | Pontiac Cars & Trucks

1 Answer

1998 how to manually swith from Heather To AC can anyone help and also what part needs to b change it blows air but it's stuck on the heather


Under the dash is the heat box and it has two levers on it. One is for changing where the air comes out (floor, vents, defrost) the other is the BLEND door and that controls hot and cold. Look for the levers on the door, move the controls and see which one is not moving or if they both move it could be the DOOR inside the box that is broken off.

May 04, 2015 | AC Cars & Trucks

1 Answer

Control switch for heater/ac only works on # 5 speed, why doesnt 1 thru 4 work


This is typical of a voltage resistor pack problem, it controls the different speeds of the fan.
I'm not familier with your Tahoe, but this is usually installed right in the air stream of the fan to keep it cool.
Look for a connector block with 3 or four wires, installed under the dash of passenger side, right ito the air tube moulding, very close to the fan.. 2 or 3 screws, should be quite easy to replace it and inexpensive. Just be sure to install the new one all the way before trying to turn on fan. It needs the blowing air to cool or may burn out immediatly.

Mar 26, 2011 | 2001 Chevrolet Tahoe

2 Answers

AC only works on settings 3 & 5


souns like a bad blower resistor.the resistor controls the different speeds.sometimes every speed except the highest will stop working.the blower resistor is almost always near the blower motor.

Sep 03, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

'88 Camry AC buttons not working


fan speed controler could be bad, fan motor rellay could be bad.

Apr 14, 2009 | 1988 Cadillac Sedan DeVille

1 Answer

A/c heater climat control switch


Check the relais module located inside under the rh side of the heather box you can see the connector most of them need to be replaced as they burn out you may need to replace the blower motor as well,high amp draw caused by faulty bearings will overload the blower motor controller

Jan 16, 2009 | 2004 Chevrolet Silverado 1500 Crew Cab

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