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1996 Coleman Model 7333C8876. Have 2 units on our Motor Home one day it was hot so I had both units running controlled by a Electronic Climate Control system. It got cool in the evening so I turned them off. The next day when i fired them both up on high the rear was fine. But the front will only cool on Low. The fan will not run on high and you can hear a slight noise coming from the unit. But the fan will not run on high.

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Check to make sure the drain tube is clear. It sounds like the blower fan is dragging in water buil-up.

Posted on Jul 24, 2009

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Why are A/C and heat lights on at same time on controller?


if you have a climate control system the that would indicate both units operating to maintain the climate control setting
if the day gets too hot then the heat should go out or of the night is too cold the ac will go out

Sep 12, 2015 | 1996 Lincoln Mark VIII

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1996 Park Ave, blower motor is intermittent... when it does work, the speed changes when I take a turn. It has Climate Control, so I think the control module is the culprit, but I can't find the darn...


Automatic climate control? The HVAC control module is the part with the buttons that control the heater in the dash.

The first thing I would do is access the blower motor. With key on and/or the engine running wiggle the connector at the blower motor. It you get the same symptom than replace the blower motor. I run into quite a few of these with this symptom.

Oct 07, 2011 | 1996 Buick Park Avenue

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Fan only works on speed 4. Is the resister the problem? 1-3 do not work and was that way when i bought the used volvo 850 wagon.


If your car has Manual Climate Control (that is without ECC - Electronic Climate Control), then the problem is most likely the resistor. Costs about $85 on line. Models with ECC do not have a blower motor resistor. On those vehicles, this function is handled by the A/C Power Module. There are four different power modules, depending on your build date (chassis number). Any of them will run you about $125 on line.

Feb 24, 2011 | 1996 Volvo 850

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My 1997 ford f150 heater will not blow hot air. i have replace the switch that controls the hot and cold air. i do not know what else to do. i do not heat any vacuum noise when i switch it to the heater or...


first, check under te hood to see if the heater core water hoses are hot going in and coming out. If hot going in but cold coming out, water valve (if you have one) may not be working.
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Control System Outputs
The air management doors are controlled by vacuum control motors (18A318) and an A/C electronic door actuator motor (19E616). The air inlet and distribution doors are controlled by vacuum control motors. The temperature blend door is controlled by the A/C electronic door actuator motor.
The A/C electronic door actuator motor provides a variable number of temperature blend door positions. Temperature control position energizes the A/C electronic door actuator motor moving the temperature blend door.
Vacuum control motors are used on both air distribution and air inlet doors. The air inlet and panel/defrost doors use a two position vacuum control motor. The floor duct/panel door uses a three position vacuum control motor. Vacuum control motors are controlled by engine vacuum through the climate control head.
For more information on the control components Section 412-04 .
-------------------------------------------------------------------------------------------------------------------------------------
Air Management Doors
The air management doors are controlled by vacuum control motors (18A318) and an A/C electronic door actuator motor (19E616). The air inlet and distribution doors are controlled by a vacuum control motor. The temperature blend door is controlled by the A/C electronic door actuator motor.
The A/C electronic door actuator motor provides a variable number of temperature blend door positions. Temperature control position energizes the A/C electronic door actuator motor moving the temperature blend door.
Vacuum control motors are used on both air distribution and air inlet doors. The air inlet and panel/defrost doors use a two position vacuum control motor. The floor duct/panel door uses a three position vacuum control motor. Vacuum control motors are controlled by engine vacuum through the climate control head.
-------------------------------------------------------------------------------------------------------------------
Section 412-04: Control Components - Climate Control 1997 F-150, F-250 Workshop Manual
REMOVAL AND INSTALLATION A/C Electronic Actuator
Removal
  1. Remove the floor duct panel.
    • Remove the two plastic push pins (one each side) and release the expander clip.
  1. Remove the RH instrument panel brace.
    1. Remove the lower nut.
    1. Remove the upper bolt.
    1. Remove the brace.
  1. Remove the LH instrument panel lower nut and position brace out of the way.
  1. Disconnect the vacuum harness from the vacuum actuator.
  1. Remove the floor duct.
    1. Remove the two screws (one each side).
    1. Remove the floor duct.
  1. Remove the panel/floor door vacuum control motor.
    1. Disconnect the vacuum line connector.
    1. Remove the two panel/floor door vacuum control motor screws.
    1. Slide the rod out of the door and remove the panel/floor door vacuum control motor.
  1. Remove the electronic actuator.
    1. Disconnect the electrical connector.
    1. Remove the three screws.
    1. Pull down to release the actuator shaft and remove the electronic actuator.

Jan 24, 2011 | 1997 Ford F150 Regular Cab

1 Answer

I have a 1996 Cadillac Sedan DeVille. This spring...


If the a/c does not engage as a result of the electronic control system in your 1996 Cadillac, the climate control system may need to be replaced.

However, if the problem is being caused by low charge of R134a in the system, have the system charged before changing that electronic part.

I have never seen a Cadillac Climate Control System do this, which leads me to believe that it may be more electronic than refrigerant pressure related.

If the refrigerant pressure was low in the system, the climate control system should still stay on 'auto' mode, I think, and simply blow warm air.

May 19, 2010 | 1996 Cadillac DeVille

1 Answer

Need to find and fix blend door on 2001 Audi A4 Quattro 2.8L


you would have to remove the dash. i would first check the auxilary water pump to make sure it's not leaking. if your car has electronic climate control turn the heat on low with the engine off the change the temperature and listen for an electric motor sound to see if the blend motor is working.

Oct 29, 2009 | 2001 Audi A4

1 Answer

No problem-just want info


This unit is electronic ignition

Feb 26, 2009 | Tools & Hardware - Others

1 Answer

Blower fan does not work on low or medium only on high. Lx model has auto climate control. wondering if it is blower motor, blower resister, or control (bad contacts). All buttons work on climate control....


Sounds like the problem is more with the blower motor assembly itself. The blower motor have micro-proccers built itnto them which comunicate with the control heads and do the actual regulating of the fan motor. Dealers have computers with diagnostic software which allows them to monitor what is happening in the eletronic controls of the vehicle. Electronic diagnostics without the diagnostic software makes it very diffecult to pinpoint the actual item causing the problem.

Jan 01, 2009 | Hyundai Motor 2003 Sonata

1 Answer

Heater problems


there is a blower motor control unit under the hood on the right side near the firewall, unplug this and it should stop running. normal problem for a lot of gm cars with electronic climate control

Nov 23, 2008 | 1989 Oldsmobile Delta 88

2 Answers

Climate control unit passengers side


it is probably a solenoid or vacuume motor that has failed where the heater core is located

Jul 14, 2008 | 1998 Buick LeSabre

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