Question about Heating & Cooling
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Posted on Jan 02, 2017
SOURCE: 2004 Yukon Denali
This is from the A/C Module located under the dash passenger side, check wether the internal fan is working if it is, then change the Module which is a small black part with two white metal blades like... and your A/C should work again...
Posted on Mar 21, 2009
It sounds like that unit is connected to a "power saving load controller" device from the power company. The power company can turn your unit on & off with a radio signal. If you manually activated contactor and unit ran. I would bet that the power company's device or the wiring connecting it is where the problem lies. Call the power company and have them check their device. If they tell you that the device has been tested remotely and is working fine. Explain to them that you can activate your unit manually and it works fine. They should not charge you to come out. Those "load controller devices" have a pretty good longevity record.
Posted on Jul 11, 2012
Testimonial: "Thank you. I was not aware that the power company had that ability. I will give them a call and ask about a test of their unit. Last year they sent me a postcard asking if I wanted to participate in their energy saving program. I declined but was not aware that they still had a device attached which could do it. I really hate surprises."
all speeds go through the resistor except high that is why it will work on high you are bypassing the resistor if you are sure the resistor is good it has to be the blower spped switch on the dash
Posted on Sep 24, 2012
Testimonial: "Thanks for your help! Is there a way that I can check if the resistor is blown or not? There is no rust or loose connections. Or do I just have to buy a new one? Thanks again. "
your blend door motor is stuck or it may need to be replaced. the blend door controls the temp from heat to a/c
Posted on Nov 18, 2012
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