37 used & new from ACDelco 15-81773 GM Original Equipment Heating and Air Conditioning Blower Control ModuleDetailsACDelco 15-81646 GM Original Equipment Heating and Air Conditioning Blower Motor with Wheel FREE Shipping. DetailsACDelco 15-73506 GM Original Equipment Air Conditioning Control Module FREE Shipping. See all vehicles this product fits. Buy "ACDelco 15-81773 GM Original Equipment Heating and...” from Amazon Warehouse Deals and save 64% off the $116.16 list price. 6.8 x 6.2 x 4.2 inches #3,093 in Automotive (See top 100) #1 in Automotive > Replacement Parts > Switches & Relays > Relays > Relay Control Module 9.6 ounces (View shipping rates and policies) ACDelco GM Original Equipment HVAC Blower Motor Control Modules are microprocessor computers that modulate HVAC blower speed. The control module receives input from the HVAC control module and is a GM-recommended replacement for your vehicle’s original component. This original equipment HVAC blower motor control module has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

GM Original Equipment (OE) GM OE parts replace those installed during the production of a GM vehicle and are designed to meet or exceed original-equipment specifications. ACDelco has a portfolio of more than 33,000 GM OE parts that fall into this category. The Professional category of high-quality aftermarket auto parts and products covers most GM vehicles as well as many other makes and models (varies by product line). Most of the current ACDelco line falls into this category, which is a high-quality alternative to GM OE products. Advantage products and auto parts offer fit, form and function for most make sand models similar to GM OE, but at a more attractive price. This provides a competitively priced, quality alternative to unbranded aftermarket components. For some parts, we also offer a Specialty line of auto parts. These products are designed to meet a specific need for a narrow audience – such as Performance brake products, which are rotors and friction designed for police vehicles.

5 star82%4 star13%3 star2%2 star1%1 star2%See all 312 customer reviewsTop Customer ReviewsFor Automatic Climate ControlsHVAC Blower ControllerFinally got the right part...awesomewhat size ac unit do i need for 1600Saved $$$$Works great on my 2003 GMC Envoy with Automatic temp controls.capacitor for ac current ACDelco 15-81728 OE Service HVAC Blower Motor Control Modulefix window unit air conditioner 6.4 x 6 x 4.1 inches 89019351, 93803636, 89018778, 52495874, 89018964 #162,882 in Automotive (See top 100) #359 in Automotive > Replacement Parts > Engine Cooling & Climate Control > HVAC Motors #2,136 in Automotive > Replacement Parts > Engine Cooling & Climate Control > Air Conditioning Air Conditioning Power Module

REPLACED THE FIRST YEARVery easy to install; easy to understand instructions. My truck heater blower is back to normal! At first I wasn't sure because it looked very different than the one that I took out. However after a month of use it is going strong. This part was really easy to install. Delivered as expected and worked flawlessly. I Would purchase again. Instructions were clear and included clear pictures for the replacement. Received the blower module (resistor pack) and it took about 15 minutes to install. Worked as advertised once you stripped and connected the wires (color to color). So far so good. Haven't had it long but saved me money and looks to be great quality. Most cars equipped with a manual heating, ventilation and air-conditioning (HVAC) system use a blower motor resistor to control the speed of the blower motor fan. The blower motor resistor is used to reduce the fan speed in lower settings (1,2 and 3). Some minivans and SUVs equipped with a separate heating and air conditioning system for the rear passengers use a separate blower motor resistor to control the speed of the rear blower motor fan.

Usually, a blower motor resistor is installed inside the HVAC system so that air flowing through the HVAC system cools down the resistor. Due to constant heating and cooling, as well as with a moisture present in the air, some parts of the blower motor resistor can corrode, causing it to stop working. The most common symptom of a failed blower motor resistor is when the fan works in "High" speed, but doesn't work in some lower speeds. The highest speed setting may still work because in most cars in the highest fan speed settings the current bypasses the blower motor resistor (see the diagram below). In some cars, if the resistor is failed, the fan may stop working completely. Another reason a blower motor resistor may fail is when the blower motor has a mechanical problem or when a foreign object jams the blower motor fan blade and prevents it from spinning freely. This leads to increased current through the resistor and causes it to overheat and fail. In most cars, replacing the blower motor resistor is not too difficult.

For example, in the 2001 Toyota Camry, it can be done within 15 minutes, the part can be purchased for $25-45 online. The resistor is installed near the blower motor underneath the passenger side of the dashboard. In some cars (e.g. Dodge Caravan, Ford Escape), the glove box needs to be removed, to get the access. Read about testing the blower motor resistor on the next page.Fan motors are the unsung “heart” of HVAC equipment. They work unobtrusively and quietly for years, often under tough conditions. They don’t need a lot of love, but they do need periodic attention and it’s up to you to provide it. The cost of overlooking regular testing and maintenance of motors can be an HVAC system that grinds to a halt, so be sure to check the motor on every maintenance and service call. When you arrive on a jobsite in which a unit’s fan motor is not working or the high-limit switch has tripped, the first thing to check is power to the motor and/or unit. If there is proper voltage, check the low-voltage control circuit.

Check for proper voltage at the transformer and check for a fuse in the low-voltage circuit. Make sure the circuit breaker is not tripped (or the fuse is not blown). If the circuit breaker is tripped (or fuse is blown) or if the transformer is bad, it could indicate a short in the motor. In that case, check the windings in the motor before turning the power back on. To check the windings of a motor for an open or a short, you’ll need to measure the ohms. If the unit has a 120V motor, it will most likely have three or four colored wires (black, red, yellow, and blue are common), a white wire, and two brown wires. Do a resistance check between the white wire and each of the colored wires. The higher the resistance, the lower the speed, with each color representing a different speed: i.e., four colored wires, 4-speed; three colored wires, 3-speed. You want to see a resistance reading. If you get a zero reading that means the motor winding is shorted and may be the cause of the tripped breaker/blown fuse.

If you get an infinite reading (overlimit or OL on most digital meters), that indicates an open motor winding. If either of these conditions exist you will have to replace the motor. When checking the ohms on motor windings, many technicians have difficulty determining an open winding vs. a shorted winding. But it’s really not hard to tell the difference between the two. It should show a resistance. If it shows a zero reading it probably means the windings are shorted out. If it shows an infinite reading, that means the windings are likely broken or open. A good trick to remember this is that an infinite reading means the greatest resistance in the world. It’s like an open door leading to infinity — in other words, an open winding. Meanwhile, a zero reading means the load is taking a short cut around it — in other words, a short. That’s just a simple trick to help you remember that a zero reading means a short, and an infinite reading means an open or broken winding. Just because a motor is not running doesn’t mean the motor is bad.

If the power is correct and the motor is neither shorted nor open, check the capacitor (that’s where the two brown wires go). A capacitor helps the motor run and gives it more torque. If a motor doesn’t have the torque to turn the blower wheel or the fan belt, it won’t start. So the capacitor plays a big role. The capacitors on most of residential blower motors are very small, so technicians tend to overlook them. You should discharge the capacitor before handling it. Using a capacitor tester, make sure the microfarad reading is within 10% of the rated capacitance on the capacitor. It will be a number listed in uF or mfd, depending on the manufacturer. If the reading does not match the rating, replace the capacitor. Checking 240V motors is slightly different because you will have two hot wires and most will be only single-speed. But you still ohm-out the windings to check for open and shorted windings and check the capacitor the same way. Finally, when doing a routine maintenance call on a unit, always check and clean the motor.