If you’ve checked the fuse panel, and the fan motor doesn’t run at all, or if it runs only on the lower speeds, the blower motor relay may be at fault. There should be a chart in the cap saying what is what. Item location: Cypress, Texas, United States. Will buy again if I need something from you. Don’t try to install anything except the exact replacement. 4-Seasons® 35928 HVAC Blower Motor Relay. The older your car is, the easier this job will be. He has written patient education brochures for several pharmaceutical companies and has worked as an auto mechanic at Kim's Speedy Auto Service since 2007. Chris was great! Step 1: Determine what kind of system your car has. Thankfully, it is fairly simple to tell if the relay is malfunctioning and to install a replacement. Hi all, I have an American Standard Freedom 80. Most of the time, the switch is accessed from the back of the dash panel and can only be reached by removing a few pieces of trim. The blower motor relay is located in the under hood power distribution center and is simply labeled "Blower." Blower motor relay. Transmission system relay. AC compressor clutch relay. The blower motor relay is located in the under hood power distribution center and is simply labeled "Blower." Switches located in the center console can often be reached by removing individual panels on the side of the console. If the fan does not work at all, start in the fuse panel. If the knob on your system does not work, this may be a sign that the knob is broken even though the switch may still work. $8.99. If there was no refrigerant, then there is going to be air in the system. 1. For circuit descriptions and diagrams, refer to Air Conditioning/Heater in Wiring Diagrams. Thanks to some bad translation issues, some of the Audi manuals call this part the “comfort” relay. The rear AC for the far back seats works fine, but the front and cent â¦ read more (180) Glow plug relay (some models) 11 (175) Starter motor inhibitor switch relay/reversing lamps relay (some models) 12 (109) Engine control (EC)relay(Diesel) 13 (53/181) Engine coolant blower motor relay (^04/99) 14 (53) Fog lamps relay (^04/99) 15 (79/407) Boot lid/tail gate release relay. With this tutorial's, you'll â¦ YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. Rigo is very knowledgeable. The manual may refer to a blower relay, an AC relay, or a cooling fan relay. This may be true of the fully automatic systems as well. Replacing the fan switch begins by removing the knob. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Hand-picked, community-rated professionals, Our mechanics make house calls in over 2,000 cities, Explore nationwide job opportunities for automotive technicians, Trusted mechanics, rated by thousands of happy car owners, Fleet maintenance with certified mobile mechanics. Carefully inspect the knob all around using your inspection mirror to look underneath. Step 1. It is an older furnace, and I have checked the thermostat settings. However, different cars... Hello. Does it work on some of the speeds but not others? R5. I have a simple ICP Central AC unit in the house I bought last year. YourMechanic All rights reserved. Step 2: Shop for the relay. Be careful, there are usually locking tabs on the connector that have to be squeezed before it will release and pull off. There is no power to the resistor on low and medium speeds, I suspect the blower relay. How Long Does a Traction Control Switch Last? Blower motor relay fuse (located in the under-dash fuse box). Lift the control panel off the front of the furnace. Turned out that it was the A/C resistor (blower motor transistor) located under glove box--part cost $175 at dealer in Birmingham, AL. Some cars were available with either manual or automatic climate control. 7 Blower Motor Relay (VRR) Location. Feel along the sides of the panel to locate the â¦ Fair price. Step 1: Locate the relay. What Sensors in the AC Tell the Car If the System Is Working or Not? You may not be a switch that is replaced as a unit take a few minutes inspect... Specific computer equipment for accurate diagnosis you have decided which relay you ’ re ;... 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