How to replace air conditioner fuses step by step?
Below, you’ll find detailed, step-by-step instructions on how to troubleshoot the problem by: Checking the fuses. Checking the voltage. Removing and replacing the fuses. Let’s get that A/C up and running again without breaking the bank. What Do Fuses Do? Think of a fuse like a secret service agent. It takes the shot.
How can I tell if my a / C Fuse has been blown?
Kind of cool, eh? If you suspect your fuses may be blown, the first thing you’ll notice is that the A/C unit outside is not doing anything. You may hear a slight humming, but that’s all. The best way to check the fuse is by using a voltmeter.
Where are the fuses located in a Mercedes C class?
Figure 3. Regular and mini size auto fuses arranged by amperage and color. There are three fuse boxes; located in the engine compartment, trunk and cabin as shown above. Use the Fuse Diagram found with the fuses, or attached below, to determine fuse location and amperage.
Why do capacitor fuses fail on an air conditioner?
This holds true for nearly any electrical appliance. Heat is one of the worst things for electrical equipment like an A/C. Increased temperatures cause electrical components to run hotter than recommended, and this causes them to fail. When it comes to air conditioning, it is the capacitor and fuses that are most likely to “feel the heat.”
What causes a Mercedes C class to blow a fuse?
In older cars, the power wire itself may work loose and chafe on the chassis. The wire insulation wears off, and the bare wire contacts the chassis, completing the short circuit back to the battery and blowing the fuse. Because the wire is loose, this short circuit can come and go.
Where are the fuses located in a car?
There are three fuse boxes; located in the engine compartment, trunk and cabin as shown above. Use the Fuse Diagram found with the fuses, or attached below, to determine fuse location and amperage. Note: US spec models may have no fuses in the left-side instrument panel. Find a bad fuse by checking continuity with a multi-meter.
How is the power supply controlled by a fuse?
Each power supply wire is controlled by a switch and a fuse. The fuse is designed to carry no more than the normal current on that circuit: In normal use, the fuse is intact. The current flows through the full circuit, and you use the switch to turn on or off the component.
Where are the fuses on a Mercedes Benz W204?
Testing fuses in place with a multimeter. Use the Mercedes fuse allocation chart to locate a specific fuse and amperage. For instance, the reading lamps are on fuse #17, rated at 30 amps and located in the under hood box. Figure 6. W204 fuse allocation chart (page 1). Figure 7. W204 fuse allocation chart (page 2). Figure 8.