Under the instrument panel, look under the glove box. On the right side of the fender wall you will find another fuse box. The blower motor fuse is easy to replace.the heater fuse/relay is behind the kick panel on the p/s of the car (kick panel is the panel under the dash and between the door and firewall) also while you are down in that area check to make sure the blower motor is getting voltage aka bad blower motor)
Is there a fuse for the heater blower motor?
Many vehicles have two fuses for the blower motor, one in the interior fuse block and the other under the hood. The blower motor is usually under the dashboard on the passenger side.
Which fuse is the blower motor fuse?
How do I know if my blower motor fuse is blown?
If you hear that the blower motor is operating but don't feel any air flowing through the vents, the problem is with the airflow controls [source: RepairPal]. If the blower motor isn't running you should: Use voltmeter or ohmmeter to check for a blown fuse.
How do I know if my heater fuse is blown?
You can quickly determine by checking resistance with a multimeter. A good fuse will have nearly zero ohms of resistance, if the fuse is blown there will be no reading.
Is there a fuse for the heater blower motor?
Many vehicles have two fuses for the blower motor, one in the interior fuse block and the other under the hood. The blower motor is usually under the dashboard on the passenger side.
Will a blown fuse cause my heater not to work?
Faulty Wiring or Blown Fuses Similar to your broken HVAC controls, your car's wiring could be broken or have a short in it. This would mean the heater isn't triggered when the driver commands it to function.
Which fuse controls heater in car?
The blower fuse is a 40 amp fuse located in the engine compartment's fuse box.
What causes heater blower not working?
If little air is coming through the vents (hot or cold), then it could be because the blower motor for the fan or a switch or resistor that controls fan speed isn't working. Another cause might be that the electronically controlled “blend doors” that direct air flow are stuck or broken.
What does a blown fan fuse look like?
Look at the fuse wire. If there is a visible gap in the wire or a dark or metallic smear inside the glass then the fuse is blown and needs to be replaced.
What happens when a blower motor relay goes bad?
If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.
Where is the blower motor fuse and relay?
Under the instrument panel, look under the glove box. On the right side of the fender wall you will find another fuse box. The blower motor fuse is easy to replace.
Where is the HVAC fuse located?
Use a voltmeter to check for blown fuses Start by first locating the air conditioner's fuse. As mentioned earlier, it's in the disconnection box. The box is usually grey and right next to your outdoor unit. Open the disconnection box to expose the cables inside.
What causes heater blower not working?
If little air is coming through the vents (hot or cold), then it could be because the blower motor for the fan or a switch or resistor that controls fan speed isn't working. Another cause might be that the electronically controlled “blend doors” that direct air flow are stuck or broken.
What happens when a blower motor relay goes bad?
If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.
Where is the blower motor relay?
The blower motor relay is generally located in the under-hood fuse box or in the under-dash fuse box. A blown fuse can mimic relay failure. A failed blower motor switch can also give many of the same symptoms.
Is there a fuse for the heater blower motor?
Many vehicles have two fuses for the blower motor, one in the interior fuse block and the other under the hood. The blower motor is usually under the dashboard on the passenger side.
What makes heater stop working in a car?
A heater can stop working for a number of reasons, including: A low antifreeze/water level in the radiator due to a leak in the cooling system. A bad thermostat that isn't allowing the engine to properly warm up. A blower fan that isn't working properly.
Why has my car heater stopped working?
In most cases, car heater issues fall under two headings: There could be a blockage or other problem stopping heated antifreeze from moving through the heater core component. A valve or switch could be faulty, or the heater core could be a clogged.
Why did my heater stop working?
Dirty and clogged filters are one of the primary causes of furnace problems and can cause high operating costs. The heat exchanger can overheat and shut off quickly when filters are clogged with dust and dirt. This also causes soot buildup on the heat exchanger, which makes your furnace run less efficiently.
Where is the blower motor reset button?
Locate the reset button on the furnace and press it to reset the furnace. It is usually located inside the blower compartment on the side of the blower motor. Be cautious as the housing may be hot. If the button is popped up, press it down.
How do you remove a fan fuse?
Use a pair of tweezers or a small plastic spudger to remove the fuse from the fuse casing. Remove the end nearer to the fan body first, then the end nearer to the plug end. The replacement fuse must be 2.5 amp, 125 volt. Do not push against the glass center of the fuse, only the metal end pieces.
How do you know if it's the blower motor or resistor?
Typically, if the fan will work on some speeds but not on others, the resistor is suspect. Okay, let's say there's no melting going on, but your fan doesn't work on all speeds. Typically, if the fan will work on some speeds but not on others, the resistor is suspect.
What happens when the blower motor resistor goes out?
No Air Coming From Vents The blower motor resistor controls the power to the system's blower motor. When it fails, it can cut off all power to the motor. When the blower motor doesn't get power, air pressure can't be produced. You are left with a heater or air conditioner with nothing coming out of the vents.
How can I tell if a relay is bad?
You want to feel and listen for any clicks. If you feel and hear clicks, the relay works on one side – the side with the energizing circuit and coil. However, if there was no sound from the horn, the relay has a problem along the contact circuit.
Does the blower motor resistor control heat?
The blower motor resistor is an electrical component that is a part of the vehicle's heating and air conditioning system. It is responsible for controlling the blower motor's fan speed.
Where is the fuse for the heater fuse?
the heater fuse/relay is behind the kick panel on the p/s of the car (kick panel is the panel under the dash and between the door and firewall) also while you are down in that area check to make sure the blower motor is getting voltage aka bad blower motor) I think it's actually a 30A circuit breaker instead of a fuse.
Where is the fuse for the windshield wipers located?
The fuse block is located in the engine compartment on the left-hand side of the vehicle when viewed in the direction of travel. Make sure that the windshield wipers are turned off. Open the hood. Use a dry cloth to remove any moisture from the fuse box. To open: remove lines (2) from the guides. Move lines (2) aside.
Where is the fuse block located on a 2001 Chevy Silverado?
The fuse block is located in the engine compartment on the left-hand side of the vehicle when viewed in the direction of travel. Make sure that the windshield wipers are turned off.
Where can I find the fuse rating on my Mercedes-Benz vehicle?
The fuse ratings are listed in the fuse allocation chart. The fuse allocation chart is located in the vehicle tool kit in the storage compartment under the trunk/cargo compartment floor. If a newly inserted fuse also blows, have the cause traced and rectified at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.
Below you will find two interesting articles on a similar topic 👇
How does a blower motor relay work?What causes blown fuse on HVAC?
