2013 ram 2500 diesel blower motor go off and on move to fuse a little blower comes what wrong
Symptoms of a Bad or Failing Blower Motor Relay
The blower motor relay is the electrical switch that is used to supply the power for the vehicle's blower motor. The blower motor is the component responsible for pushing air through the vents of your vehicle'southward heating and air conditioning systems. Without it, the AC arrangement volition not be able to circulate any heated or cooled air. The blower motor relay controls the current used to power the blower motor, and is subject to the abiding on and off switching. Over time, information technology tin eventually vesture out. When the blower motor relay does begin to fail, the vehicle volition commonly display a few symptoms that alert the commuter of a potential problem that should exist serviced.
ane. Blower motor does not function
Ane of the first symptoms of a trouble with the blower motor relay is a blower motor that does not function at all. As the relay is the switch that supplies current to the blower motor, if it fails internally, and then power will be cut off from the blower motor circuit, causing the motor to no longer function or blow any air from the vents.
ii. Blown fuses
1 of the showtime symptoms of a bad or failing Ac blower motor relay is a blown Air-conditioning blower motor relay circuit fuse. 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.
3. Melted relay
Another more serious symptom of a problem with the blower motor relay is a burned or melted relay. Relays are exposed to high current loads and can sometimes get hot when they develop problems. In serious cases, the relays may heat up to the point where the interior components and plastic housing of the relay will begin to cook and burn - sometimes even causing damage to the fuse box or panel as well.
Since the blower motor relay is substantially the switch that direct controls power to the blower motor, the entire Air conditioning organisation volition exist left unable to distribute its cooled or heated air if the relay fails. For this reason, if you doubtable that your blower motor relay is having a problem, accept the vehicle'southward Air conditioning arrangement diagnosed by a professional technician from YourMechanic. They will be able to make up one's mind if the motorcar will need a blower motor relay replacement, or a different repair, to bring full functionality dorsum to your AC organisation.
The statements expressed to a higher place are only for informational purposes and should be independently verified. Please see our terms of service for more details
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Source: https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-blower-motor-relay
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