A fan or cooler relay is used in electrical furnace to change the blower speed to the blank speed for cooling
low
The furnace blower may not turn off due to a faulty thermostat, a malfunctioning limit switch, or a problem with the fan relay. It is important to have a professional HVAC technician inspect and repair the issue to ensure proper functioning of the furnace.
In an electric furnace, a fan relay typically changes the blower speed to a lower setting for cooling. This reduced speed helps to circulate air more gently, allowing for better heat dissipation and preventing overheating of the furnace components. By operating at a lower speed, the blower can provide effective cooling while maintaining comfort in the surrounding space.
Where is the blower motor relay at.
It is the relay for the heating and cooling fan
I think the blower motor relay is internal to the blower motor resistor which is located under the passenger side dash.
Not sure about the relay, but there is a blower resistor assembly located on the heater case to the right of the blower motor.
If the furnace itself is in the attic, the humming is likely caused by electrical components in the furnace--most likely, the blower motor, or else a transformer or relay coil. If the furnace is located elsewhere, the humming may be caused by a damper motor or possibly the air movement itself vibrating a damper or some sheet metal.The HVAC Veteran
where the relay for rear blower in Nissan quest 1997
Because it is connected (by a few wires if I'm not mistaken) to the blower motor.
Under or near your glovebox is your relay center. Blower motor relay is in there. Usually it is black