The relay for a heater fan is typically a small, rectangular or square-shaped component, often made of plastic or metal. It usually has several electrical terminals on one side for connections, which may be labeled for easy identification. The body may be black or gray, and it often features a part number or manufacturer logo. In some cases, it might be encased in a plastic housing for protection.
The heater fan relay switch can be found on the firewall in the engine compartment. The relay switch will be on the passenger side of the firewall.
The 2002 Chevrolet trailblazer heater fan relay switch is located behind the dashboard. The relay switch will be on the drivers side of the vehicle.
If you don't have power to your heater or ac fan, it could be a fuse or a relay. You should check your owner's manual to determine which fuse or relay affects your fan.
were is the heater relay on1996 jimmy?
Under hood fuse panel box. It is labled "Cooling Fan". To easily check it,swap it out with the "heater blower fan" relay and see if the heater blower works. Both relay's are made the same.
Fan (heater/air conditioning) relay switch
Could be a Faulty relay.
A fan interlock relay can be used to prevent the electric heater from being energized when the fan is not running. This relay will only allow power to the heater when the fan is operating, ensuring that the heater cannot operate independently.
Fuse-switch-bad connection-blower relay-fan motor. I would check the fuse then look at the blower relay. they go out quite offen on Dodges
Your relay has melded itself. Which means that there is a direct current at all times going to the heater fan motor. Remove the existing relay and replace with a new one.
The heater/AC fan has no relay just a switch. The Radiator fan relay is mounted next to the battery. It has 2 plugs and starts based on radiator temp and AC pressure.
Swap the fan relay with another like relay.