by changing it.
you do not have a relay for a fan belt. just change them.
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.
take it to a garage and get if fixed
In a 1993 Volvo 940, the fan relay is typically located in the engine compartment, near the fuse box. It is usually mounted on the driver's side, close to the battery. For precise identification, you may refer to the vehicle's manual, which provides a diagram of the relay and fuse layout.
The cooling fan relay switch can be located on the back of the cooling fan motor. The relay switch should be labeled as such.
"How do you replace the fan control switch on a 2002 Grand Prix?"
To replace the radiator in a 1994 Volvo 940, first, ensure the engine is cool and disconnect the battery. Drain the coolant by removing the drain plug at the bottom of the radiator and disconnect the upper and lower radiator hoses. Remove any mounting bolts and the fan shroud if necessary, then lift out the old radiator. Install the new radiator by reversing the removal steps, reconnect the hoses, refill the coolant, and check for leaks.
To replace a 3-speed fan switch, first turn off the power to the fan. Remove the fan cover and locate the switch. Unscrew the switch from the fan housing and disconnect the wires. Install the new switch by connecting the wires and screwing it back into place. Test the fan to ensure the new switch is working properly.
Under the dash on the right side just above the toes of the passenger's right foot.
You do not need any special tools to change out the auxiliary fan switch on a 1989 Volvo 780. The wrenches you normally use are sufficient.
To replace a ceiling fan pull chain switch for a 3-speed fan, follow these steps: Turn off the power to the fan at the circuit breaker. Remove the fan's light kit or housing to access the switch. Disconnect the wires from the old switch. Remove the old switch and replace it with a new one. Connect the wires to the new switch according to the wiring diagram. Reassemble the fan and turn the power back on to test the new switch.