Which is the hot wire on a radiator fan?
Which is the hot wire on a radiator fan?
Place a jumper wire across the terminal that had power with the key off and the terminal that was dead and did not go to ground. This is the fan hot wire. Set the voltmeter to volts and check the fan wires to see which of the two is the power wire. Mark this wire or remember which one it is. Disconnect the negative cable to the battery.
What should the ground signal be on an electric fan?
The temperature sender, if used, is designed to provide a ground signal at about 185 degrees, and will shut back off when the temperature drops below 165 degrees. This wire (gray in our kit) supplies the ground signal to trigger the relay. The orange wire on the relay should see a 12 volt signal when the ignition switch is turned on.
Where does the ground come from on a Hyundai radiator?
The ECM then provides ground to the control coil on the condenser fan relay. The condenser fan relay provides power to the condenser fan. Both fans ground receive ground at G109 located on the right radiator support.
What kind of wire is used to turn on a fan?
SIGNAL CIRCUIT 12V SWITCHED (IGNITION OR FUSE PANEL) Power “ON” when key is in the “RUN” position. 1ST RELAY TURNS ON FAN WHEN TEMP SENSOR IS ACTIVATED BATTERY 86 30 87 85 12V SWITCHED WIRE TO GREEN WIRE AT A/C CLUTCH. NOTE: OR IN AN ’84 TO ‘89 240 YOU MAY USE THE A/C POWER ‘ON’ WIRE: RED/WHITE WIRE AT AC SWITCH MICROSWITCH IN DASH.
Place a jumper wire across the terminal that had power with the key off and the terminal that was dead and did not go to ground. This is the fan hot wire. Set the voltmeter to volts and check the fan wires to see which of the two is the power wire. Mark this wire or remember which one it is. Disconnect the negative cable to the battery.
The temperature sender, if used, is designed to provide a ground signal at about 185 degrees, and will shut back off when the temperature drops below 165 degrees. This wire (gray in our kit) supplies the ground signal to trigger the relay. The orange wire on the relay should see a 12 volt signal when the ignition switch is turned on.
SIGNAL CIRCUIT 12V SWITCHED (IGNITION OR FUSE PANEL) Power “ON” when key is in the “RUN” position. 1ST RELAY TURNS ON FAN WHEN TEMP SENSOR IS ACTIVATED BATTERY 86 30 87 85 12V SWITCHED WIRE TO GREEN WIRE AT A/C CLUTCH. NOTE: OR IN AN ’84 TO ‘89 240 YOU MAY USE THE A/C POWER ‘ON’ WIRE: RED/WHITE WIRE AT AC SWITCH MICROSWITCH IN DASH.
How big of a wire do I need for a fan?
RECOMMENDED WIRE SIZES: 8-10 GA: FAN POWER AND GROUND. 16-18 GA: ALL OTHERS. SIGNAL CIRCUIT 12V SWITCHED (IGNITION OR FUSE PANEL) Power “ON” when key is in the “RUN” position. 1ST RELAY TURNS ON FAN WHEN TEMP SENSOR IS ACTIVATED BATTERY 86 30 87 85 12V SWITCHED WIRE TO GREEN WIRE AT A/C CLUTCH.
