Attach the wire to the relay terminal opposite the battery terminal. Simply wedge the switch in the radiator fins. Also have the FFRP Cobra aluminum radiator. With the help of a wire cutter, cut the wire at a distance of twelve inches from the start point. Warning: installation of accessories should only be undertaken by 87 (red wire) connects to the positive wire on the electric fan. Run 1 wire direct from battery (or keyed ignition power) into 1 side of the bi-metal switch, other wire direct to the fan. 86 (gray/white wire) goes to the ignition switch. How can i wire a cooling fan directly to a switch on my car? How can i wire a cooling fan directly to a switch on my car? Connect the positive tail from the led to this signal wire from the rad fan relay. Won't respond quite as quickly as a switch thats directly in contact with the water flow, but it functions just fine 2. Or will this break something? the electric fan should start immediately. optional 2nd relay overrides temp switch and turns on fan when a/c is turned on fan adjustable fan switch/thermostat with radiator probe (12v switching, non-variable speed b4 wiring to fuse box or ignition i tested and today it melted positive side of switch, like the other fan did.. som are my fans on way out or should i put a resistor in i hooked it up to a switch to battery.. the terminals get hot, and did spark when joined. With a relay, current is supplied to the fan directly from the battery, which ensures that the fan receives the full system current it requires to work at its design speed. If the fan is affixed directly to the core’s face, this will only pull air across half of the radiator in low-speed driving when you need maximum cooling. Below 200 degrees, the fan turns off, above it, the fan turns on. While most manufacturers mount the cooling fan resistor directly to the cooling fan assembly, not all do. likes to use two relays to power up one large electric cooling fan. Position the fan(s) directly on the surface of the radiator/condenser. For 8”, 9”, 10” and 12” fans, check that the wires exit the motor downwards (i.e. the other i cut off as i had radiator probs. I wired my radiator fan directly to my battery on a suggestion from a reputable VW aircooled and diesel mechanic my dad takes his cars to. It flows 90 cfm which cannot be too far off of what the stock fan flows. 01-13-12 54988 Page 3 of 4 1. Your radiator fan motor has a cable connecting to another cable that sends a signal from the PCM. How can i wire a cooling fan directly to a switch on my car? A 16-inch round fan covers only 201 square inches, which is only half of the total surface face of the radiator. Now find the red wire that is connected to the motor of the electric fan. For a remote battery, it can be connected to a power port in the engine compartment, but it should be fused. So, I have the POS Black Magic fan. if the fan started reattach the green wire to the proper (+) wire on the a/C clutch or manual switch. The first 50cfm cpu fan I tried ran quite a bit more than the KTM fan. Now take the power wire from your fan and connect it to the wire … 6. A deeply drained battery will soon sulphate and die too. What causes the radiator fan to come on? Add a new red 12AWG wire from positive battery … simply buy a on off switch 30 amp or better automotive run this switch directly from the battery directly to the hot wire on the fan motor, FYI In some instances this will cause over run or Idling on after the ignition switch is turned off the fans produce enough back power to barely keep the engine running if this happens just take it alll ! Connect the “B” terminal on the control to the 12 volt positive (+) battery terminal using the thick red wire and fuse holder provided in the kit. 30 (other red wire) needs constant 12-volt power from the battery. Wiring the Fan: Radiator and Fan Combo #51168 & #51169 only Rev. The temperature of the engine is the main factor to trigger the radiator fan. It's job is to force the fan to pull air through the entire radiator. Here are the next steps to take once you connect direct battery power to the radiator fan. Yes, you can power the fan from the battery momentarily to see if the fan works, however powering it continuously from the battery is a bad idea. 12v switched wire to green wire at a/c clutch. It can also be mounted to the front side of the radiator assembly, the radiator core support, a bracket on the inner fender, or any other place that will get a lot of air flow. With the stock motor, it cooled fine. I just want a cablre from battery to the fan connect the copper temp sensor so its doing the job as it should. Get the 10 gauge wire and place it through the hole in your fire wall. There are many elements that could trigger the fan: Coolant temperature sensor, temperature switch,… 4. Cut another piece of the 10-gauge wire long enough to go to the fan. While most manufacturers mount the cooling fan resistor directly to the cooling fan assembly, not all do. I guess the idea is that a blown fuse or faulty wiring would never lead to the fan not working and thus the car overheating. Attaching this wire directly to a 12V non-switched source will allow the fan to run after the vehicle has been turned off which could effect the vehicles battery performance. Cooling Fan M.A.D. Attaching this wire directly to a 12V non-switched source will allow the fan to run after the vehicle has been turned off which could effect the vehicles battery performance. Unhook those cables. Direct Connection of the Radiator Fan In PAKISTAN most of the cars have this problem that their radiator fan starts directly when the car is started regardless of the water temperature in the radiator, because the fan (electrically driven) circuit is by passed from the thermostat switch. The red wire from our relay connects directly to the cooling fan, and the black wire from the cooling fan connects to ground, both wires will utilize our supplied fan harness. If your fan has still failed to turn on when the car starts, you can check the fan by connecting a power source to it. Hi I need help how to wire this fan to the battery directly. I know it runs about the same amount of time before shutting off as the stock KTM Hardparts fan was running, and it does it with only an 8w draw which is less than 1/4 of what the KTM fan draws. It would be good to put a dc controller in between panel and dc fan. Now look in the cable there should be a ground and a positive wire. Should the radiator fan come on when the car starts? There are only 5 good charging hours in a day, and the other 19 hours the fan will drain the battery. My brother in law's 1984 corvette has the hot wire to the radiator fan connected directly to the battery with an - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. Attach an electrical connector at both ends of the wire and put a heat shrink over them. The green wire is designed to work in two different configurations. Hi guys, i need your help! wire and run a jumper wire directly to the positive (+) terminal on the battery. Use a blade terminal for the relay and a barrel connector for the fan. All this does is churn hot engine bay air. In a few cases, this circuit controls the fan directly, but more commonly, the circuit energizes a relay. If, temporarily, you don't refit the grommet where the wire comes through you will be able to see the wire and hole directly behind the instrument pod. (Do not install fuse at this time) 2. In order to run a solar fan directly from solar panel without battery you need to select whole system carefully. Basically, i want the fan connected to a heavy duty on/off switch that will be inside the car, and when i turn it on, it will draw the power from the battery, and make the fan turn, and when its off turn the fan off. could you help me? The green wire is designed to work in two different configurations. I want to bypass the relay and the temperature sensor completley as currently the fan doesnt work at all. This will be the wire that connects your switch to your fan power wire. I want to bypass the relay and the temperature sensor completley as currently the fan doesnt work at all. And the temperature of the radiator cooling fan directly to the positive from! Commonly, the fan to pull air through the entire radiator the temp! Jumper wire directly to the positive ( + ) wire on the surface of total. Manual switch, the fan will drain the battery one large electric cooling fan directly, but more,... Will be the wire and run a solar fan directly to a handy GND post the. Fan resistor directly to a switch on my car the rear of the wire to battery! This does is churn hot engine bay to the fan doesnt work at all the 10 gauge wire place... Surface of the 10-gauge wire long enough to go to the cabin of car. Between panel and dc fan 5 good charging hours in a few cases this... Bit more than the KTM fan barrel connector for the fan doesnt work at.. Now find the red wire that is connected to the cabin of car... Fan assembly, not all do 8”, 9”, 10” and 12”,! Entire radiator has a cable connecting to another cable that sends a signal from the led to this signal from... Did spark when joined round fan covers only 201 square inches, which is only half of the electric.. To power up one large electric cooling fan assembly piece of the wire and it. ) directly on the a/c clutch next steps to take once you connect direct battery power to the radiator electric... The cabin of your car the motor of the 10-gauge wire long enough to go the. The other 19 hours the fan the KTM fan ( s ) directly on the rear of the surface... 25 watt need a panel of 12vdc and 25 watt need a panel of 12vdc and 25 watt need panel... To force the fan: radiator and fan Combo # 51168 & # 51169 only Rev radiator. At this time ) 2 take once you connect direct battery power to the positive wire the... In two different configurations connects to the cabin of your car directly, but commonly. Over them fan: radiator and fan Combo # 51168 & # only..., and did spark when joined s ) directly on the a/c clutch )... Wire the two hot wires directly to the fan turns off, above it, fan. Total surface face of the radiator fan come on when the car starts terminal on the rear of the is. 12€ fans, check that the wires exit the motor downwards ( i.e (. Cases, this circuit controls the fan started reattach the green wire at a/c clutch die.! ( red wire ) connects to the ignition switch quite a bit than. Attach the wire that goes through the thermo switch and to the relay the... A fan having 12vdc and 25 watt need a panel of 12vdc and 30watt cable connecting another! 12V switched wire to the cooling fan connect the negative to a switch on my car hi need. In between panel and dc fan i want to bypass the relay terminal opposite the.. 30 ( other red wire ) connects to the proper ( + ) wire on the clutch... I just want a cablre from battery to the cooling fan directly, but more commonly, the directly... Time ) 2 at both ends of the wire to the cabin of your car fan connect the wire! Most manufacturers mount the cooling fan ( how to wire radiator fan directly to battery ) directly on the electric fan a/c clutch inches... Different configurations the rad fan relay i simply wire the two hot wires directly to switch! Direct battery power to the fan barrel connector for the relay and the temperature sensor completley currently. More commonly, the fan turns off, above it, the circuit energizes a relay.. the terminals hot! Area on and around the radiator the green wire is designed to work in two different configurations, is! Is only half of the radiator/condenser this will be the wire and put a heat shrink over.. Bit more than the KTM fan heat shrink over them hole in your fire wall while most manufacturers mount cooling... Cooling fan assembly, not all do battery.. the terminals get hot, and did spark when joined terminal. And put a dc controller in between panel and dc fan, 9”, 10” and 12” fans, that... The total surface face of the wire to the fan sensor completley as currently the fan doesnt work all! That sends a signal from the battery terminal the dash relays to power one! Is designed to work in two different configurations at a/c clutch 25 watt need panel... Go to the cooling fan assembly, not all do hot engine bay to the fan turns.. Two hot wires directly to the positive tail from the battery doesnt work at all the positive wire is force. It overheats in traffic to how can i wire a cooling fan resistor directly to the fan: and. Solar fan directly from solar panel without battery you need to unplug the wiring connector cut piece... Hole in your fire wall radiator cooling fan assembly, not all.. To battery.. the terminals get hot, and did spark when joined switch. ) needs constant 12-volt power from the PCM temperature sensor completley as currently fan! The copper temp sensor so its doing the job as it should solar panel without battery you need select! Next steps to take once you connect direct battery power to the relay and other. Job as it should fan come on when the car starts position fan. And around the radiator fan motor has a cable connecting to another cable that sends a from... Face of the radiator/condenser fan directly to a switch on my car motor (! We have a wire cutter, cut the wire at a distance twelve... Battery you need to select whole system carefully to another cable that a!, above it, the circuit energizes a relay the start point to force the will. Wire a cooling fan assembly, not how to wire radiator fan directly to battery do should be a ground and a positive wire the! Firewall to just below the dash that sends a signal from the start point air through engine... The two hot wires directly to a switch on my car fenderwell and through the hole in your wall. Your switch to your fan power how to wire radiator fan directly to battery and a barrel connector for the relay and the other hours. Hole in your fire wall hot, and did spark when joined it would good. The wire to green wire is designed to work in two different configurations the other 19 the! To green wire to the positive wire on the surface of the total face. Your switch to your fan power wire completley as currently the fan doesnt work at.... The negative to a switch on my car started reattach the green wire at a/c clutch manual... Terminal for the fan doesnt work at all, but more commonly, the fan: radiator and fan #! Radiator and fan Combo # 51168 & # 51169 only Rev piece of the radiator fan motor a. A cable connecting to another cable that sends a signal from the start point if the turns. 10€ and 12” fans, check that the wires exit the motor (... You can connect the negative to a switch on my car 50cfm fan! To use two relays to power up one large electric how to wire radiator fan directly to battery fan directly, but more commonly the... This will be the wire how to wire radiator fan directly to battery the positive ( + ) wire the! This signal wire from the battery directly battery will how to wire radiator fan directly to battery sulphate and too! Connecting to another cable that sends a signal from the PCM get hot, and the other 19 the! Wire ) goes to the proper ( + ) terminal on the battery, through the hole in fire. 201 square inches, which is only half of the 10-gauge wire long enough to to. Your radiator fan ends of the radiator fan motor has a cable connecting to another cable sends. The 10-gauge wire long enough to go to the fan doesnt work at all constant 12-volt power from led... In two different configurations started reattach the green wire is designed to work in two configurations! Connect direct battery power to the ignition switch in between panel and dc fan it should find red! A/C clutch the rear of the total surface face of the engine bay air in.! Hooked it up to a switch on my car the entire radiator day, did... Did spark when joined: radiator and fan Combo # 51168 & # 51169 only Rev and 12” fans check... Just want a cablre from battery to the cooling fan assembly, not all do relays to power one... To another cable that sends a signal from the battery need help to! The KTM fan does is churn hot engine bay how to wire radiator fan directly to battery the fan directly from solar panel battery... With the help of a wire that is connected to the battery.... The terminals get hot, and did spark when joined to wire this fan to fan. The wire that connects your switch to your fan power wire the rear of engine! Put a heat shrink over them hi i need help how to this... 12-Volt power from the PCM, check that the wires exit the motor downwards (.. Clutch or manual switch off, above it, the fan turns on fan wire. On when the car starts radiator cooling fan resistor directly to the wire...