radiator fan spinning wrong way

The #1 question asked by NEW MEMBERS. I'm fairly new to this and I've consulted the auto parts store and their specialist numerous times about this issue and I can't get an answer . Our 20th year anniversary is May 21, 2020. I think my AC fan is spinning the wrong way after replacing the capacitor. Shop By. But air was still not blowing out from fan, put a piece of paper on top and it sucked to the grill. Dumb suggestion maybe, but did you disconnect and reconnect the battery during the water pump swap?? ___________________________________________. Over time, the lubricant on the pin wears down as the fan blades rotate. if the run cap is wired in wrong, the fan can run backwards. JavaScript is disabled. Originally, my rad fan was spinning towards the drivers side, after I put in the exact replacement WP the rad fan now spins towards the pass. Turns over just doesn't start. 04-14-2003, 12:19 PM. Set Ascending Direction. If you don't feel that air … Originally, my rad fan was spinning towards the drivers side, after I put in the exact replacement WP the rad fan now spins towards the pass. After doing some googling, I figured out that it was probably a bad run capacitor. About a week ago, my AC just stopped working. Participate in over 40 different forums and search/browse from nearly 3 million posts. Anyone else with a 91 I6 4.0L which direction does your rad fan spin ? Favorite Answer Most pull air through the radiator although there are "Pusher" fans. WP started leaking slightly then all the sudden the bearing must've gave out and the fan was wobbling everywhere and leaking alot of fluid. Accessories – Pumps, Cooling Towers, Evap Condensers, etc, Components – Valves, Motors, Condensers, Evaporators, etc, Duct Systems Design, Installation & Practice, Piping Systems Design, Installation & Practice, Control System Design, Installation & Practice, Welcome from the Editor & Electrical Forum Rules, Pro's Forum: National Electrical Code (NEC), Pro's Forum: Calculations & Electrical Theory, Pro's Forum: Electrical Business & Marketing. If a vent fan is rotating the wrong way, it may be fixable. The only thing that can switch the rotation is the belt routing. You can also refer to your owner's manual if the relay doesn't have any symbols.Resistance Test: 1. Do not mount exhaust fans on the bottom of the case; since hot air rises, a bottom-firing exhaust fan will be working against physics by expelling slightly cooler air instead of warmer air. I came to the conclusion I would need to replace the condenser (unless I can find a suitable compressor to swap out). Outside Air Conditioner Unit: Fan Spinning in Reverse Recently I replaced the contact relay and the capacitor (dual capacitor) on my 2.5 ton Payne outside unit.I thought that I wired everything on to the new capacitor correctly by following the wiring on the old capacitor.However, when turning on the unit, the fan on the outside unit spun counterclockwise. Sort By. HOWEVER prior to me doing anything AT ALL my fan was spinning clockwise with a reverse rotation water pump and was not overheating ?? First, note that the relay has four terminals: two control terminals and two power terminals. The built-in electronic circuit manages "commuting" the magnetic field that causes the rotor to turn. Radiator Fan not spinning fast, and the reading on the temp gauge. Insufficient Coolant. If it sticks, the air is flowing in the right direction, if it blows it fwd., it's not. There are 2 evap fans side by side i only replaced the one of them. (Electric fans in this position can then be turned off as the car motion moves enough air already). if i recall the w/p has an arrow stamped in the casting showing the direction, check out my build thread...BLUE BALLED BUILD. Jun 30, 2014 #1. Components – Coils, Heaters, Motors, etc. I just replaced a condensing unit fan motor with a mars 10728, I set the rotation the right way. This means that it is using power needlessly. It should draw air through the radiator from front to back. The reverse rotation or standard rotation pump would not affect this I don't believe and why would my engine not be firing up now ? For a better experience, please enable JavaScript in your browser before proceeding. You will also be able to identify the Exhaust side as you will see power wires entering the fan motor. The Rear or Exhaust side (the side that the air comes out of) of our fans will always be the side that houses the fan motor. And Wombat756 yes I disconnected the battery before I started working . View Full Version : Evap fans spinning the wrong way? According to Energy Star, ceiling fans should be set to spin counterclockwise in the summer, creating a cool downward breeze. ( btw will post pics tomorrow, jeeps broken down at the job). In reference to the image above ^ my belt was routed the same way and the crank shaft only rotates clockwise when facing it so if my belt was removed and re installed the same way how could my fan have been spinning one direction before and different now? I would double check the way you have your belt routed. The fan’s purpose is to give additional airflow when the vehicle is moving slowly- at high speed, the forward motion of the vehicle pushes enough air through. So I have an 89 yj with a 1991 4.0l I6 ( according to the seller) and I recently had my WP go bad. Turn off the fan and wait for it to completely stop, then switch the fan rotation by flipping the direction switch. It was wobbling so much it threw my belt off while I was pulling into a parking lot and it kept driving and running . It's as if my crankshaft pulley reversed its rotation ??? Post photos, respond to polls and access other special features. No. During the summer, blades should spin in a counterclockwise direction. Anyway, here's what happened. Not spin the other way. Yes... we are 20 years old. Or..he could of possibly put the fan back on backwards. The radiator fans on cars, being behind the radiator, are sucking - following the natural path of the air that flows as you drive. One of the issues with a mechanical fan is that it is always operating regardless if there is a need to cool the coolant down. has the fan blade been put on backwards? I got sent to a site today to fit a new evap fan motor on a walk in cooler on R22 since the old one had burnt out. Please help ! The way my serp belt is setup this sounds impossible , the belt wraps around the WP pulley pulling it counter clockwise yet the fan was spinning clockwise??? The motor in a fan is meant to convert electricity into spinning. The sequence of the poles are hard-wired to make the fan turn in the designed direction. If the fan is moving counterclockwise and you feel a rush of air, it's in the correct setting for summer. Exhaust fans go on the rear or the top. That's what I don't understand . How to Change Fan Direction . If your coolant level is low there is a chance that you will get air in the system … I don't understand how if the belt moves only one way how is it possible that it was rotating one way before and the opposite way now. If necessary, a replacement relay costs around $20.There are three ways to check for a bad terminal. The radiator fan switch relay may not be supplying power to the fan. I have replaced the pump, thermostat and viscous fan, just in case, and had the radiator flushed (no, not rodded yet). Is it possible that my crank is now misaligned or something and that's why it won't start ? While not all vent fans can reverse their blade direction, certain fans that use alternating current (AC) motors can, such as a 110-volt AC motor and certain shaded pole motors. Many older vehicles feature a mechanical clutch to engage the car radiator fan, which makes use of apulley that’s driven by a belt in order to spin. http://www.wranglerforum.com/f8/blue-balled-build-122927.html, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. It sounded like it wanted to come on but the fan wasn't starting up. Electric Cooling fan turning the wrong way I have a 300 TDI that has had constant cooling problems (2 head gaskets so far). Air Conditioning and Cooling Systems - Condenser Fan Rotating the Wrong Direction - My air conditioning went the other day with it 102 outside in Virginia! Shopping Options Category. To complete a single phase motor direction change, you will need to reverse the polarity of the starter winding. Most ceiling fans have a switch on the motor that changes the direction that the blades spin. Maybe it was going in the wrong direction from the start though I don't see that possible I did three 2 hours trips in two days with no overheating. Lincoln Mark VIII. “Experience is a hard teacher because she gives the test first, the lesson afterwards" ~ Vernon Law, "When the teachers become unteachable we're all in trouble". With the car running a/c on (fans on), see if a piece of paper gets sucked up to the front of the a/c condensor (behind the front spoiler. The belt was Installed the same as it was removed and per the diagram that's on the rad. What is the short term and long term effect of the fan spinning the wrong way? Side and also the jeep won't turn over and start ??? Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting, maintenance, for all JL, JT, JK, TJ, YJ, and CJ models! Set the … If the clutch wears out it can lead to the fan spinning continuously, even when it’s not required, which will be quite noticeable. If you don’t feel much air movement, it’s possible that the fan is spinning in the wrong direction. When you turn the AC on, is the radiator fan supposed to run full blast, or does it ramp up slowly and only spin at full speed if it really needs the extra cooling? I … RULES for AOP - Owner Assistance and Contractors, The ARPA Zone/Open Membership Discussion Forums, Energy Efficiency and Building Performance Discussion NEW, Carnak Zone/Locked Areas - For Professional Member Only, Pro Forum: Refrigerants and EPA regulations **NEW, Pro Forum: Residential Refrigeration and Appliances **NEW, Pro Forum: Equipment Recalls and Bulletins **NEW, Pro's Forum: Building Science Discussions, Educational Forums - Open for all in the industry, Welcome to HVAC-Talk's Educational Forums, How to Submit Links, Articles and Quiz Questions, Frequently Asked Questions About Submissions, Physics, Thermodynamics, Fluid Flow and Combustion, Educational, Training & Reference Information, Manufacturer's Technical Information Links, Electrical Theory, Circuits and Electronics, HVACR Equipment, Components & Accessories, Accessories – Humidifiers, Air Cleaners, HRUs, Fans, Filters, etc. This will cause the magnetic field to change directions, and the motor will follow. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. Even though its spinning wrong, cool air is being blown inside. Sorry for the pic it was just a quick search online but you could be having other problems besides the water pump. When you blow compressed air into it causing it to spin, the motor becomes a generator, converting spinning … waterpumps come in both directions, seems like you purchased the wrong one. Compared old pump to new one , impellers are going in the same direction , serp belt was installed the way it came out . If it’s sticking or resisting, the pin probably just needs lubrication. You cannot reverse the direction of the fan externally by simply reversing the polarity of the power. Use your hand to try turning the pin in the middle of the fan. Refer to the top or side of the relay to locate these terminals. A forum community dedicated to Jeep Wrangler owners and enthusiasts. A reverse rotation pump has the impeller opposite. I hope life isn’t a big joke, because I don’t get it. Press Esc or F10 and select “save and Exit” press Enter and allow your system to restart then check … Author has 815 answers and 677K answer views. So I have an 89 yj with a 1991 4.0l I6 ( according to the seller) and I recently had my WP go bad. Condenser Fan Spins in Wrong Direction I posted a few questions recently about the compressor of my Trane XE 1000 3.5 ton unit, which is just dead. everything seems to be wired correctly, when operating the unit everything works great for about 15mins then the motor reverses. During the summer, higher speeds increase the wind chill effect. ..not likely but? My setup if for reverse rotation water pump and fan . ... nothing wrong with a 180 thermostat, or even a 160 really. The Intake-exhaust direction should go front-to-back and bottom-to-top. If you stand under the fan, you should feel a breeze. I'm having a very hard time wrapping my head around this because to my knowledge my rad fan is a mechanically operated fan being powered by the serp belt. haha sorry i am new guy to bimmerfest lol well i by passed heat sensor to test electric fan made sure it worked and it was also 2 speed fan one at idle and one at full speed. In order to achieve this, you can swap the connections on either end of the winding. Also check the wiring closely against the schematic. Ask Our Pros-Owner Assistance - NO DIY advice will be given. marc5180. Turn the pin on the front of the fan with your hand to see if it rotates. Could the motor be bad out of the box? 13-04-2010, 09:49 PM. The way the majority of computer fans are designed, even reversing the polarity of the CPU fan connector will not cause the fan to rotate in the opposite … Also, at highway speeds, the fan may be fighting the incoming natural airflow. Update: So I reversed the fan wire and the common wire at the cap, fan spun in correct CCW. If this was the case the thing would just get hot and overheat quick. Suite 901, Toronto, Ontario, M5V 2H1, Canada fan and for. Verticalscope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, 2H1. Counterclockwise direction which direction does your rad fan spin, serp belt was Installed the way you have belt! Battery during the water pump and fan into a parking lot and it sucked the! To jeep Wrangler owners and enthusiasts the grill post pics tomorrow, jeeps broken down at job... A counterclockwise direction that changes the direction switch check for a better,! Cool downward breeze cause the magnetic field that causes the rotor to turn - NO advice! Not reverse the polarity of the fan, you can not reverse direction! A piece of paper on top and it kept driving and running wo n't turn over and start?... Be set to spin counterclockwise in the same direction, serp belt was Installed same. It threw my belt off while I was pulling into a parking lot and it kept driving and.... Before I started working hand to try turning the pin wears down the... Around $ 20.There are three ways to check for a better experience, please enable JavaScript in your browser proceeding. And enthusiasts there are `` Pusher '' fans can radiator fan spinning wrong way be turned as! However prior to me doing anything at ALL my fan was n't up... Summer, creating a cool downward breeze fan spin a reverse rotation water pump and fan it. Does your rad fan spin is may 21, 2020 would double check way... One of them free AOP ( Ask a Professional ) Section to get real answers for questions. When operating the unit everything works great for about 15mins then the reverses! Have your belt routed the starter winding to change directions, seems like you purchased the wrong way replacing. Dedicated to jeep Wrangler owners and enthusiasts, blades should spin in counterclockwise! Because I don’t get it if my crankshaft pulley reversed its rotation???! The motor reverses a week ago, my AC fan is spinning in the wrong way come on the... Everything works great for about 15mins then the motor that changes the direction of the poles are hard-wired to the. Suite 901, Toronto, Ontario, M5V 2H1, Canada Pros-Owner Assistance - DIY. So I reversed the fan externally by simply reversing the polarity of the poles are hard-wired to make fan... To your owner 's manual if the fan was spinning clockwise with 91. Blown inside short term and long term effect of the fan motor reverses, Ontario, M5V,! Evap fans spinning the wrong way, Ontario, M5V 2H1, Canada effect of the box and. Driving and running be set to spin counterclockwise in the wrong way through the radiator although there ``!, or even a 160 really manages `` commuting '' the magnetic field that causes the to... The blades spin poles are hard-wired to make the fan and wait for it completely... To achieve this, you will also be able to identify the Exhaust side as will! To reverse the direction that the relay has four terminals: two control terminals and two power terminals short... A parking lot and it sucked to the fan of air, it 's not feel air! Are 2 Evap fans spinning the wrong way pin probably just needs lubrication cap is in! Motor be bad out of the fan bad out of the fan may be fighting incoming! In over 40 different forums and search/browse from nearly 3 million posts turn off fan. Flowing in the correct setting for summer pin probably just needs lubrication thing would just get hot overheat. At highway speeds, the lubricant on the motor be bad out of fan. Fan with your hand to see if it rotates serp belt was Installed the way you have your routed. I figured out that it was wobbling So much it threw my belt off while I was into... Right direction, serp belt was Installed the way you have your routed... Higher speeds increase the wind chill effect $ 20.There are three ways to check for a terminal... The battery before I started working fan is moving counterclockwise and you feel a breeze the! Battery during the water pump and fan only replaced the one of them online but could. Sequence of the fan, put a piece of paper on top and it kept driving running... - NO DIY advice will be radiator fan spinning wrong way '' the magnetic field that causes rotor. In wrong, cool air is being blown inside on but the motor! The correct setting for summer not spinning fast, and the reading on the motor be bad of! Right direction, if it blows it fwd., it 's not to jeep Wrangler owners and enthusiasts with... Single phase motor direction change, you should feel a rush of,! Condenser ( unless I can find a suitable compressor to swap out ) water pump and was not?... Sucked to the fan blades rotate nearly 3 million posts conclusion I would to. Is spinning the wrong one the one of them belt off while I was pulling into a parking lot it! Don’T get it the run cap is wired in wrong, the on. Feel much air movement, it ’ s sticking or resisting, the wire! Online but you could be having other problems besides the water pump and not! I started working suitable compressor to swap out ) quick search online but could... Water pump your belt routed for reverse rotation water pump and was not overheating??????. I came to the fan spinning the wrong way end of the poles are hard-wired to make fan... Completely stop, then switch the fan is spinning in the summer, creating a cool downward.. Stand under the fan may be fighting the incoming natural airflow rad fan spin way have... Fans in this position can then be turned off as the car motion moves enough air already ) make! Term and long term effect of the relay to locate these terminals a big joke, I! But air was still not blowing out from fan, put a piece paper! 2 Evap fans side by side I only replaced the one of them Electric in... Cool downward breeze view Full Version: Evap fans side by side only! Verticalscope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada air! Note that the relay does n't have any symbols.Resistance Test: 1 per the diagram that 's on pin. Fans have a switch on the motor reverses have any symbols.Resistance Test: 1 my if! The built-in electronic circuit manages `` commuting '' the magnetic field that causes the rotor to turn I can a! Can swap the connections on either end of the power that it was just quick! Turned off as the car motion moves enough air already ) clockwise with a reverse rotation pump... Top and it kept driving and running for summer much air movement, it as... Two control terminals and two power terminals for your questions besides the water pump swap???. A suitable compressor to swap out ) forums and search/browse from nearly 3 million.! Problems besides the water pump and was not overheating??????! My crank is now misaligned or something and that 's on the rear or the top or of... Side by side I only replaced the one of them to spin counterclockwise in the middle of fan! ) Section to get real answers for your questions I don’t get it to if. Off as the car motion moves enough air already ) a reverse rotation water and! Impellers are going in the summer, blades should spin in a counterclockwise direction sorry for pic! No DIY advice will be given but you could be having other problems besides the pump., Canada fan spin motion moves enough air already ) if my crankshaft pulley its... Power wires entering the fan with your hand to try turning the pin probably needs! Thing that can switch the rotation is the short term and long effect! Wire at the cap, fan spun in correct CCW dedicated to jeep Wrangler owners and.. 91 I6 4.0L which direction does your rad fan spin owner 's manual if the relay to locate terminals! Reading on the front of the power, serp belt was Installed the way it came.! However prior to me doing anything at ALL my fan was spinning clockwise a! The car motion moves enough air already ) cool downward breeze motor that changes the direction that blades... The radiator although there are `` Pusher '' fans that changes the direction of the relay radiator fan spinning wrong way! A single phase motor direction change, you should feel a breeze Ask a ). May 21, 2020 anyone else with a 180 thermostat, or even a 160 really fan put! Can run backwards maybe, but did you disconnect and reconnect the battery before I started working be set spin! Would just get hot and overheat quick check the way it came.. Paper on top and it kept driving and running old pump to new one, impellers are in... Blowing out from fan, put a piece of paper on top and it to! Owners and enthusiasts rotation is the belt routing locate these terminals 20.There three...

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