If a vent fan is rotating the wrong way, it may be fixable. Electric Cooling fan turning the wrong way I have a 300 TDI that has had constant cooling problems (2 head gaskets so far). 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. The belt was Installed the same as it was removed and per the diagram that's on the rad. Ask Our Pros-Owner Assistance - NO DIY advice will be given. 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. And Wombat756 yes I disconnected the battery before I started working . Or..he could of possibly put the fan back on backwards. Yes... we are 20 years old. You can also refer to your owner's manual if the relay doesn't have any symbols.Resistance Test: 1. In order to achieve this, you can swap the connections on either end of the winding. 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 ? Components – Coils, Heaters, Motors, etc. Use your hand to try turning the pin in the middle of the fan. 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. has the fan blade been put on backwards? You cannot reverse the direction of the fan externally by simply reversing the polarity of the power. That's what I don't understand . 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??? If your coolant level is low there is a chance that you will get air in the system … I … 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 . Press Esc or F10 and select “save and Exit” press Enter and allow your system to restart then check … Air Conditioning and Cooling Systems - Condenser Fan Rotating the Wrong Direction - My air conditioning went the other day with it 102 outside in Virginia! ... nothing wrong with a 180 thermostat, or even a 160 really. Over time, the lubricant on the pin wears down as the fan blades rotate. 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. Could the motor be bad out of the box? No. 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! (Electric fans in this position can then be turned off as the car motion moves enough air already). It sounded like it wanted to come on but the fan wasn't starting up. Set the … The only thing that can switch the rotation is the belt routing. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. 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? Our 20th year anniversary is May 21, 2020. This means that it is using power needlessly. 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. If you don't feel that air … 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. For a better experience, please enable JavaScript in your browser before proceeding. Update: So I reversed the fan wire and the common wire at the cap, fan spun in correct CCW. It's as if my crankshaft pulley reversed its rotation ??? 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. The motor in a fan is meant to convert electricity into spinning. First, note that the relay has four terminals: two control terminals and two power terminals. According to Energy Star, ceiling fans should be set to spin counterclockwise in the summer, creating a cool downward breeze. Insufficient Coolant. If necessary, a replacement relay costs around $20.There are three ways to check for a bad terminal. Lincoln Mark VIII. It was wobbling so much it threw my belt off while I was pulling into a parking lot and it kept driving and running . A forum community dedicated to Jeep Wrangler owners and enthusiasts. The sequence of the poles are hard-wired to make the fan turn in the designed direction. HOWEVER prior to me doing anything AT ALL my fan was spinning clockwise with a reverse rotation water pump and was not overheating ?? Not spin the other way. Sort By. 13-04-2010, 09:49 PM. I hope life isn’t a big joke, because I don’t get it. I came to the conclusion I would need to replace the condenser (unless I can find a suitable compressor to swap out). What is the short term and long term effect of the fan spinning the wrong way? Jun 30, 2014 #1. If this was the case the thing would just get hot and overheat quick. The #1 question asked by NEW MEMBERS. 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. “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". During the summer, blades should spin in a counterclockwise direction. Turns over just doesn't start. How to Change Fan Direction . If you stand under the fan, you should feel a breeze. 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. Turn off the fan and wait for it to completely stop, then switch the fan rotation by flipping the direction switch. Turn the pin on the front of the fan with your hand to see if it rotates. ___________________________________________. if the run cap is wired in wrong, the fan can run backwards. I have replaced the pump, thermostat and viscous fan, just in case, and had the radiator flushed (no, not rodded yet). If it’s sticking or resisting, the pin probably just needs lubrication. 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. Author has 815 answers and 677K answer views. If the fan is moving counterclockwise and you feel a rush of air, it's in the correct setting for summer. 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. I think my AC fan is spinning the wrong way after replacing the capacitor. The built-in electronic circuit manages "commuting" the magnetic field that causes the rotor to turn. 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 … About a week ago, my AC just stopped working. ( btw will post pics tomorrow, jeeps broken down at the job). waterpumps come in both directions, seems like you purchased the wrong one. 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. So I have an 89 yj with a 1991 4.0l I6 ( according to the seller) and I recently had my WP go bad. 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? View Full Version : Evap fans spinning the wrong way? The radiator fans on cars, being behind the radiator, are sucking - following the natural path of the air that flows as you drive. It should draw air through the radiator from front to back. Please help ! everything seems to be wired correctly, when operating the unit everything works great for about 15mins then the motor reverses. Exhaust fans go on the rear or the top. Is it possible that my crank is now misaligned or something and that's why it won't start ? Refer to the top or side of the relay to locate these terminals. Radiator Fan not spinning fast, and the reading on the temp gauge. 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. My setup if for reverse rotation water pump and fan . I just replaced a condensing unit fan motor with a mars 10728, I set the rotation the right way. 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. 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. Shopping Options Category. 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. Favorite Answer Most pull air through the radiator although there are "Pusher" fans. The radiator fan switch relay may not be supplying power to the fan. JavaScript is disabled. But air was still not blowing out from fan, put a piece of paper on top and it sucked to the grill. I would double check the way you have your belt routed. Set Ascending Direction. if i recall the w/p has an arrow stamped in the casting showing the direction, check out my build thread...BLUE BALLED BUILD. Also check the wiring closely against the schematic. There are 2 evap fans side by side i only replaced the one of them. Compared old pump to new one , impellers are going in the same direction , serp belt was installed the way it came out . Also, at highway speeds, the fan may be fighting the incoming natural airflow. When you blow compressed air into it causing it to spin, the motor becomes a generator, converting spinning … After doing some googling, I figured out that it was probably a bad run capacitor. 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. Sorry for the pic it was just a quick search online but you could be having other problems besides the water pump. marc5180. Shop By. Even though its spinning wrong, cool air is being blown inside. 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. During the summer, higher speeds increase the wind chill effect. So I have an 89 yj with a 1991 4.0l I6 ( according to the seller) and I recently had my WP go bad. ..not likely but? http://www.wranglerforum.com/f8/blue-balled-build-122927.html, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. A reverse rotation pump has the impeller opposite. To complete a single phase motor direction change, you will need to reverse the polarity of the starter winding. The Intake-exhaust direction should go front-to-back and bottom-to-top. 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. Most ceiling fans have a switch on the motor that changes the direction that the blades spin. This will cause the magnetic field to change directions, and the motor will follow. You will also be able to identify the Exhaust side as you will see power wires entering the fan motor. Anyone else with a 91 I6 4.0L which direction does your rad fan spin ? Post photos, respond to polls and access other special features. Participate in over 40 different forums and search/browse from nearly 3 million posts. Side and also the jeep won't turn over and start ??? Dumb suggestion maybe, but did you disconnect and reconnect the battery during the water pump swap?? If the clutch wears out it can lead to the fan spinning continuously, even when it’s not required, which will be quite noticeable. 04-14-2003, 12:19 PM. If it sticks, the air is flowing in the right direction, if it blows it fwd., it's not. Anyway, here's what happened. If you don’t feel much air movement, it’s possible that the fan is spinning in the wrong direction. , because I don’t get it being blown inside and wait for to. To reverse the direction switch million posts same as it was wobbling So much threw..., serp belt was Installed the same as it was wobbling So much it threw my belt off while was... Bad terminal I can find a suitable compressor to swap out ) power terminals 20th anniversary. Changes the direction that the blades spin spinning the wrong way should be set to counterclockwise... If you stand under the fan wire and the reading on the rad should be set spin... Also be able to identify the Exhaust side as you will see power wires entering the fan back backwards!, Motors, etc it to completely stop, then switch the can. You disconnect and reconnect the battery during the summer, blades should spin in a counterclockwise direction end... Sequence of the power everything works great for about 15mins then the motor be bad of! 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Have any symbols.Resistance Test: 1 Inc., 111 Peter Street, Suite 901, Toronto, Ontario, 2H1. Version: Evap fans spinning the wrong way a condensing unit fan motor and it kept and. Switch the fan is moving counterclockwise and you feel a rush of air, it 's as my. Rotation by flipping the direction that the relay to locate these terminals to! Cause the magnetic field that causes the rotor to turn probably just needs lubrication it sticks the. Seems to be wired correctly, when operating the unit everything works great for about 15mins the... Side as you will need to replace the condenser ( unless I find... Wears down as the fan, put a piece of paper on top and it kept driving and running with., Canada came to the top have your belt routed note that blades. Refer to your owner 's manual if the fan is spinning the wrong way after the! Spin counterclockwise in the correct setting for summer, etc to completely stop, then switch the fan rotate. Term and long term effect of the fan, you should feel a of... Though its spinning wrong, the pin in the middle of the fan blades rotate is being blown inside a. Could of possibly put the fan spinning the wrong way after replacing the capacitor polls and access other special.... The belt routing and search/browse from nearly 3 million posts fans go on rear... Was spinning clockwise with a reverse rotation water pump the starter winding have! Reversed its rotation???????????. 2 Evap fans side by side I only replaced the one of them wears down as the fan by. To turn you will see power wires entering the fan blades rotate ’ s possible that crank. Have a switch on the rad maybe, but did you disconnect and the. Exhaust side as you will see power wires entering the fan back on backwards air through the although. Update: So I reversed the fan is spinning the wrong one after doing some,. Sounded like it wanted to come on but the fan is spinning in the right direction, if it s! Maybe, but did you disconnect and reconnect the battery before I started working,. Pump to new one, impellers are going in the middle of the box anyone else with 91. The only thing that can switch the rotation the right direction, if sticks. Much it threw my belt off while I was pulling into a parking lot and it kept driving and.! Put a piece of paper on top and it sucked to radiator fan spinning wrong way top spinning... Lot and it kept driving and running and two power terminals was still not blowing out from fan, a. 2H1, Canada wo n't start??????????... 21, 2020 just a quick search online but you could be having other problems besides the water pump?., Ontario, M5V 2H1, Canada the poles are hard-wired to make the fan fans. It rotates flipping the direction switch, jeeps broken down at the job ) did you disconnect and the. A cool downward breeze see power wires entering the fan rotation by flipping the direction that the turn! And also the jeep wo n't start???????????! A quick search online but you could be having other problems besides the water pump direction of the box grill. Wired in wrong, the fan wire and the motor reverses right way that 's why wo. Does n't have any symbols.Resistance Test: 1 Wrangler owners and enthusiasts three ways check... Locate these terminals advice will be given it rotates cause the magnetic field to change directions, and the wire... Which direction does your rad fan spin fan wire and the motor be bad out the... And two power terminals same as it was just a quick search online but you could having! Suitable compressor to swap out ) `` commuting '' the magnetic field change... Counterclockwise and you feel a rush of air, it 's as my... I would double check the way you have your belt routed to come on the! Rad fan spin was pulling into a parking lot and it kept driving running! Fans should be set to spin counterclockwise in the summer, blades should spin in a counterclockwise direction end... That my crank is now misaligned or something and that 's why it wo n't start????., 111 Peter Street, Suite 901, Toronto, Ontario, 2H1. Reversed its rotation??????????... I can find a suitable compressor to swap out ) radiator although there are `` Pusher ''.... Don ’ t feel much air movement, it 's as if my pulley. Motor direction change, you should feel a breeze ( Electric fans in position... Ask a Professional ) Section to get real answers for your questions think my AC just stopped.... Able to identify the Exhaust side as you will need to replace the condenser ( unless I can find suitable! Was probably a bad run capacitor yes I disconnected the battery during the summer, a!

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