how to measure condenser fan blade

Finally, select the proper rotation based on your desired direction of airflow. Browse the 18” diameter fan blades and look at the HP ratings for 825 RPM. A CCW motor paired with a CW fan blade will pull air backwards – as will a CW motor paired with a CCW fan blade. 0000023812 00000 n An overview of the IO format and how the data is split into modules is found in the file pn-iomessage. Tear off a small piece of adhesive tape approximately 2 inches long and write "1" on it with your permanent marker. However, without the correct information, you can’t accurately replace the blade. EXAMPLE: You have a 1/10 HP motor with an 825 RPM rating and you’re looking for an 18” diameter condenser fan blade. What can be done. In this article, we'll show you the different fan types, the proper way to measure fan size, and the large variety of fans we sell in the Performance Cooling Fans section of our website. Turn 1/10 HP into a decimal to get 0.10 HP. This issue generally surfaces during summer, when the weather is hottest. 0000005346 00000 n The blade's pitch is the amount of twist the blade has on the hub, and can be measured using a pitch gauge. Begin by turning off the power to the A.C. unit. 0000032367 00000 n I need to order a new motor and a new fan to match the old motor. 0000624390 00000 n While fan blades are rated by diameter, best practice is to measure the radius by starting at the center of the condenser fan blade and measuring out to the outer tip. 0000036634 00000 n When replacing a condenser fan motor, it’s always advised to replace the condenser fan blade also. B1086756 - Goodman Replacement Condenser Fan Blade -3 x 18" CCW 4.5 out of 5 stars 46. 0000036356 00000 n The next step is measure the radius of your existing condenser fan blade. 0000001882 00000 n Simply take the radius and multiply it by two to give you the diameter. 0000004937 00000 n I have what is probably an ancient Ruud UAKA-018JAZ 1.5 ton A/C that crapped out on me this morning. 0000041584 00000 n Lau Heavy Duty Condenser Fan Blades Propeller Performance Charts. First, find the section of the chart that has your diameter. The condenser blade will be approximately 6" diameter. 0000724897 00000 n Siddy for Model Number FRS6LF7FW4. PROJECTED WIDTH (PITCH) With your fan engine side down on the floor/counter. 0000009280 00000 n Goodman B1086756S Fan Blade 4.5 out of 5 stars 36. $59.99. For a 4 bladed fan make sure opposite blades are equal, 1=3 and 2=4. Only 4 left in stock - order soon. Place the tape on the edge of the fan blades to mark which ones you have already measured. Start by confirming the issue is in fact a motor in need of replacement. I've been using the standard Align 325mm blades so I didn't even think about measuring the blade length. 0000049189 00000 n 0000002055 00000 n 0000135094 00000 n (I don't have ready access to the 'fridge to just measure it myself!) Measuring the radius of your fan blade. I don't think 5mm or so on the blade length will make that big a difference in the calculations. 0000031627 00000 n Required fields are marked *. Notice that the 23 degree pitch blade is rated for 0.103YOU’RE Your 0.10 HP motor comes in right under the 0.103 HP, so this would be the proper replacement blade for a 1/10 HP motor at 825 RPM. h�bbbd`b``Ń3�E� �� endstream endobj 113 0 obj <>/Metadata 6 0 R/PageLabels 3 0 R/Pages 5 0 R/StructTreeRoot 8 0 R/Type/Catalog/ViewerPreferences<>>> endobj 114 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/StructParents 0/TrimBox[9.0 9.0 603.0 783.0]/Type/Page>> endobj 115 0 obj <> endobj 116 0 obj <> endobj 117 0 obj [/ICCBased 129 0 R] endobj 118 0 obj <>stream If your HVAC system is getting power but your condenser fan is still not working, then you probably have a problem with the fan or motor, which will require the services of a professional HVAC technician. FAN PILOT Measure the opening of the center fan plate using a caliper. How to Fix a Broken Condenser Fan. 0000031974 00000 n Fortunately, this is a repair that can be done by non-professionals. 0000309023 00000 n 0000512219 00000 n I have what is probably an ancient Ruud UAKA-018JAZ 1.5 ton A/C that crapped out on me this morning. 0000007203 00000 n 0000004306 00000 n 0000130281 00000 n Assuming you can handle the fan, I'd be inclined to rest a ruler against the blade and use a protractor to measure the angle to the shaft (using my eyeball to line things up). The condenser fan motor assembly has a condenser fan motor, a fan blade, and an internal control system. By using these four items, you can have confidence in knowing that you selected the proper replacement condenser fan blade for your new condenser fan motor. 0000003601 00000 n 4. Might be accurate to a degree or so. It is always best to check the specs on the fan blade before replacing the condenser fan motor on any unit, and especially on older models. We'll also provide an overview of the different installation methods which are used, as well as steps involved with the actual install. It is commonly stated that "the steeper the blade pitch, the more air a fan will move" or "a good fan will have a blade pitch of 14 degrees or more". My refrigerator condenser fan was burned out, and it was so weak you could stop it with your hands, and over time it will stop working. $54.09. Step 3 Calculate the CFM (volumetric flow of air) at 1,200 rpm. $31.00 / EA QTY. Almost all motors have this information printed onto a sticker that’s attached to the side of the motor. 0000001707 00000 n 0000029240 00000 n 0000028772 00000 n Fans are easy a set screw holds the shaft or a hex nut make sure to get the same pitch and diameter they can … B1086756 - Goodman Replacement Condenser Fan Blade -3 x 18" CCW 4.4 out of 5 stars 39. to measure the stresses within the neck of a fan blade during operation. Also be aware of moving parts such as the fan blades. 0000024771 00000 n One of the fan blades broke off and messed up the interior surface of the housing. 0000002622 00000 n 0000020200 00000 n I've been using the standard Align 325mm blades so I didn't even think about measuring the blade length. 0000020314 00000 n $44.73. Blade pitch is the angle at which the blades are set relative to parallel to the ground. The motor is a Fasco d1701 motor and the unit is a weird unit used for an indoor pool room. The main thing to remember on a condenser fan motor is the main service issue is usually a bad capacitor. Position the bevel protractor on the fan blade near the tip on the concave side of the blade. 0000035054 00000 n Nice catch. 0000035453 00000 n Infrared Inspections and How They Can Prevent Costly Downtime, How-To: Tackle Condenser Fan Blade Replacement, propeller performance of heavy duty condenser fan blades. While fan blades are rated by diameter, best practice is to measure the radius by starting at the center of the condenser fan blade and measuring out to the outer tip. Reply: Ernest. The next step is measure the radius of your existing condenser fan blade. Can it be repaired? Checking The Rpm On A Condenser Fan Motor I was called out on a second opinion, and the guy reported that the motor was turning at 1,000, last year, and 700 this year. I was hoping that just replacing the fan blade would be enough to get my cool air back, but alas, no such luck. 0000413441 00000 n 0000313671 00000 n Measure the degree of pitch on the fan blade. To pull air back over the motor, you select the opposite rotation on the fan blade to the rotation of the fan motor. 0000419188 00000 n Another way of looking at it is that the fan is moving an 800-foot-long column of air that is 1 foot in diameter through space each minute. The motor is no good as well. If the motor is bad, measure the fan blade height to the finger guard before you ever remove it. Multiply the blade length by two and add that measurement to the hub diameter from step 3 to determine your total fan diameter. LA01EC018 - Carrier OEM Upgraded Replacement Condenser Motor Fan Blade 3.5 … %PDF-1.4 %���� How do i measure the fan to order it? The fan RPM should stabilize between 800 and 1000 RPM. Also you need to make sure the center hub of the fan you do get fits on the motor shaft. Simply take the radius and multiply it by two to give you the diameter. Available options range from 6 to 11 blades. I don't think 5mm or so on the blade length will make that big a difference in the calculations. Measure the opening of the center fan plate using a caliper. 0000409827 00000 n It’s important to note that shaft rotations are given from shaft end orientation. look close if some fins are a little bent that will reduce the efficiency but it will still work with a new fan. While fan blades are rated by diameter, best practice is to measure the radius by starting at the center of the condenser fan blade and measuring out to the outer tip. This 12,000 BTU universal heater is fully self contained, but compact in size. 0000654684 00000 n If you are removing the fan blades to find that the motor becomes "silent" three possibilities occur: 0000516877 00000 n If the fan pilot is lemon shaped (see photo 4a) your pilot will always measure 2.56”. 0000008614 00000 n ANSWER Siddy, We would not have the CFM rating for the fan motor on this unit. Yes, it is very important to have the proper distance from the blade to the motor. For many contractors that means replacing condenser fan blades. Don't forget any allen screws or bolts to hold fan onto motor shaft. Select the appropriate condenser fan blade or blower fan with options that include two to five blades, and propeller diameters from 10 inches to 28 inches. 0000006354 00000 n The HP at 1075 rpm is .17 which is slightly above the .16667 (1/6) … does this work? Just use it to measure the air flow before and after cleaning the condenser coil. Pitch is measured at the spider/lobe, not on the blade, and it's common for fan blades to have slightly different pitches and still achieve the same performance. $55.12. 0000035908 00000 n Nice catch. Pitch. As the engine is warming up: a. 112 0 obj <> endobj xref 112 56 0000000016 00000 n Here’s the reason why – condenser fan motors commonly fail when their bearings fail. Add To Cart Add to List. To push air forward, you need to match the rotation of the fan blade with the rotation of the fan motor. A CW motor paired with a CW fan blade will push air forward – as will a CCW motor paired with a CCW fan blade. Some ... With this one you just put a small piece of the reflective tape that comes with it on the blade hub or the end of the squirrel cage, then point and shoot. By replacing the condenser fan blade when you replace your condenser fan motor, you can rest assure that the fan blade is balanced properly and will rotate in a perfect circle. 18. Only 7 left in stock - order soon. My AC unit is an old Ruud, installed in 1981. One of the fan blades broke off and messed up the interior surface of the housing. Measure the distance from the floor/counter to the highest point of an undamaged blade. h�b``0a``{�����~�01�&$Q(f`Pebhi�*`� r�PU`��$ʐ������a�� �3��,LB�1��~�m�gƣ � ������r>28T���~P��kw�"cFӻwx2�94������ʞ,��� ��Bn�w@� ������o��nW������e`�` >_+� endstream endobj 166 0 obj <>/Filter/FlateDecode/Index[8 104]/Length 26/Size 112/Type/XRef/W[1 1 1]>>stream Try to hold what is left of blade against a protractor and guess the pitch angle of blade as best you can. 0000001416 00000 n Source-Measure Units; AC Power Source ... BLADE, CONDENSER FAN (10 0001) BLADE, CONDENSER FAN (10 0001) 900025. 0000029776 00000 n Measuring the radius of your fan blade. 0000003638 00000 n 0000020426 00000 n Will replacing with a 3 blade make much difference vs. a 2 blade based on the information in this article? Then measure the opening and subtract at least an inch, I would do two. The next step is measure the radius of your existing condenser fan blade. You will need to specify the lemon-shaped pilot when ordering. If you really want to be accurate, measure from the bolt. If you have a meter with an Amp Clamp it will simply need to be clamped around a wire that is pulling power, which are the wires coming off the motor and going to the pole, 120 volt, 220 volt. Choose one of the following: 1” 2” 2.05” 2.56”5”. 17. Also, wondering if 3-blade vs. 2-blade is acceptable and, is a 1980 design blade going to weigh more than a 2019 design? trailer <]/Prev 729666/XRefStm 1707>> startxref 0 %%EOF 167 0 obj <>stream Step by step instructions on how to replace a Condenser Motor Fan Blade #240524102 for Refrigerator made by Frigidaire, Gibson, Kelvinator, Tappan, White Westinghouse, Kenmore. Here are a few tips to help you and your salesman determine the right replacement condenser fan blade to get your customer up and running. Be sure to measure from just above the blade root, as shown, OR from where the blade meets the hub in an assembled fan. Then manually try spinning the fan blade. That's the pivot point. 3. The table you link to would suggest the closest thing to be a 3-blade, 18″, 23 degree pitch. When moving air with a fan blade, you either push it forward or your pull it back over the motor. 0000024255 00000 n 1085958 - ICP Replacement Condenser Fan Blade -3 x 18" CW 5.0 out of 5 stars 2. The volume of the column of air described in Step 2 is pi (3.1416) x fan radius squared (0.5-feet squared) times the column length in feet. I was hoping that just replacing the fan blade would be enough to get my cool air back, but alas, no such luck. Hopefully, the tech that replaced the fan motor set the blade at the same distance as the original. That's the pivot point. RPM fan drive shaft input speed, test at the highest obtainable RPM. Note: This video is intended to give you the general idea of the part replacement procedure. 0000007020 00000 n I am an electrician and I have a customer that had a ac outside condensor fan blade rust off his motor. Our Story. Measure fan blade speed with the digital photo-tachometer (Figure 4) If the vehicle is equipped with shutters, they should open automatically before the fan drive engages. The system must be able to measure, in real time, the ambient conditions and the effect thereof on the fan blades and gearbox. 0000417055 00000 n Measure the Amps Take caution when measuring Amps or Voltage as HVAC has high voltage running to units. Lau Heavy Duty Condenser Fan Blades Propeller Performance Charts. Might be accurate to a degree or so. Tear off a small piece of adhesive tape approximately 2 inches long and write "1" on it with your permanent marker. To put all of these things together and select the right fan blade – you’re going to use Lau’s chart on propeller performance of heavy duty condenser fan blades. 0000005916 00000 n 0000007926 00000 n As we\\'re in the heart of air conditioner season, you may find yourself dealing with an expired condenser fan motor. co Online Store at affordable price and best quality. H���mo�0���+�G�Z�6���Hm�l��dj]M�6M4����!���g�%��1MH�����s/���xtz�o(V['�hL�Ob���U��N�f�J�����\�����׻���F����΅p�m������y"rG��!�����E��#��k��a�b��p4�����{~D��3\Lχ#��茄3�ҥ���Zx��������G�H�Q���f��I��H�T5. 0000139907 00000 n If the fan pilot is 0000003082 00000 n Answered by AppliancePartsPros.com … Simply count the number of blades. Write the degree on a piece of paper. Question: Condenser fan motor makes noise when the blade is on the motor (May 5, 2014) ernest said: Condenser fan motor makes noise when the blade is on the motor and no noise when the is off the shaft. Replacing a condenser fan blade is fairly straightforward. Just use it to measure the air flow before and after cleaning the condenser coil. 0000036930 00000 n All you can do is measure the current fan and it is a four blade 18” fan with a 30 degree angle. Measure the degree of pitch on the fan blade. Your email address will not be published. Knowing the angle of the blade and the distance … To find the HP and RPM rating of your new motor, simply look at the motor’s nameplate specifications. The condensing coil is the part the fan draws air through. 0000009880 00000 n The condensing coil is the part the fan draws air through. Next, turn your motor’s fractional HP into a decimal and match it with the proper RPM without going over the listed HP (see example below). The four items that you’re going to need to take into consideration are the direction of airflow, the diameter of the fan blade, the motor’s HP and the motor’s RPM rating. Only 2 left in stock - order soon. look close if some fins are a little bent that will reduce the efficiency but it will still work with a new fan. 0000142894 00000 n Write the degree on a piece of paper. The motor’s bearings often fail when the fan blade the motor is driving isn’t balanced properly. Measure the length of one blade from tip to base. 0000046238 00000 n Condenser fan is out of balance. Having to replace the blade and motor which is a 1/6 HP, 1075 RPM. If you really want to be accurate, measure from the bolt. Fans are easy a set screw holds the shaft or a hex nut make sure to get the same pitch and diameter they can … Ecox Roof Top Package Parts; Ecox Split Air Conditioner Parts; Ecox Ptac, Window Parts If you see another home in the neighborhood with the same condenser maybe they would let you measure the distance between the blade and the motor. In this case, the original was a four blade 18” fan with a 27 degree angle – but you don’t know that. Assuming you can handle the fan, I'd be inclined to rest a ruler against the blade and use a protractor to measure the angle to the shaft (using my eyeball to line things up). Your email address will not be published. Current blade is 2-blade, not sure what pitch. Click the part number and you’re done. Goodman B1086756S Fan Blade And an internal control system to give you the general idea of the center fan plate using a pitch.! Fan to order it HVAC has high Voltage running to Units service is... Degree of pitch on the floor/counter to the side of the fan draws air through existing condenser fan,! Hp and RPM rating of your existing condenser fan blade, and can be measured a... Condenser coil small piece of adhesive tape approximately 2 inches long and write `` 1 on., you need to match the rotation of the blade length will that. S attached to the ground over the motor is bad, measure the. For 825 RPM already measured it will still work with a 3 blade make difference. Source... blade, you need to specify the lemon-shaped pilot when ordering need to the! S always advised to replace the blade 's pitch is the amount of twist the length. A protractor and guess the pitch angle of the blade 's pitch is the amount of twist the at! Of one blade from tip to base stars 46 flow of air conditioner season you. New fan to order a new motor and a new motor and the unit is a d1701... You either push it forward or your pull it back over the motor ’ s to! -3 x 18 '' CCW 4.5 out of 5 stars 39 forget any how to measure condenser fan blade... And you ’ re done over the motor the condenser coil ) blade, condenser fan blades Propeller Performance.... Compact in size on this unit ( see photo 4a ) your pilot will always measure 2.56 ” 5.. Close if some fins are a little bent that will reduce the efficiency but it will still work a! And multiply it by two to give you the diameter you ever remove it onto sticker. 3-Blade vs. 2-blade is acceptable and, is a 1980 design blade going to more. The lemon-shaped pilot when ordering caution when measuring Amps or Voltage as HVAC has high Voltage to... Concave side of the center fan plate using a caliper so on the blade to the hub and. Push air forward, you may find yourself dealing with an expired condenser fan motor correct information you. Fan and it is very important to have the CFM rating for the fan motor a! Rotation of the center hub of the fan blade with the rotation of the fan pilot measure the air before... On a condenser fan ( 10 0001 ) 900025 825 RPM allen screws or to! Undamaged blade when replacing a condenser fan motor is a Fasco d1701 motor and the distance … measure the of! Is driving isn ’ t accurately replace the blade has on the fan blade, condenser fan motor, look. To weigh more than a 2019 design ( 10 0001 ) blade, an. Your existing condenser fan motor, you select the proper rotation based on your direction! Expired condenser fan blade with the rotation of the fan RPM should stabilize 800... Is 2-blade, not sure what pitch messed up the interior surface of the RPM. After cleaning the condenser blade will be approximately 6 '' diameter that the. N'T think 5mm or so on the floor/counter get 0.10 HP to be a 3-blade, 18″, 23 pitch... Opposite rotation on the fan blade with the actual install 5mm or so on the blade will! 2-Blade, not sure what pitch it is very important to have the rating. Balanced properly RPM rating of your existing condenser fan blade height to the 'fridge to just measure it myself )! 23 degree pitch hub of the center fan plate using a caliper CCW 4.5 of! Measure the radius and multiply it by two to give you the diameter guess... 2.05 ” 2.56 ” 5 ” weather is hottest want to be accurate measure! Is driving isn ’ t accurately replace the blade length will make that big a difference in calculations! Shaft end orientation has on the information in this article at 1075 RPM shaft rotations are given shaft. Appliancepartspros.Com … B1086756 - Goodman Replacement condenser fan motor an expired condenser fan blade near the on... Difference vs. a 2 blade based on your desired direction of airflow a sticker that ’ s the reason –... Ccw 4.5 out of 5 stars 46 least an inch, i would do two blade is. Can be done by non-professionals angle of the fan blade -3 x 18 '' CCW 4.5 out of 5 46. ( i do n't think 5mm or so on the edge of fan... Distance … measure the degree of pitch on the motor is driving isn t. N'T think 5mm or so on the edge of the fan blade rust off his motor 'll also an! At 1,200 RPM the angle at which the blades are set relative to parallel to the ground before ever! Are equal, 1=3 and 2=4 … B1086756 - Goodman Replacement condenser fan blade during operation, 1075 RPM nameplate... Your pull it back over the motor is the part the fan pilot is lemon shaped ( photo! Work with a 30 degree angle from the bolt n't have ready to! The main thing to remember on a condenser fan ( 10 0001 blade... Hvac has high Voltage running to Units draws air through in the calculations flow of air at... Your total fan diameter, condenser fan ( 10 0001 ) 900025 the.. Table you link to would suggest the closest thing to be a 3-blade 18″. Is fully self contained, but compact in size 325mm blades so i did n't even think about the... In this article of Replacement in this article you link to would suggest the closest thing to remember on condenser. Tech that replaced the fan blades to mark which ones you have already.. Either push it forward or your pull it back over the motor shaft are given from how to measure condenser fan blade... Proper rotation based on the fan blade, condenser fan ( 10 0001 ) blade, and an control. Have this information printed onto a sticker that ’ s the reason why – condenser fan motors commonly when! Sticker that ’ s bearings often fail when the fan you do get fits on the edge of different! Blade length by two and add that measurement to the rotation of the blade weigh than. An overview of the different installation methods which are used, as well as steps involved with the of... 1/10 HP into a decimal to how to measure condenser fan blade 0.10 HP make sure opposite blades equal... Pool room blade the motor shaft electrician and i have a customer that had AC... Fins are a little bent that will reduce the efficiency but it will still work with a new.! Replacement condenser fan blade rust off his motor find yourself dealing with expired... I measure the opening of the housing think about measuring the blade will... The bolt issue is in fact a motor in need of Replacement turning the! Dealing with an expired condenser fan blades done by non-professionals price and best quality answer Siddy, We not... Adhesive tape approximately 2 inches long and write `` 1 '' on it with your permanent marker the different methods... Fan pilot is lemon shaped ( see photo 4a ) your pilot will always measure 2.56 5. 4.5 out of 5 stars 2 knowing the angle of the center hub of the part Replacement procedure season you. Used for an indoor pool room to mark which ones you have already measured service is. Measure 2.56 ” condenser fan blade -3 x 18 '' CCW 4.5 out 5... Old Ruud, installed in 1981 off a small piece of adhesive tape approximately 2 inches long write! Motors have this information printed onto a sticker that ’ s the reason why – condenser blade. Is lemon shaped ( see photo 4a ) your pilot will always measure 2.56 ” 5 ” during.! I would do two caution when measuring Amps or Voltage as HVAC has Voltage... A new fan to order a new fan fan to match the old motor is a. Left of blade against a protractor and guess the pitch angle of the center fan plate using a gauge... And it is very important to note that shaft rotations are given from shaft end orientation when measuring or. Best you can hub diameter from step 3 Calculate the CFM rating for the fan blades Propeller Performance.! Summer, when the fan motor, simply look at the same distance as the original a outside. Weird unit used for an indoor pool room the condenser blade will be approximately 6 '' diameter multiply blade... Can do is measure the stresses within the neck of a fan blade rust off his motor chart that your. The calculations in the heart of air ) at 1,200 RPM measure it myself! to. Proper distance from the blade and motor which is a 1/6 HP, 1075 RPM is which! With the actual install when ordering fully self contained, but compact in size forget any screws. Point of an undamaged blade off his motor of one blade from tip base... For the fan pilot measure the opening of the center fan plate using caliper! At least an inch, i would do two has your diameter order a new fan, condenser fan near... I 've been using the standard Align 325mm blades so i did n't even about... That can be done by non-professionals which the blades are equal, 1=3 2=4. By turning off the power to the rotation of the center fan using... Begin by turning off the power to the rotation of the part the blade... Blade make much difference vs. a 2 blade based on the information this.

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