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Replacement Freshy motor issue  Rate Topic 
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 Posted: Fri May 10th, 2019 06:33 pm
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Stephen Sanders
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I have a 17RC Fresh'nd are that had a crispy Redmond motor when I got it.  For a replacement I used a FASCO  model D1164 1/25hp 1.3A with wire connected a shown for 115 V. The installation was easy as the diameter of the motor and length of the shaft were very similar to iorigiinal.

The fan ran very so nicely on all three speeds that I ordered another motor for a similar Freshy. Unfortunately I only did a short test run and only realized later that the was getting hot and the thermal overload shitting it down.

I just checked the current draw which was 2.0 for a few moments after starting and then quickly decreasing to 1.4 on High, 1.31-1.34 Medium, and 1.31-1.34 (2 sets of measuring). 

QUESTION: 


1. Is the motor too small? 


2. Is it worth trying the other motor?


3. Does anyone have a part # and source for a different replacement motor.


Thanks  


Last edited on Sat May 11th, 2019 06:25 pm by Stephen Sanders

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 Posted: Fri May 10th, 2019 06:43 pm
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Andrew Block
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I am not an expert on those and the 20" model lists at 1/20hp motor but yours seems underpowered to me.

The amp rating on those is 1.3a so you're at the max with no headroom. What was the HP rating on the original motor?

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 Posted: Fri May 10th, 2019 09:17 pm
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Stephen Sanders
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The Redmond motor was 1/25hp 1.6 Amp.  I agree that the new motor seems small but I thought if 1/25 was enough before it should be enough for the new one. I didn't pay attention to the amp capacity  until today. Every Redmond motor that I had in a Freshy went bad.
I hope someone else comments but I believe that you are correct and the new motor is just below the threshold of being adequate. It's a real shame because the physical  fit was really nice. 

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 Posted: Sat May 11th, 2019 09:32 am
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Rick Huckabee
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Guess I missed something . What is the amp rating on both motors? You will need a motor that has a similar amp draw as the original motor ,  it is probably stamped on the tag.

Last edited on Sat May 11th, 2019 09:41 am by Rick Huckabee

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 Posted: Sat May 11th, 2019 05:29 pm
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David Allen
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One of the most important things about the motor is that it's not operating below its rated speed when on High speed. In other words, if it says 1500 RPM, but the fan blade is too large and slows it down to 1200, then the motor will overheat.

Some of the small motors are rated at speeds upwards of 3000 RPM. This would be severely overloaded in a fan like this. If rated at 3000 and run at 1200 - 1500 RPM then the motor would definitely shut down, or just burn out.

So you would need to be sure the current draw, and the speed (on high) are in line with the motor's specifications.

Hope this helps!

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 Posted: Sat May 11th, 2019 06:19 pm
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Stephen Sanders
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Thank you Rick and David.
Motor               Redmond                        Fasco   

HP                  1/25                              1/25

Amp                 1.6                              1.3/1.7   

Watts  *            184                               150 (115v )

RPM               1550                            1550

Voltage           115                               115/230  

* my calculation of watts V x A

**. I have wondered if I was incorrect in configuring the wires on ne motor for 115V. Per the diagram on new motor I connected black & blue wires together as line in, white as neutral, and red & yellow connected together.I willl post picture of the diagram.


Picture added to first post by mistake 






Last edited on Sat May 11th, 2019 06:27 pm by Stephen Sanders

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 Posted: Sat May 11th, 2019 11:16 pm
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John McComas
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Hi, thought I would take some readings for you with my 17RC.
After 15 minute warm up time, and voltage adjusted to 115 volts:
RPM 1560 (digital stroboscope)
120 watts
1.8 amps
PF= .56
45 second spin down time.
Temperature measured at the front motor housing opening 150 deg. F.
Motor smelled warm, but might just be old motor smell.
I did not open housing to see motor brand, but it had flat black paint on motor housing.

Hope this helps!
Happy Freshy Fanning!

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 Posted: Sun May 12th, 2019 09:09 pm
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Rick Huckabee
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How many wires coming out of the Fasco? If the Redmond motor is supposed to draw 1.84A and the Fasco 1.5A , then it is possible that Fasco is not rated for the size blade you are using and getting hot. Probably running slower too.

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 Posted: Sun May 12th, 2019 09:48 pm
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Stephen Sanders
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Thanks Rick. 
If I’m able to go to Pig Picking I will bring the Freshy and the original motor. In the meantime I will look for a different motor with a 1.6 -1.8 amp rating on the tag. Would you rewind the Redmond or do you know someone  who would? 

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 Posted: Mon May 13th, 2019 01:14 am
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David Allen
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Stephen Sanders wrote: Thanks Rick. 

If I’m able to go to Pig Picking I will bring the Freshy and the original motor. In the meantime I will look for a different motor with a 1.6 -1.8 amp rating on the tag. Would you rewind the Redmond or do you know someone  who would? 


Stephen, I just noticed something about the new motor. It's marked TEAO which stands for "totally enclosed / air-over." This means the motor requires a high velocity air stream across the exterior sides of the motor for cooling. These motors are meant for blower duty where the motor sits inside the blower wheel, or another high velocity airflow area. If there is a motor cover, or shroud on the motor, it will overheat. 

Also; with a Freshen'd Air fan blade, it has a large diameter but only two blades. I would be afraid that there may not be enough air velocity at the center of the fan blade; to cool an air-over class motor.

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 Posted: Mon May 13th, 2019 11:00 am
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Rick Huckabee
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TEAO interesting , I did not know that.

Last edited on Mon May 13th, 2019 11:04 am by Rick Huckabee

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