Master Flow Replacement Power Vent Motor for Master Flow PR1, PR2, PG1 and PG2 Series-PVM105 - The Home Depot

Master Flow

Model # PVM105

Internet # 100062911

Store SKU # 144738

Replacement Power Vent Motor for Master Flow PR1, PR2, PG1 and PG2 Series

Master Flow Replacement Power Vent Motor for Master Flow PR1, PR2, PG1 and PG2 Series

This item has been discontinued.
The Home Depot no longer carries this specific product.

$56.00 / each
  • Replacement Power Vent Motor
  • Replaces motor in Master Flow Models PR1, PR2, PG1, and PG2
  • 1/9 HP motor


Model # PVM105

Internet # 100062911

Store SKU # 144738

Store SO SKU # 813317

The PVM105 motor is the replacement motor for the Master Flow Power Roof Vents (PR1 & PR2 series) and Power Gable Vents (PG1 & PG2 series). This upgraded PSC (Permanent Split Capacitor) motor is easy to install with the power vent in place, no need to remove the power vent. Minimal tools needed for replacement.

  • PSC motor – more efficient than standard “shaded pole” motors
  • Replace old motor quickly
  • Leave power vent in place while replacing, no need to remove entire unit
  • Minimal tools needed
  • Motor casing may vary in color


Assembled Depth (in.)  5.5 in  Assembled Height (in.)  8.75 in 
Assembled Width (in.)  5.5 in  Product Depth (in.)  5.5 
Product Height (in.)  5.5  Product Width (in.) 
Color/Finish Family  Metallic  Material  Galvanized Steel 
Product Weight (lb.)  8 lb  Returnable  90-Day 
Warranty / Certifications
Manufacturer Warranty  1-year Limited Warranty 


Rated 3.5 out of 5 by 57 reviewers.
Rated 5 out of 5 by FAN-tastic I purchased the PR2-HI22 in 4/8/2001 and installed a lighted inline switch in the closet to turn the unit off in the winter. The light install is attached to the dead side of the wire/switch, so when switched on there is a light indicator. I have not replaced the motor but purchased this replacement motor, just in case it is needed. I feel most who have had issues set the trip level too low which results in higher fan operation. Although, if you follow the instructions it recommends 105° F, I set the thermostat to 118° F. I also did my best to make sure the thermostat gets plenty of air flow when the motor is operating. Hope this information will assist those who have had issues. June 4, 2013
Rated 2 out of 5 by Consider it a consumable Razor blades are designed to wear out after a certain number of uses and so too are these motors. I recently purchased a new residence and the seller had two of these motors on hand to replace the two failed ones up in the attic. I placed a thermo probe in the attic prior to replacement - temp reached a high of 141 deg F. After replacement we are down to 102 deg F. As others have said, you need 2x 7/16 wrenches and an allen wrench (mine required 5/32 - odd). The bolt/nut removal for the housing is easiest when you have one socket drive and one closed end wrench. The fan is fairly loud when running but I can't hear it once my attic access door is closed. May 31, 2012
Rated 3 out of 5 by Replacement motor The motor replacement was easy everything fit together and it ran just fine. Hope it lasts the old one lasted for eleven years. I'm lucky that I watched some u tube videos on installing it. I didn't know that if you twist the conduit it will come off the old motor. The rest is pretty basic the hardest part was loosening the set screw on the fan blade. November 30, 2014
Rated 4 out of 5 by These motors require maintenance every 2-3 years. Have used this roof vent system for 30 years, replaced a couple of times when the plastic dome, not the metal one deteriorated in TX sun. The motor has only bronze sleeve bearings that require periodic cleaning and lubrication. Have looked for, but never found a ball bearing motor for this application. To cut down on dust entering the shaft end of the motor, cut a 2 inch diameter leather or rubber circle, punch a 7/16 hole in the center and slip over the shaft between the motor and fan. One can get 15-20 years out of a motor with some regular care and lubrication. The new motor is a capacitor run motor drawing 1.6 amp instead of 3-4 amps. A motor with sealed ball bearing and thrust bearing would solve the problem. July 1, 2012
Rated 1 out of 5 by They don't last I love reading all these five-star reviews from people who _just_ installed this. I have bought six of these over an 11 year period. You do the math about their reliability. They invariably die on the hottest day of the year. Climbing into a scorching attic to replace the motor (again) is not my idea of a good time. I wish somebody offered a high-quality, American-made alternative. I would gladly pay twice as much for something that would last 10 years. July 17, 2012
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