Quadra-Fire Classic Bay CB1200/1200i Complete Feed Motor Assembly, 812-3690-AMP


A $150.00 Savings vs the OEM

SKU 812-3690-AMP
MPN 812-3690
Only 6 Left In Stock
  • Aftermarket Part
  • Ships FREE with orders over $199
  • 30-Day Hassle Free Returns!
  • 90 Day Warranty Included
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Frequently Bought Together


This Quadra-Fire feed motor assembly is used on all model variations of the Classic Bay CB1200 pellet stove and CB1200i Pellet Insert

This whole assembly is a compatible fit for all model versions when it is installed completely as a whole assembly.

This assembly has updates to the bearing and the motor bracket which ARE NOT COMPATIBLE with older feed assembly parts.


This assembly includes the following parts:

  • Feed Motor - 812-4421
  • Phillips Screws - (QTY 4) 8-32 X 3/8, 225-0500
  • 7/8" Lock Collar - 229-0520
  • Nylon Bearing - SRV7000-598, Replaces 410-0552
  • Motor Bracket - 410-7172, redesigned for the SRV7000-598 bearing, (replaces the previous bracket 410-7172 that used the 410-0552 bearing)
  • Feed Motor Gasket - SRV240-0731
  • Feed Spring Assembly 15 3/4" - SRV7027-024 - Final bearing adjustment will set the auger depth at 14 3/8"
  • Shaft Set Screw - 5/16 - 18 X 1/4, 225-0550 (included with shaft and collar)


  • Final bearing height adjustment is required by the installer, instructions included. Download PDF

Replacement For Part Number:
  • 812-3690

Technical Specs

RPM 2.4
Direction CW
Amps 1
Volts 115/120
Connector 3-PIN Molex


Assembly Instructions For Quadra-Fire Classic Bay CB1200/1200i Complete Feed Motor Assembly, 812-3690-AMP

Feed Motor Spring Replacement Instructions

  1. Open the right-side curtain and remove hopper's side heat shield to access wiring and disconnect Molex wire connections. If there are not any Molex wires connectors, then disconnect the spade connectors under feed motor cover.
  2. Remove or support the hopper lid while you work.
  3. Mark the feed adjustment rod position on feed motor cover for future reference. This will eliminate the need to re-set the feed rate when you are done.
  4. Remove the cover and front access plate from hopper. Use a 7 /16" wrench to remove the two nuts holding down the nylon bearing and motor mount.
  5. Remove feed motor / auger assembly by pulling out towards face of the stove.
  6. Install your new assembly.

NOTE: This assembly has a different bearing and motor mount than what was on previous models. The bracket mounts directly to the feed tube without the nylon block.


Quadra-Fire Classic Bay 1200 Pellet Stove: Troubleshooting Video: https://youtu.be/ZhgNWi1kE7g

What to check if the unit is NOT feeding pellets:

  • Snap Disc #2 malfunctioned
  • Vacuum switch is not closing
  • Hopper lid switch (if equipped) is not aligned
  • Vacuum switch hose is clogged at feed tube
  • Capacitor on motor is too close to heat source or is defective
  • Bad control box


Unfortunately, sometimes products do not work like they are supposed to. We offer a 90 day warranty on manufacturer defects. Some manufacturers make this a very simple and easy process unfortunately others do not. Items must be used in accordance with the manufacturers guidelines to qualify for warranty replacement. Please be advised that warranty claims for these parts may take up to 4 weeks for processing, and customers must cover shipping.

Shipping Info

This Item Qualifies For Free Shipping!

When Will My Order Ship

All orders are typically processed within 24 hours of receiving payment and are shipped from us same day if placed before our shipping cutoff time (Monday - Friday: 1PM, Saturday: 10AM, Sunday: No Shipping), orders placed after our cutoff time are shipped the next morning.

How Does Free Shipping Work?

Most orders over $199 qualify for free shipping! Orders which ship for free are shipped with either USPS or UPS based on our discretion. If you are using a PO box, free shipping orders will always go USPS.

Is Expedited Shipping Available?

We offer both overnight and two day air shipping services for all orders placed within the Continental United States. For information on shipping cut-off times, go to our shipping page.

Do You Ship To Canada?

We ship to Canada! We estimate USPS to take 4-10 days once receiving your package from us. We do not offer expedited shipping of any kind to Canada. Please allow an extra 2-5 days for all shipments to Canada. Free shipping is not available to Canada.

Do You Ship To Alaska Or Hawii?

We ship to both Alaska and Hawaii! We do not offer next day or two day shipping to Alaska or Hawaii. Free shipping is not available to Alaska or Hawaii.

Do You Ship Outside The US Or Canada?

Unfortunately, at this time we do not offer international shipping other than to Canada.

Shipping Time Estimations

For information on shipping time estimations, see the Shipping Information & Transit Times on the shipping page.

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Customer Reviews

Based on 1 review
Terry h.

Quadra-Fire Classic Bay CB1200/1200i Complete Feed Motor Assembly, 812-3690-AMP


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Customer Reviews

Based on 1 review
Terry h.

Quadra-Fire Classic Bay CB1200/1200i Complete Feed Motor Assembly, 812-3690-AMP