Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of the Rheem 70-100612-03 Furnace Draft Inducer/Exhaust Vent Venter Motor. This component is designed as a replacement part for compatible Rheem furnace systems. Please read all instructions carefully before proceeding with installation or service.
Safety Information
WARNING: Risk of electric shock, fire, or explosion. Improper installation, adjustment, alteration, service, or maintenance can cause property damage, personal injury, or loss of life. Read and understand all instructions thoroughly before proceeding. Installation and service must be performed by a qualified installer, service agency, or gas supplier.
- Always disconnect power to the furnace before servicing.
- Wear appropriate personal protective equipment (PPE), including gloves and eye protection.
- Ensure all wiring connections are secure and conform to local electrical codes.
- Verify proper venting and combustion air supply after installation.
Product Overview
The Rheem 70-100612-03 is a replacement draft inducer motor kit for furnace applications. Its primary function is to draw combustion gases from the furnace heat exchanger and expel them through the exhaust vent system, ensuring proper airflow for safe and efficient operation.
Image 1: Rheem 70-100612-03 Furnace Draft Inducer Motor. This image displays the complete draft inducer motor assembly, including the motor housing, fan, and electrical connections. The unit is black with various colored wires and a silver capacitor attached.
Setup and Installation
This section outlines the general steps for replacing a furnace draft inducer motor. Specific procedures may vary based on your furnace model. Consult your furnace's service manual for detailed instructions.
- Power Disconnection: Turn off all electrical power to the furnace at the main service panel. Verify power is off using a voltage tester.
- Access: Locate and access the existing draft inducer motor. This may require removing furnace panels.
- Disconnect Wiring: Carefully disconnect all electrical wires from the old motor, noting their positions for correct re-connection. Take photos if necessary.
- Remove Old Motor: Unbolt or unfasten the old draft inducer motor from its mounting bracket and disconnect any attached hoses or ducts.
- Inspect and Clean: Inspect the mounting area and surrounding components for any debris or corrosion. Clean as necessary.
- Install New Motor: Mount the new Rheem 70-100612-03 motor in the same position as the old one. Secure all bolts or fasteners.
- Connect Wiring: Reconnect all electrical wires to the new motor according to the previous configuration. Ensure connections are tight and secure.
- Reconnect Hoses/Ducts: Reattach any pressure switch hoses or exhaust ducts to the new motor. Verify a tight seal.
- Restore Power and Test: Replace furnace panels, restore electrical power, and initiate a heating cycle to test the new motor's operation. Listen for unusual noises and observe exhaust flow.
Operating Instructions
The Rheem 70-100612-03 draft inducer motor operates automatically as part of the furnace's combustion cycle. When the thermostat calls for heat, the furnace control board initiates the following sequence:
- The draft inducer motor starts, creating a negative pressure (draft) in the heat exchanger.
- A pressure switch monitors this draft. Once sufficient draft is established, the pressure switch closes, signaling the control board.
- The control board then allows the igniter to activate and the gas valve to open, initiating combustion.
- The inducer motor continues to operate throughout the heating cycle, ensuring proper exhaust of combustion byproducts.
- Once the thermostat is satisfied, the gas valve closes, and the inducer motor will typically run for a post-purge cycle to clear any remaining gases before shutting off.
No direct user interaction is required for the operation of the draft inducer motor itself.
Maintenance
Regular maintenance helps ensure the longevity and efficient operation of your draft inducer motor and furnace system. Always disconnect power before performing any maintenance.
- Annual Inspection: Have a qualified technician inspect the draft inducer motor annually as part of routine furnace maintenance.
- Check for Obstructions: Periodically check the exhaust vent and the inducer motor's inlet for any obstructions (e.g., debris, bird nests). Clear any blockages carefully.
- Listen for Unusual Noises: Pay attention to any new or unusual noises coming from the motor, such as grinding, squealing, or rattling, which could indicate a failing bearing or fan.
- Inspect Wiring: Ensure all electrical connections are secure and free from corrosion or damage.
- Clean Fan Blades: If accessible, gently clean any dust or debris from the fan blades to maintain proper airflow.
Troubleshooting
If your furnace is experiencing issues related to the draft inducer motor, consider the following common problems and potential solutions. Always consult a qualified technician for complex issues.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inducer motor does not start. | No power, faulty wiring, control board issue, seized motor. | Check furnace power supply. Verify wiring connections. Consult a technician for control board or motor replacement. |
| Inducer motor runs but furnace does not ignite. | Faulty pressure switch, blocked vent, clogged inducer port. | Check pressure switch hose for blockages. Inspect vent for obstructions. Clean inducer motor ports. Replace pressure switch if faulty. |
| Loud or unusual noises from motor. | Worn bearings, fan obstruction, loose mounting. | Inspect for obstructions. Tighten mounting bolts. Motor replacement may be necessary if bearings are worn. |
| Motor runs continuously. | Stuck pressure switch, control board issue. | Consult a qualified technician to diagnose and repair. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | 70-100612-03 |
| Brand | Rheem |
| Manufacturer | Fasco |
| Product Dimensions | 6 x 6 x 6 inches |
| Item Weight | 10 Pounds (160 Ounces) |
| Speed | 100 (Unit not specified, typically RPM or percentage) |
| First Available | September 18, 2013 |
Warranty Information
Specific warranty details for the Rheem 70-100612-03 Draft Inducer Motor are not provided within this manual. For information regarding warranty coverage, terms, and conditions, please refer to the documentation included with your purchase or contact Rheem customer support directly.
Customer Support
For technical assistance, troubleshooting beyond the scope of this manual, or to inquire about replacement parts, please contact Rheem customer support or a qualified HVAC technician. Always provide your product model number (70-100612-03) when seeking support.
You can often find contact information for Rheem on their official website or through your local authorized dealer.
