1. Safety Information
Read and understand all instructions before installing, operating, or maintaining this motor. Failure to follow these instructions may result in electric shock, fire, serious injury, or death.
- Disconnect Power: Always disconnect power at the source before performing any work on the motor or connected equipment.
- Qualified Personnel: Installation and maintenance should only be performed by qualified and trained personnel.
- Proper Grounding: Ensure the motor is properly grounded according to local and national electrical codes.
- Avoid Moving Parts: Keep hands, tools, and clothing clear of rotating parts during operation.
- Environmental Conditions: Do not operate the motor in hazardous or explosive atmospheres unless specifically rated for such use.
2. Product Overview
The Fasco D235 is a 1/12 horsepower, 1500 RPM, 115 Volt shaded pole motor designed for various fan applications. It features a totally enclosed (TE) enclosure for protection against dust and moisture, and sleeve bearings for quiet operation.

This image displays the Fasco D235 motor. It features a dark grey cylindrical housing, with a mounting plate at one end from which four threaded studs protrude. A metal shaft extends from the center of the mounting plate. The motor is designed for fan applications.
3. Specifications
| Feature | Specification |
|---|---|
| Motor Type | Shaded Pole |
| Horsepower (HP) | 1/12 |
| Revolutions Per Minute (RPM) | 1500 |
| Voltage | 115 Volts |
| Amperage | 2.2 Amps |
| Frequency | 60 Hz |
| Phase | Single Phase |
| Thermal Protection | Automatic |
| Speeds | 1 |
| Rotation | Counter Clockwise (CCW) Shaft End |
| Bearings | Sleeve |
| Enclosure Type | Totally Enclosed (TE) |
| Frame Size | 3.3 inches |
| Motor Length (Less Shaft) | 4 3/4 inches |
| Shaft Dimensions | 5/16 inch diameter x 2 1/4 inches length |
| Bolt Circle | 2-27/32 inches (2.85 inches) |
| Item Weight | 4.54 kg |
| Parcel Dimensions | 21.84 x 12.45 x 12.19 cm |
4. Setup
Proper installation is crucial for the safe and efficient operation of the Fasco D235 motor. Follow these steps carefully:
- Mounting: Securely mount the motor using the provided stud mounts. The bolt circle diameter is 2.85 inches. Ensure the mounting surface is rigid and flat to prevent vibration.
- Shaft Alignment: If connecting to a fan blade or other driven component, ensure proper alignment with the motor shaft (5/16" diameter). Misalignment can cause excessive vibration and premature bearing wear.
- Electrical Connection:
- Verify that the power supply matches the motor's specifications: 115 Volts, 60 Hz, Single Phase.
- Connect the motor wiring to the power supply according to local electrical codes and any wiring diagrams provided with your specific application.
- Ensure all connections are tight and insulated.
- Confirm proper grounding of the motor frame.
- Ventilation: Ensure adequate airflow around the motor for cooling, especially if operating in an enclosed space.
5. Operating Instructions
Once properly installed, the Fasco D235 motor is designed for straightforward operation.
- Power On: Apply 115V, 60Hz single-phase power to the motor. The motor should start and reach its rated speed of approximately 1500 RPM.
- Rotation: The motor is designed for Counter Clockwise (CCW) rotation when viewed from the shaft end. Verify this is correct for your application.
- Continuous Operation: The motor is suitable for continuous duty within its specified load and environmental conditions.
- Monitoring: During initial operation and periodically thereafter, observe the motor for any unusual noises, excessive vibration, or overheating.
6. Maintenance
The Fasco D235 motor is designed for low maintenance due to its Totally Enclosed (TE) construction and sleeve bearings. However, regular inspection can prolong its lifespan and ensure reliable operation.
- Cleaning: Periodically clean the exterior of the motor to remove dust, dirt, and debris that could impede cooling. Ensure power is disconnected before cleaning.
- Connections: Annually inspect electrical connections for tightness and signs of corrosion.
- Mounting: Check mounting bolts for tightness to prevent vibration.
- Bearings: The sleeve bearings are typically pre-lubricated and sealed within the TE enclosure, requiring no additional lubrication under normal operating conditions.
- Shaft: Inspect the shaft for any signs of wear or damage.
7. Troubleshooting
If the motor is not functioning as expected, consult the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor does not start | No power supply Loose wiring connection Thermal overload tripped Motor seized | Check power source and circuit breaker Inspect and tighten all electrical connections Allow motor to cool; check for obstructions Inspect for mechanical obstruction; replace motor if seized |
| Motor runs hot | Insufficient ventilation Overload condition Incorrect voltage | Ensure clear airflow around motor Reduce load on motor; check for obstructions in driven equipment Verify supply voltage matches motor rating (115V) |
| Excessive noise or vibration | Loose mounting Misaligned shaft/driven component Worn bearings | Tighten mounting bolts Check and correct alignment of shaft and driven component Contact a qualified technician for inspection/replacement |
| Motor hums but does not turn | Starting winding issue Mechanical obstruction | Disconnect power and check for obstructions; if clear, motor may require service Remove any obstructions preventing shaft rotation |
8. Warranty and Support
This Fasco D235 motor comes with a 1 Year Manufacturer Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For warranty claims, technical support, or service inquiries, please contact Fasco customer service or your authorized dealer. Keep your purchase receipt as proof of purchase.