Heatcraft/Bohn 25317701S OEM Evaporator Fan Motor – 1/15 HP 208-230V

Heatcraft/Bohn 25317701S OEM Evaporator Fan Motor – 1/15 HP 208-230V

The Heatcraft/Bohn 25317701S Evaporator Fan Motor is a genuine OEM commercial refrigeration motor designed for compatible Bohn and Heatcraft refrigeration equipment. This motor is rated for 208-230V, single-phase, 60Hz operation and delivers 1/15 HP at 1625 RPM.

The evaporator fan motor drives the applicable fan blade to move refrigerated air across the evaporator coil and throughout the refrigerated space. Proper evaporator airflow is critical to heat transfer, stable product temperatures, normal cabinet or walk-in pull-down, and dependable refrigeration performance.

When qualified diagnosis confirms fan-motor replacement is required, using the correct Heatcraft/Bohn OEM 25317701S helps restore the original electrical, shaft, rotation, and airflow configuration intended for the applicable refrigeration system.

OEM Part Details & Specifications

• Manufacturer: Heatcraft Refrigeration Products / Bohn
• OEM Part Number: 25317701S
• MPN: 25317701S
• Part Type: Evaporator Fan Motor / Unit Cooler Motor
• Voltage: 208-230V AC
• Phase: Single Phase
• Frequency: 60Hz
• Horsepower: 1/15 HP
• Speed: 1625 RPM
• Shaft Diameter: 5/16"
• Rotation: Clockwise (CW)
• Motor Type: Electrically Commutated Motor (ECM)
• Application: Commercial Refrigeration / Unit Coolers
• System: Evaporator Airflow
• Function: Evaporator Fan Drive / Refrigerated Air Circulation

What the 25317701S Evaporator Fan Motor Does

The 25317701S fan motor supplies the rotational power required to turn the applicable evaporator fan blade. As the blade rotates, air moves across the evaporator coil where heat is absorbed from the refrigerated space.

Proper fan-motor operation helps support:

• Consistent evaporator airflow
• Proper refrigeration heat transfer
• Stable refrigerated-space temperatures
• Normal equipment pull-down
• Reduced temperature stratification
• Proper product-storage conditions
• Reduced unnecessary compressor run time
• Dependable commercial refrigeration performance

208-230V, 1/15 HP, 1625 RPM Motor

Heatcraft identifies OEM 25317701S as a 208-230V, single-phase, 60Hz motor rated at 1/15 horsepower and 1625 RPM. These specifications are important replacement characteristics and should agree with the removed motor and equipment documentation.

Do not substitute another refrigeration motor simply because the housing looks similar. Motors can differ in voltage, RPM, horsepower, shaft diameter, rotation, mounting arrangement, wiring, and equipment application.

5/16" Motor Shaft

The 25317701S uses a 5/16-inch shaft. Shaft diameter must match the intended fan blade or hub so the blade remains centered and secure during operation.

An incorrect shaft or fan-blade fit can cause:

• Blade wobble
• Excessive vibration
• Reduced airflow
• Fan-guard contact
• Premature bearing wear

Clockwise Rotation

Heatcraft's official OEM motor specifications identify 25317701S with clockwise rotation. Rotation should always be compared using the same viewing reference as the original motor and equipment documentation before installation.

Incorrect motor or blade rotation can significantly reduce airflow even when the motor itself is running normally.

Common Signs of an Evaporator Fan Motor Problem

Qualified commercial refrigeration technicians may inspect Heatcraft/Bohn 25317701S when troubleshooting conditions such as:

• Evaporator fan does not run
• Motor starts intermittently
• Motor hums but does not rotate
• Fan turns slower than expected
• Motor becomes unusually hot
• Grinding, rattling, or bearing noise develops
• Motor shaft has excessive play
• Fan blade wobbles during operation
• Airflow through the evaporator is reduced
• Walk-in or refrigerated space develops uneven temperatures
• Temperature recovery becomes slow
• Evaporator develops abnormal frost patterns
• Wiring or terminals show heat damage

These symptoms do not automatically confirm motor failure. Fan blades, ice buildup, wiring, controls, motor mounting, airflow restrictions, defrost problems, and other refrigeration-system conditions can produce similar symptoms. Diagnose the complete fan circuit before replacing the motor.

Diagnosing an Evaporator Fan That Will Not Run

A non-running fan does not automatically mean the 25317701S motor has failed. Before replacement, technicians should verify that the motor receives the correct electrical supply and that the fan assembly can rotate freely.

Inspect applicable:

• 208-230V supply
• Motor wiring
• Electrical connectors
• Fan-delay or defrost controls
• Fan blade movement
• Motor shaft and bearings
• Ice buildup
• Mechanical obstruction

Inspect the Fan Blade

Whenever the fan motor is replaced, inspect the connected fan blade at the same time.

Check for:

• Cracked or broken blades
• Bent blade sections
• Loose mounting
• Incorrect shaft fit
• Excessive vibration
• Evidence of fan-guard contact
• Incorrect airflow direction

A damaged or incorrectly installed blade can overload a new motor and reduce evaporator airflow.

Inspect the Motor Shaft & Bearings

Mechanical wear can cause noise, vibration, reduced airflow, and repeated fan-component failure.

Inspect for:

• Excessive shaft play
• Rough shaft rotation
• Bearing noise
• Bent motor shaft
• Mechanical binding
• Evidence of overheating

Check for Evaporator Ice Buildup

If the original motor or fan blade was restricted by ice, diagnose the cause before installing the replacement motor.

Possible causes include:

• Defrost-system problems
• Defrost heater failure
• Defrost termination or fan-delay problems
• Door gasket leakage
• Warm-air infiltration
• Drainage problems
• Airflow restrictions

Repeated ice obstruction can damage the fan blade, motor bearings, or replacement motor.

Inspect Wiring & Electrical Connections

Commercial refrigeration motors operate in cold, humid environments where moisture and vibration can affect electrical connections.

Inspect for:

• Loose terminals
• Damaged connectors
• Broken conductors
• Corrosion
• Heat-damaged insulation
• Pinched wiring
• Moisture contamination
• Evidence of electrical arcing

Correct damaged wiring or connectors before energizing the replacement motor.

Technician Checks Before Ordering

Before ordering Heatcraft/Bohn 25317701S, verify:

• OEM part number 25317701S
• Complete equipment model
• Equipment serial number
• 208-230V, single-phase, 60Hz electrical requirement
• 1/15 HP motor rating
• 1625 RPM speed
• 5/16" shaft
• Clockwise rotation requirement
• Original motor markings
• Motor mounting configuration
• Electrical connector arrangement
• Original fan blade
• Required airflow direction

Do not select a refrigeration fan motor by horsepower or voltage alone. Similar motors can use different shaft sizes, RPM ratings, rotations, mounting configurations, and electrical connections.

Commercial Refrigeration Applications

Heatcraft and Bohn unit cooler equipment is commonly used in commercial refrigeration environments including:

• Walk-in coolers
• Walk-in freezers
• Commercial cold-storage rooms
• Restaurants
• Supermarkets
• Convenience stores
• Food distribution facilities
• Hotels
• Schools
• Hospitals
• Institutional kitchens

Installation & Service Notes

Disconnect electrical power before servicing any commercial refrigeration fan assembly.

Before removing the original motor, document:

• Motor orientation
• Wire positions
• Electrical connections
• Mounting arrangement
• Shaft position
• Fan blade position
• Airflow direction

Compare the replacement Heatcraft/Bohn 25317701S with the original motor before installation.

After installation, verify:

• Motor starts reliably
• Fan rotates freely
• Rotation is correct
• Fan moves air in the intended direction
• No abnormal vibration is present
• No unusual bearing or motor noise occurs
• Fan blade clears the guard and surrounding components
• Evaporator airflow is restored
• Motor does not overheat
• Refrigerated-space temperature recovers normally

Why Correct OEM Identification Matters

Commercial refrigeration fan motors can look nearly identical while using different voltage, horsepower, speed, shaft size, rotation, mounting, and electrical configurations.

Using Heatcraft/Bohn OEM part number 25317701S together with the verified 208-230V, 1/15 HP, 1625 RPM, 5/16" shaft, clockwise specifications provides the strongest replacement reference.

Frequently Asked Questions

What is Heatcraft/Bohn 25317701S?

25317701S is a genuine OEM evaporator fan motor used in compatible Bohn and Heatcraft commercial refrigeration equipment.

What voltage is 25317701S?

Heatcraft specifies the motor for 208-230V AC, single-phase, 60Hz operation.

What horsepower is 25317701S?

The motor is rated at 1/15 HP.

What speed is the motor?

Heatcraft specifies 1625 RPM.

What shaft size does 25317701S use?

The motor uses a 5/16" shaft.

What rotation is 25317701S?

Heatcraft's official OEM parts data specifies clockwise rotation. Confirm the original installation and viewing reference before replacement.

Is this an evaporator fan motor?

Yes. Parts Town identifies 25317701S as a Bohn genuine OEM evaporator motor, and other authorized Heatcraft parts sources describe it as a unit cooler motor.

Can a bad evaporator fan motor cause poor cooling?

Yes. Reduced evaporator airflow can contribute to uneven temperatures, slow pull-down, icing, and extended compressor operation.

Should the fan blade be inspected when replacing the motor?

Yes. Inspect the blade for damage, looseness, correct shaft fit, rotation, and clearance.

Does 25317701S have a verified public model list?

The OEM parts source checked does not currently publish a reliable model-fitment list. Verify the equipment model, serial number, and original motor before ordering.

Can I replace 25317701S with any 1/15 HP 208-230V motor?

No. Verify RPM, shaft diameter, rotation, phase, mounting, wiring, fan blade, equipment model, and serial number in addition to voltage and horsepower.

How do I confirm 25317701S is correct?

Verify OEM part number 25317701S, complete equipment model and serial number, 208-230V requirement, 1/15 HP rating, 1625 RPM speed, 5/16" shaft, rotation, mounting, and wiring before ordering.

Is professional installation recommended?

Yes. Commercial refrigeration motors and electrical components should be diagnosed and installed by qualified refrigeration service personnel.

Why Buy From Parts Direct Online?

Parts Direct Online supplies OEM Heatcraft and Bohn fan motors, fan blades, defrost controls, heaters, refrigeration controls, coils, and related commercial refrigeration replacement parts for service technicians, contractors, restaurants, supermarkets, cold-storage facilities, and commercial foodservice operations throughout the United States.