Introduction
This instruction manual provides essential information for the proper installation, function, and maintenance of your Whirlpool 627985 Icemaker Thermostat. This component is an Original Equipment Manufacturer (O.E.M.) authorized replacement part designed to fit various Whirlpool refrigerator models. Please read this manual thoroughly before proceeding with any installation or repair to ensure safe and effective operation.
Safety Information
WARNING: Electrical Shock Hazard
- Always disconnect power to the refrigerator before attempting any service or installation. Failure to do so can result in serious injury or death.
- Wear appropriate personal protective equipment, such as gloves and eye protection.
- If you are not comfortable performing this repair, it is recommended to consult a qualified appliance service technician.
- Ensure all connections are secure and properly insulated after installation.
Product Overview
The Whirlpool 627985 Icemaker Thermostat is a critical component within your refrigerator's ice production system. It is responsible for sensing the temperature of the ice mold and signaling the icemaker to harvest and refill once the ice cubes are fully frozen.
Image: Whirlpool 627985 Icemaker Thermostat. This image displays the cylindrical thermostat with two brass electrical pins extending from its top, surrounded by a translucent cap and blue thermal compound.
This thermostat is a compact, cylindrical device, typically containing a bimetallic strip or similar temperature-sensing element. It features two electrical pins for connection to the icemaker's control circuit.
Setup and Installation
This section outlines the general steps for replacing an existing icemaker thermostat. Specific procedures may vary slightly depending on your refrigerator model. Refer to your appliance's service manual for detailed instructions.
- Disconnect Power: Unplug the refrigerator from the electrical outlet or turn off the circuit breaker supplying power to the appliance.
- Access Icemaker: Open the freezer door and locate the icemaker assembly. You may need to remove the ice bucket and any retaining screws or clips to access the icemaker module.
- Locate Thermostat: Identify the existing thermostat on the icemaker module. It is typically a small, cylindrical component attached to the ice mold.
- Remove Old Thermostat: Carefully disconnect any wiring from the old thermostat. If it is secured with adhesive or a clip, gently pry it loose. Note its orientation for correct installation of the new part.
- Prepare New Thermostat: Apply a small amount of thermal conductive adhesive or thermal paste (not included, often sold separately) to the flat surface of the new 627985 thermostat that will contact the ice mold. This ensures efficient temperature transfer.
- Install New Thermostat: Position the new thermostat in the same location and orientation as the old one, ensuring good contact with the ice mold. Secure it with any clips or screws, and ensure the thermal adhesive creates a firm bond.
- Reconnect Wiring: Attach the electrical wires to the pins of the new thermostat. Ensure connections are firm and correct.
- Reassemble Icemaker: Reinstall the icemaker module and any components removed to gain access.
- Restore Power: Plug the refrigerator back into the electrical outlet or turn on the circuit breaker.
- Test Operation: Allow several hours for the icemaker to cycle and produce ice. The first few batches may be smaller or take longer.
Operating Principles
The Whirlpool 627985 Icemaker Thermostat operates based on temperature changes within the ice mold. When water fills the ice mold, the thermostat monitors its temperature. Once the water freezes solid and reaches a specific low temperature, the thermostat closes an electrical circuit. This signal initiates the next phase of the icemaker cycle, which typically involves:
- Activating a heating element to slightly warm the mold, allowing the ice cubes to release.
- Engaging a motor to rotate the ejector arms, pushing the ice cubes out of the mold and into the ice bucket.
- Refilling the ice mold with fresh water to begin the next freezing cycle.
A properly functioning thermostat ensures that ice is harvested only when fully frozen, preventing slushy ice or incomplete cycles.
Maintenance Guidelines
The Whirlpool 627985 Icemaker Thermostat is designed for durability and typically requires minimal maintenance. However, periodic inspection can help ensure its longevity and proper function:
- Visual Inspection: Periodically inspect the thermostat and its connections for any signs of corrosion, damage, or loose wiring.
- Cleanliness: Ensure the area around the icemaker and thermostat remains clean and free of ice buildup or debris, which could interfere with temperature sensing.
- Thermal Contact: If the icemaker's performance degrades over time, ensure the thermal paste or adhesive between the thermostat and the ice mold is still intact and providing good contact.
Troubleshooting
If your icemaker is not functioning correctly, the thermostat may be a contributing factor. Here are some common issues and potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Icemaker not producing ice. | Faulty thermostat, loose connection, or other icemaker component failure. | Verify power to the refrigerator. Check thermostat wiring for secure connections. If the thermostat is suspected, it may need to be tested for continuity or replaced. Ensure freezer temperature is set correctly (typically 0°F / -18°C). |
| Icemaker produces ice but does not drop it. | Thermostat not signaling the harvest cycle, or heating element failure. | The thermostat may not be sensing the correct temperature or its internal contacts are faulty. Ensure good thermal contact with the ice mold. A faulty thermostat will prevent the heating element from activating to release the ice. |
| Icemaker produces slushy or incomplete ice cubes. | Thermostat signaling too early, or freezer temperature too high. | Check freezer temperature settings. A thermostat that signals prematurely can lead to soft ice. Ensure the thermostat is properly seated and has good thermal contact. |
If troubleshooting steps do not resolve the issue, it is recommended to consult a qualified appliance service technician.
Specifications
- Part Number: 627985
- Brand: Whirlpool
- Model Name: 627985
- Item Weight: Approximately 1.41 ounces (40 grams)
- Product Dimensions: Approximately 4.5 x 2.75 x 1 inches (11.43 x 6.98 x 2.54 cm)
- Manufacturer: Appliances Parts Co. (for Whirlpool)
- Compatibility: Fits various Whirlpool models (verify compatibility with your specific appliance before purchase).
Warranty and Support
This Whirlpool 627985 Icemaker Thermostat is an O.E.M. authorized part. For specific warranty information, please refer to the documentation provided with your original appliance or contact Whirlpool customer support directly. Keep your purchase receipt as proof of purchase for any warranty claims.
For technical assistance or further inquiries, please visit the official Whirlpool support website or contact their customer service department.
