The Rheem PROTECH 47-22860-01 Automatic Reset Limit Switch (HALC) is an OEM replacement temperature safety control designed for compatible Rheem and Ruud heating equipment.

The 47-22860-01 Limit Switch is a temperature-actuated electrical component used to help protect heating systems against excessive operating temperatures. When the monitored temperature reaches the switch's specified limit, the electrical contacts open, allowing the equipment's safety circuit to interrupt heating operation.

Featuring an automatic-reset design, the switch returns to its normal contact state after the monitored temperature decreases to its specified reset point. This allows compatible equipment to resume operation according to its original control sequence.

The HALC designation identifies the switch in the supplied manufacturer description. Its exact application and temperature ratings should be verified against Rheem's technical documentation.

Designed for equipment-specific replacement, the Rheem 47-22860-01 helps maintain the manufacturer's intended temperature protection and safety control functions.

Key Features & Function

• Brand: Rheem / PROTECH
• Manufacturer Part Number: 47-22860-01
• OEM Description: Limit Switch – Auto Reset (HALC)
• Genuine OEM replacement temperature control
• Automatic-reset operation
• Temperature-actuated electrical switching
• Supports furnace overtemperature protection
• Helps interrupt heating operation during excessive temperature conditions
• Designed for compatible Rheem and Ruud heating equipment
• Equipment-specific electrical and mounting configuration
• Suitable for professional HVAC maintenance and furnace repair

Product Details & Specifications

Specification Note: The exact opening temperature, closing temperature, electrical ratings, and mounting dimensions have not been independently verified. These specifications must be confirmed using Rheem's manufacturer documentation.

HVAC Depot Pro Tip

An automatic-reset furnace limit switch that repeatedly opens may indicate an overheating condition rather than a defective switch.

Before replacing the Rheem 47-22860-01, inspect the furnace for airflow restrictions and other conditions that can cause excessive operating temperatures.

Recommended diagnostic checks:

1. Verify the complete furnace model and serial number.
2. Confirm the original limit switch part number is 47-22860-01.
3. Inspect the air filter for dirt or restrictions.
4. Check supply and return airflow.
5. Verify proper blower motor operation.
6. Inspect the heating system for abnormal temperatures.
7. Examine switch terminals and wiring connections.
8. Test the switch according to manufacturer procedures.
9. Confirm the replacement matches the original temperature and electrical ratings.

HVAC Depot Pro Tip: Never replace an automatic-reset limit switch with a component having a different temperature rating or reset configuration unless specifically approved by the equipment manufacturer.

Important: Never bypass or jumper a furnace limit switch. Repeated activation requires diagnosis and correction of the underlying overheating condition.

Disconnect electrical power before servicing. Installation and testing should be performed by a qualified HVAC technician.

Equipment / Model Compatibility

The Rheem PROTECH 47-22860-01 is intended for select Rheem and Ruud heating equipment requiring this specific OEM automatic-reset HALC limit switch.

Exact compatible equipment models have not been independently verified.

Before ordering, confirm:

• Complete equipment model number
• Equipment serial number
• Original limit switch part number
• Required opening and closing temperatures
• Automatic-reset configuration
• Electrical terminal arrangement
• Mounting dimensions and installation position

Compatibility Notice: The 47-22860-01 is not a universal furnace limit switch. Confirm manufacturer-approved compatibility before purchasing.