Ao Smith 100109676 4 Pin to 5 Pin Adapter

Product Description

The AO SMITH 100109676 is a 4 pin to 5 pin adapter designed to bridge connector configurations in water heater or HVAC control wiring applications. This adapter allows a 4-pin harness to mate with a 5-pin connector, enabling component replacement or system upgrades without full wiring modification. It is typically installed by licensed plumbers, HVAC technicians, or water heater service professionals during control board replacements or component swaps where connector pin counts differ between the original and replacement part.

This adapter is suited for residential and light commercial service scenarios where a wiring harness connector mismatch exists between an existing unit and a replacement component. It eliminates the need to splice or repin wiring in the field, reducing installation time and lowering the risk of wiring errors during service calls.

Key Features

• Converts 4-pin connector to 5-pin connector for direct plug-in compatibility
• Eliminates field splicing or repinning during component replacement
• OEM part number 100109676 ensures direct fit for intended applications
• Compact adapter format for use in confined control compartments

Compatibility

Designed as an OEM-style wiring adapter for use in AO SMITH water heater or related control wiring applications where a 4-pin to 5-pin connector conversion is required.

Installation Notes

Installation should be performed by a qualified plumber or HVAC technician. Disconnect power to the unit at the breaker before accessing any wiring or control components. Verify pin orientation and connector locking tab engagement before restoring power. Do not force connectors together if alignment is uncertain, as bent or damaged pins may cause control faults.

Technical Specifications

• Product Type: Adapter
• Pin Configuration: 4 pin to 5 pin

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100109676