American Water Heaters 100093812 Door Switch

Product Description

The American Water Heaters 100093812 is a door switch replacement part designed for use in residential water heater systems. The door switch serves as a safety interlock component, interrupting the circuit when the access panel or combustion chamber door is opened during operation. This prevents the burner or ignition system from firing while the unit is exposed. Installation is typically performed by licensed plumbers or water heater service technicians as part of routine maintenance or component-level repair.

This door switch is intended for use in water heater systems where the original switch has failed or become damaged, resulting in burner lockout or ignition faults. It restores proper safety interlock function and allows normal burner operation once the access door is confirmed closed. Technicians encountering a unit that will not ignite despite normal gas and electrical supply should inspect the door switch as part of standard diagnostic procedure.

Key Features

• Safety interlock design prevents burner operation when access door is open
• Direct replacement for original door switch in compatible American Water Heaters units
• Restores proper ignition and burner control circuit function
• OEM part number 100093812 ensures correct fitment

Compatibility

Designed as an OEM-style replacement door switch for compatible American Water Heaters residential water heater models. Verify the part number against the unit's data label or service documentation before installation.

Installation Notes

Installation should be performed by a licensed plumber or qualified water heater service technician. Before servicing, shut off gas supply and disconnect electrical power to the unit. Door switches are typically low-voltage components connected to the ignition control circuit — handle wiring connections carefully and ensure all connectors are fully seated before restoring power. Refer to the unit's service manual and applicable local codes for guidance.

Technical Specifications

• Part Type: Door Switch

Standard Information

• Brand: American Water Heaters
• Manufacturer Part Number: 100093812