Toyotomi High Limit Switch (=20474506)

The Toyotomi High Limit Switch, part number 20478306, is a factory safety control component designed to monitor internal heater temperatures and shut down operation if overheating conditions are detected in compatible Toyotomi oil-fired heaters.

What’s included: One Toyotomi high limit safety switch.

Installation limits: Install only on approved Toyotomi heater models with power disconnected; follow the Toyotomi service manual to ensure proper mounting and secure electrical connections.

Compatibility: Toyotomi Toyostove Laser 30, Laser 56, Laser 60AT, Laser 73 and 73AT, Oil Miser 22, Oil Miser 23
Laser 30, High Limit Switch is located next to Screw, High Limit Switch, and Screw E.
Laser 56, High Limit Switch is located next to Heat Exchanger.
Laser 60AT, High Limit Switch is located next to Circuit Indi. Lamp.
Laser 73 and 73AT, High Limit Switch is located next to Panel Left Side and Screw, High Limit Switch.
Oil Miser 22, High Limit Switch is located next to Screw for igniter unit and Screw C.
Oil Miser 23, High Limit Switch is located next to Screw for igniter unit and Screw C.

• Factory replacement high limit safety switch
• Monitors internal heater temperature conditions
• Automatically interrupts operation during overheating
• Designed for direct fit in listed Toyotomi models
• Supports safe shutdown and system protection
• Used during safety control system service or repair

Proper operation of safety limit controls is essential for preventing overheating and maintaining safe heater performance.