WPL RV Water Heater Thermostat & High-Limit Switch Kit 12V & 120V, Dual-Range Overheat Protection

The WPL 232306 & 232282 kit is a complete replacement thermostat and high-limit switch set for Suburban-style RV water heaters, providing 12V and 120V temperature control and safety cutoff in one package.

If your RV’s water heater has stopped holding temperature, overheats, or fails to shut off, this kit supplies the commonly used 232306 (120VAC) and 232282 (12VDC) thermostat/limit switches plus a power control switch and wiring accessories needed for repair. Constructed from heat-resistant plastics and metal contacts, the assembly is built to withstand vibration and humid conditions typically found in mobile applications. The dual-range thermostats offer precise regulation and an automatic cutoff when temperatures rise beyond safe limits.

How does this kit restore my RV water heater’s temperature control?

When a thermostat or limit switch fails, the heater may not reach set temperatures or may run continuously. Replacing the old components with the included 232306 and 232282 switches returns the heater’s sensing and cutoff functions to factory-like behavior. The kit includes both the 120V and 12V elements so you cover the common control circuits in Suburban SW-series units.

• Replaces worn or damaged thermostat and high-limit switches (232306, 232282 compatible)
• Restores automatic temperature regulation and overheat cutoff
• Includes power control switch and wiring for a full repair

What temperature ranges and safety features do the thermostats provide?

The two thermostats are calibrated to different automatic ranges: the 120VAC 232306 typically adjusts between 113°F and 140°F, while the 12VDC 232282 operates from roughly 122°F to 140°F. Both units include an automatic cutoff when temperatures exceed their top range, preventing overheating and reducing the risk of dry-fire damage. They act as both control and protective devices for the heater element and tank environment.

• 232306 (120VAC): approx. 113°F–140°F adjustment range
• 232282 (12VDC): approx. 122°F–140°F adjustment range
• Automatic circuit interruption on excessive temperature

What’s included and how difficult is installation?

The kit ships with both thermostat/limit switches, a separate power control switch, four terminal wires and two wire nuts so you won’t need extra parts for most repairs. Basic mechanical and electrical skills are required: disconnect power, remove the old assembly, wire the new components, secure them into place, then test. Clear, stepwise connections reduce installation time for someone familiar with RV appliance service.

• Includes: 232306, 232282, power control switch, 4 terminal wires, 2 wire nuts
• Basic wiring and mechanical installation — follow safety steps and power down first
• Compatible with many Suburban SW-series models (see product fit list)

Will this kit fit my Suburban SW-series water heater?

The kit is designed to replace common OEM numbers such as 232306 and 232282 and fits a wide range of Suburban SW models (for example SW6D, SW6DE, SW10DE, SW12DE, SW16DE and many variants). Verify compatibility with your model designation and compare terminal layout before installation. If in doubt, check your existing thermostat part numbers against the kit’s replacements.

• Compatible with numerous Suburban SW-series variants and model numbers
• Replacement for parts like 232306, 233534, 525002, 525007, and 232282
• Compare terminal layout and voltage (12V vs 120V) before swapping parts

Who is this for: RV owners, fleet maintenance technicians, and DIYers who need a reliable, ready-to-install replacement for failed thermostat and limit switches in Suburban-style water heaters. The kit is ideal when you want a full repair pack that restores temperature control and safety cutoff without sourcing multiple separate components.