WPL Thermostat Water Heater Limit Switch Kit 12V & 120V — Complete Suburban SW-Series Replacement with Overheat Protection

If your RV's hot water heater is failing to reach set temperatures, overheats, or won't maintain safe operation, this kit provides the two common thermostat/limit switches plus a power control switch and wiring to get the unit back to reliable service. Designed for Suburban SW-series models, the kit replaces OEM parts like 232306, 232282, 233534, 525002 and 525007 and fits a wide range of SW6, SW10, SW12 and SW16 variants.

How does this kit restore temperature control?

The kit includes a 120VAC thermostat (232306) and a 12VDC thermostat (232282) that together manage heating and safety cutoff. When installed, the thermostats sense water temperature and either complete or interrupt the heating circuit to maintain the set range and prevent overheating.

• 232306 (120VAC) automatic range: 113°F–140°F for household AC operation.
• 232282 (12VDC) automatic range: 122°F–140°F for DC systems.
• Built-in limit switch interrupts power during overheating to protect the element.

What models and problems does it fix?

This kit is made for Suburban SW series water heaters including SW6D, SW6DE, SW10DE, SW12DEL, SW16DEM and other SW6/10/12/16 variants. It resolves common faults like thermostat failure, intermittent heating, and lack of temperature regulation.

• Direct replacement for part numbers 232306, 232282, 233534, 525002, 525007.
• Solves issues such as no heat, overheating, and unsafe temperature rise.
• Restores both operational control and safety cutoff functions.

What’s included and how difficult is installation?

The kit ships with both thermostat switches, a power control switch, wire nuts and four terminal wires—providing everything typically required for a full thermostat/limit swap. Basic electrical skills and common hand tools are enough for most RV owners; the process involves power disconnection, wiring replacement, and reassembly.

• Package: 1 x 232306, 1 x 232282, 1 x power control switch, 2 x wire nuts, 4 x terminal wires.
• Installation steps: disconnect power → remove old module → connect kit wiring → secure components → test operation.
• Recommended: follow vehicle service manual and verify power is off before working.

What are the material and reliability features?

Constructed from high-temperature resistant plastics and metal contacts, the thermostats are designed to tolerate the vibration, humidity and heat cycles common in RV water heaters. Good conductivity and durable materials help maintain stable operation under repeated use.

• High-temp plastic housing resists deformation near heating elements.
• Metal terminals provide reliable conductivity and low voltage drop.
• Designed to withstand RV vibration and moisture in typical installations.

Who this is for: RV owners, mobile-home technicians or DIYers who need a reliable and complete thermostat replacement for Suburban SW-series water heaters. If your unit shows erratic heating, fails to shut off at safe temperatures, or lists one of the replaced part numbers, this WPL kit supplies compatible 12V and 120V components and the wiring to restore correct temperature control and safety protection.