Suburban ST42 Tankless Model and Control Prep

Use the Suburban ST-42 Tankless Water Heater page to capture model, controller, flow, temperature, and service details before support.

Owner-safe checklist

• Record the ST42 model, controller state, water-flow condition, temperature setting, LP odor state, and when the symptom appears.
• Save photos of the model label, controller, visible exterior condition from normal owner access, and service paperwork.
• Turn the water heater off and turn LP off for LP odor, exhaust concern, overheating, leak, or repeated unsafe behavior.
• Use Suburban support, dealer, or qualified RV water-heater service for LP system, installed power, internal parts, warranty, or repair decisions.

Official sources

• Suburban ST-42 Tankless Water Heater