Zodiac pool heater cabinet shows rust and corrosion, especially near the base and around water connections.

Safety: Turn off power and gas before working around a corroded cabinet. Sharp edges may be present.

• Correct water leaks: Inspect all plumbing connections, pressure relief valves, and internal components for leaks and repair them to stop ongoing water exposure.
• Improve drainage: Ensure the heater is installed on a level, non-absorbing pad with proper drainage away from the unit. Avoid standing water around the base.
• Relocate chemical feeders: Move inline chlorinators or chemical feeders downstream and away from the heater per Zodiac guidelines to reduce corrosive fumes.
• Treat and protect metal: Light surface rust can be cleaned and treated with rust-inhibiting primer and paint. Severely corroded structural parts or panels should be replaced.
• Consider cabinet replacement: If corrosion compromises structural integrity or mounting points, replacement of cabinet panels or the entire heater may be necessary.