Heater cabinet shows corrosion, rust, or paint bubbling, especially near coil and base.

Safety first: Turn off power before performing any cleaning or minor repairs.

• Improve environment: Relocate chemical storage away from the heater and ensure good drainage around the pad.
• Clean surfaces: Rinse the cabinet and coil regularly with fresh water in coastal or corrosive environments, following AquaCal guidelines.
• Touch‑up paint: Sand light rust and apply corrosion‑resistant touch‑up paint compatible with AquaCal cabinets.
• Structural damage: If corrosion has compromised structural integrity or coil tubing, have a technician evaluate for cabinet or coil replacement.