What causes this specific harness to fail

leak-free installation in the refrigerant line

visible oil leaks

and Ice-O-Matic units with tin or nickel evaporators

White-Rodgers F29-0222 Tstat Guard What causes this specific harnessThe White Rodgers F29 0222 Metal Tstat Guard is a job site essential for securing HVAC controls in heavy traffic environments. Engineered with a ring base for versatile mounting, this universal size steel thermostat guard provides a physical barrier against unauthorized temperature adjustments. The unit features a durable 18 gauge steel cover and a 22 gauge frame, finished in a neutral beige enamel to resist corrosion and blending with industrial