Lucy Martinez specializes in refrigeration diagnostics — the art of reading a fault code and knowing exactly which thermistor, board, or door switch is at fault. Over fourteen years she has developed deep expertise in wine coolers, dual-zone wine refrigerators, clear and crescent ice machines, and the control electronics common to modern connected refrigeration.
She leads error-code and troubleshooting content on this site, ensuring each diagnostic guide is accurate, safe, and genuinely helpful. Lucy holds an EPA Section 608 Universal certification and a Certified Appliance Professional (CAP) credential.
