What risk occurs when a thermostat sticks closed?

A stuck contact can cause continuous heating, overheating, burning, alarms and potential fire risk. Stop using the equipment and have it serviced if temperature runs away. Checklist: Define capacity, accuracy, materials and operating environment before requesting quotes on a uniform basis. Request specification sheets, test reports, certificates, maintenance manuals and spare-part lists. During acceptance, verify appearance, dimensions, functions, safety protection and packaging, and keep test records. Do not compare unit price alone; include customization, freight, spare parts, after-sales support and downtime risk. Keep written records of inquiries, confirmations, FAT, acceptance and warranty commitments.