How can common noodle boiler faults be checked quickly?

Please verify the following points and require itemized written supplier responses:（commercial noodle boiler noodle-boiler-troubleshooting） Check energy supply, water level, ignition or heating action, temperature control and drainage in sequence. Do not self-repair gas leaks, electrical faults or damaged heating elements. 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.