Maintenance should be performed by a qualified technician at intervals per code or manufacturer.

Prepare for the TFM-04 Fire Extinguisher License – A with comprehensive flashcards and multiple choice questions. Each question offers hints and explanations. Get ready for your exam!

Maintenance is governed by formal schedules and trained personnel. While daily or monthly checks by the user help confirm accessibility, placement, and overall condition, the actual maintenance—inspecting internal components, confirming the pressure and seals, ensuring the agent is correct, and performing any necessary service or hydrostatic tests—must be done by a qualified technician at intervals specified by code or the manufacturer. Following these intervals ensures the extinguisher will operate reliably in an emergency, with a verified charge, intact seals, and no hidden corrosion or leaks. Skipping professional maintenance, performing it only after the device has been used, or treating it as optional can lead to a device that fails to discharge properly when needed.