Food safety & records · Commercial
Cooler temperature log: free PDF and guide
Print a free daily cooler temperature log. Record measured food and unit air temperatures separately, corrective actions and rechecks.
For your home & business
Information for better equipment decisions.
Practical refrigeration and HVAC guidance, safe next steps and useful records. Browse every guide below or narrow your search.
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21 guides available
Cooling problems · Residential
AC running but not cooling: safe checks before a service call
Check settings, airflow, and visible symptoms without opening equipment or attempting refrigerant repairs.
Cooling problems · Residential
Frozen AC coil or icy refrigerant line: what to do next
Ice is a symptom, not a repair diagnosis. Stop cooling, manage meltwater safely, and document what you can see.
Heating problems · Residential
Heating not working: thermostat and airflow checks, with clear safety limits
Identify a no-heat symptom without opening burners, relighting equipment, or bypassing a safety control.
Heating problems · Residential
Heat-pump defrost or a failure? Understand frost, steam, and changing sounds
Learn which observations can fit a defrost cycle and which justify a service call without forcing a defrost.
Controls and comfort · Residential
Thermostat basics: modes, fan settings, schedules, and blank displays
Understand ordinary thermostat settings without changing wiring or hidden installer configuration.
Airflow and maintenance · Residential
HVAC filters and airflow: choose the right replacement, not just the highest rating
Find the correct filter type, recognize airflow restrictions, and separate routine replacement from equipment work.
Water and drainage · Residential
Water around the air handler: condensate leaks and safe next steps
Learn where cooling water normally goes and when a puddle, wet ceiling, or shutoff needs attention.
Safety and symptoms · Residential
Unusual HVAC noises and odors: what to note and when to leave
Use sound and odor observations for a better service call without treating them as a remote diagnosis.
Airflow and maintenance · Residential
Residential HVAC maintenance: a practical owner checklist
Organize safe owner observations and professional maintenance without turning a checklist into a DIY tune-up.
Planning and decisions · Residential
Repair or replace your HVAC system? Questions for a clearer decision
Compare diagnosis, condition, comfort, repair history, and written scope rather than relying on a single age rule.
Temperature problems · Commercial
Commercial cooler running warm: protect food and document the problem
Separate food-safety decisions from equipment checks when a reach-in or walk-in is warming.
Temperature problems · Commercial
Commercial freezer frost and ice: observe the pattern, do not chip it away
Distinguish a door-area frost problem from persistent ice without forcing defrost or damaging tubing.
Doors and airflow · Commercial
Cooler and freezer door gaskets: small gaps, useful warning signs
Inspect accessible seals and door closure without treating every gap as a simple gasket replacement.
Doors and airflow · Commercial
Condenser airflow: safe housekeeping around commercial refrigeration
Keep ventilation paths clear while leaving internal coil cleaning and electrical access to trained service personnel.
Food temperature and records · Commercial
Cooler air temperature versus food temperature: record the right reading
Understand why a cabinet display and a food probe can disagree, and use each measurement for its proper purpose.
Controls and operation · Commercial
Commercial refrigeration short cycling: record the pattern before resetting
Repeated starts and stops need context, not a guessed compressor diagnosis or repeated power cycling.
Water and drainage · Commercial
Water around a commercial cooler or freezer: separate hazards from clues
Document water and ice safely without opening drains, adding chemicals, or assuming every puddle is condensate.
Controls and operation · Commercial
Refrigeration controller alarms: preserve the message and avoid blind resets
Capture exact alarm information and separate an equipment warning from a food-temperature measurement.
Planning and maintenance · Commercial
Preparing for a commercial refrigeration service visit
Gather useful records, arrange safe access, and keep food decisions with the person in charge.
Planning and maintenance · Commercial
Commercial refrigeration maintenance: divide staff checks from equipment service
Create a site-specific maintenance routine without turning kitchen staff into refrigeration technicians.
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