Problem guides
Start from the symptom
Pick what the machine is doing. Each guide separates documented causes from hypotheses and tells you when to stop.
Commercial freezer not cooling
Cabinet above set point with the compressor still running
4 possible causes · verified 2026-10-13
Walk-in cooler temperature drifting overnight
Temperature rise overnight with normal daytime operation
3 possible causes · verified 2026-10-10
Ice machine beeping or flashing
Audible alarm, flashing display, little or no ice
4 possible causes · verified 2026-10-07
Commercial dishwasher not draining
Standing water in the wash tank after draining
3 possible causes · verified 2026-10-04
Combi oven error on the display
Cycle interrupted and a code displayed
3 possible causes · verified 2026-10-01
Espresso machine below pressure
Low pressure gauge reading, poor extraction
3 possible causes · verified 2026-09-28
Washer-extractor will not spin
Wash completes, no or partial extraction
3 possible causes · verified 2026-09-25
Air compressor overheating
Shutdown after running hot, temperature alarm logged
3 possible causes · verified 2026-09-22
VRF system not cooling one zone
A single zone reports no cooling
3 possible causes · verified 2026-09-19
Pump tripping on dry run
Alarm logged as dry run or low flow
3 possible causes · verified 2026-09-16