Mode, not a failure
29 codes
Nothing on the unit has broken; the controller is reporting a state it chose or one somebody set. A defrost pauses cooling for a scheduled melt and shows a warmer air reading for a while, a combi asks for a delime or runs its clean cycle and locks the door until it ends, a dish machine or a laundry machine sits in energy save between busy periods, and a door-open reminder beeps after a long delivery. No part is needed: letting the cycle finish, or the key sequence in the manual, brings the unit back.
- Usually leads to
- No repair — the setting is changed back
- Shows up as
- Reach-In Cooler Not Holding Temperature Through a ShiftCombi Oven Steam Problem: Weak Steam, Scale or a Dry CavityCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display
Temperature and alarms
72 codes
The controller has seen a temperature outside the band it was set for and is saying so: a box above its alarm point, a fryer vat or an oven cavity that tripped its high-limit, or a dish machine rinse that never came up to heat. Often the cause sits outside the unit, such as a door left open during a delivery, a coil packed with grease, a kitchen far hotter than the maker allows or a booster fed cold water. Checking the door, the coil and the air around the unit is fair; move the product if a cold box stays above 41°F, and book the visit.
- Usually leads to
- Reach-in and prep table repair
- Shows up as
- Walk-In Cooler Warm Above 41°F With Food InsideReach-In Cooler Not Holding Temperature Through a ShiftPrep Table Running Warm in the Top Rail and the BaseDish Machine Not Reaching Temperature on the Wash or Final RinseCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display
Sensors and probes
62 codes
A probe is handing the controller a reading it cannot trust, or none at all: a box or coil sensor torn loose from its clip, a fryer probe coated in carbon from oil left too long between filterings, a combi core probe with a kinked cable, or a connector gone green from steam and cleaning chemicals. The unit then runs on, stops, or shuts the heat or the cooling off to protect itself. Letting it cool and restarting it as the manual describes is fair; a probe that still reads wrong sits behind a panel, and that is a visit.
- Usually leads to
- Commercial controls and board repair
- Shows up as
- Reach-In Cooler Not Holding Temperature Through a ShiftCommercial Fryer Not Heating or Slow to Recover Between BasketsCommercial Convection Oven Baking Unevenly Across the RacksCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display
Compressor and cooling
16 codes
The unit is running but not moving heat out of the box the way it should. On a walk-in that is often a condensing unit on the roof choking on cottonwood or grease, a condenser fan that stopped, an evaporator fan or defrost heater that failed so the coil iced solid, or a slow refrigerant leak; a reach-in adds a door gasket or heater that lets warm air in. Cleaning the condenser face with the power off and checking that the doors close are fair first steps; the refrigerant circuit, the compressor and every line stay with a technician.
- Usually leads to
- Walk-in cooler repair
- Shows up as
- Walk-In Cooler Warm Above 41°F With Food InsideWalk-In Freezer Icing Up on the Coil, Floor and Door FrameReach-In Cooler Not Holding Temperature Through a ShiftPrep Table Running Warm in the Top Rail and the BaseCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display
Ignition and gas
15 codes
The unit tried to light and never proved a flame, or lit and then lost it. On a fryer, a griddle, a combi or a gas tumbler the ordinary reasons come first: the gas valve at the unit left partly closed after cleaning, a quick-disconnect hose not fully seated, an igniter crusted with grease or lint, a flame sensor or thermopile that no longer reads the heat, or a draft from a hood or a door pulling the pilot away. Checking the valve and running the reset the manual names are fair; if you smell gas, get everyone out first, and the gas valve, the sensor and every fitting stay with a technician.
- Usually leads to
- Commercial cooking line gas repair
- Shows up as
- Pilot Won't Stay Lit on a Fryer, Griddle or Steamer on the LineCommercial Kitchen Gas Smell Along the Cooking Line: Clear the Room FirstCommercial Fryer Not Heating or Slow to Recover Between BasketsCommercial Laundry Tumbler Not Heating: Loads Still Damp After a Full CycleCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display
Water, fill and drain
48 codes
Water is not arriving, not reaching its level, not heating or not leaving on time. A dish machine may be short of fill because a supply valve is half closed or its line strainer is clogged, it may drain slowly through a scrap basket full of debris, or its booster may be too scaled to heat the rinse; a combi's steam generator may be scaled or its water treatment exhausted; a washer-extractor may time out on a slow drain. Opening the supply valve, cleaning strainers with the unit off and checking the drain line are fair; a pump, a fill valve, a heater or a leak near wiring is a visit.
- Usually leads to
- Dish machine repair
- Shows up as
- Dish Machine Not Draining: Dirty Water Left in the TankDish Machine Not Reaching Temperature on the Wash or Final RinseCombi Oven Steam Problem: Weak Steam, Scale or a Dry CavityWater on the Commercial Kitchen Floor Near Equipment and OutletsCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display
Motors and drives
27 codes
Something that should turn is not turning, or not at the speed the controller expects. A washer-extractor's drive or its inverter may stop the spin when the load is out of balance or a bearing drags, a tumbler's belt may slip so the drum barely moves, a convection or combi fan may slow on worn bearings and bake unevenly, and a dish machine's wash pump may hum without spraying. Redistributing a load, confirming the door is latched and running the machine's own test cycle are fair; a drum, a belt or a motor is a visit, and nobody reaches into a drum that could still move.
- Usually leads to
- Commercial laundry machine repair
- Shows up as
- Commercial Laundry Machine Not Spinning: Loads Left Soaking WetCommercial Laundry Tumbler Not Heating: Loads Still Damp After a Full CycleCommercial Convection Oven Baking Unevenly Across the RacksCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display
Controls and power
65 codes
The controller itself is reporting trouble, or the supply behind it is: a display with dead segments, a keypad that stopped responding after steam or degreaser got behind it, relays that stick, stored recipes or cycles that vanished overnight, a blown control fuse, or one leg of a three-phase feed missing so half the heat or the pump is gone. A full power cycle at the breaker, done as the manual describes, clears a passing glitch; a code that returns, a scorched smell or any sign of moisture behind the panel means the breaker stays off, and that is a visit.
- Usually leads to
- Commercial controls and board repair
- Shows up as
- Restaurant Equipment Burning Smell: Scorched Oil, Hot Wiring or LintCommercial Convection Oven Baking Unevenly Across the RacksCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display
