--- title: "Delfield off: the control is in stand-by" description: "What off means on Delfield off: the control is in stand-bys, what to check before booking, and when it is not a failure at all." url: "https://commercialappliancerepair.center/error-codes/delfield-off/" --- # Delfield off: the control is in stand-by Holding the lower left button for five seconds puts a Delfield control into stand-by, and the display reads off with a period. ## What off actually means. Holding the lower left button for five seconds puts a Delfield control into stand-by, and the display reads off with a period. Holding it again for five seconds shows on, and the unit starts with a defrost. It is easy to trigger by accident when wiping the keypad. Delfield commercial appliance display · also shown as off. What to do when off shows on the commercial appliance ### Kind of code Mode, not a failure 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 Hold the lower left button for five seconds until the display reads on. ### Shows up as Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display A commercial appliance error code appears as letters or numbers on a combi, fryer, reach-in controller, dish machine or laundry machine display, or as a flashing light or an alarm tone. ### Make Delfield For a Delfield station that runs warm by late lunch, we time the visit to a slow hour so the pans can come out and the rail can be tested empty. ### Source Delfield 6000XL and 6100XL Series reach-ins, installation, operation and maintenance manual, part 9294254 (archived copy of the delfield.com PDF) Listed in the operation and indication table of Delfield's R290 reach-in manual (6000XL/6100XL) and prep table manual (4400/4500 Series). ## Before you book, in this order. Each step comes from Delfield's own guidance for off on its commercial appliances. Follow it to the end: the last card says whether this is a visit. 01 Hold the lower left button for five seconds until the display reads on. 02 Expect dEF next; the unit starts every restart with a defrost. 03 Check the food, and if the display will not leave off, book a visit. ### Cleared? The code is gone from the controller, the box pulls down to its set point and holds it, the vat or the cavity reaches temperature and recovers on schedule, the rinse hits its heat and the drum finishes its spin, all without a new part. If the same code comes back within a week, or during the next busy shift, mention it when you book. ### What not to do off is not a failure; the control is doing what it was told. A blank display is different and points to power or the control itself. ## What you may notice with it. The commercial appliance problems off tends to arrive with. Answer these at the commercial appliance before anyone is booked. [All problems](https://commercialappliancerepair.center/problems/) Before you call ### [Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display](https://commercialappliancerepair.center/problems/commercial-error-code/) [All 8 causes, cheapest first](https://commercialappliancerepair.center/problems/commercial-error-code/) It also comes with - [**Reach-In Cooler Not Holding Temperature Through a Shift**](https://commercialappliancerepair.center/problems/reach-in-not-holding-temperature/) Problem ### Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display 8 causes, cheapest first No repair indicated ## Nothing to repair. 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. [How to read what your commercial appliance is telling you](https://commercialappliancerepair.center/problems/commercial-error-code/) ## Delfield commercial appliances. For a Delfield station that runs warm by late lunch, we time the visit to a slow hour so the pans can come out and the rail can be tested empty. [Delfield commercial appliance repair](https://commercialappliancerepair.center/brands/delfield/) More Delfield codes [Hi](https://commercialappliancerepair.center/error-codes/delfield-hi/) [Lo](https://commercialappliancerepair.center/error-codes/delfield-lo/) [dEF](https://commercialappliancerepair.center/error-codes/delfield-def/) [E01](https://commercialappliancerepair.center/error-codes/delfield-e01/) [E02](https://commercialappliancerepair.center/error-codes/delfield-e02/) [LEA](https://commercialappliancerepair.center/error-codes/delfield-lea/) [uLi](https://commercialappliancerepair.center/error-codes/delfield-uli/) [uHi](https://commercialappliancerepair.center/error-codes/delfield-uhi/) Mode, not a failure on other makes [Alto-Shaam E100](https://commercialappliancerepair.center/error-codes/alto-shaam-e100/) [Beverage-Air dEF](https://commercialappliancerepair.center/error-codes/beverage-air-def/) [Cleveland SURECOOK light](https://commercialappliancerepair.center/error-codes/cleveland-surecook-light/) [Continental Refrigerator PG](https://commercialappliancerepair.center/error-codes/continental-refrigerator-pg/) [Dexter PUSH](https://commercialappliancerepair.center/error-codes/dexter-push/) [Frymaster E39](https://commercialappliancerepair.center/error-codes/frymaster-e39/) [Hatco Lo](https://commercialappliancerepair.center/error-codes/hatco-lo/) [Hobart 029](https://commercialappliancerepair.center/error-codes/hobart-029/) [All 28 codes of this kind](https://commercialappliancerepair.center/error-codes/#family-mode) Delfield builds this ### Commercial cold storage Reach-in and pass-through cabinets, walk-in coolers and walk-in freezers, prep and sandwich tables, undercounter units and blast chillers that hold a kitchen's food at safe temperatures. Delfield builds this ### Commercial cooking equipment Fryers, griddles, charbroilers, restaurant ranges, convection and combi ovens, steamers, kettles, holding cabinets and toasters, on gas or electric, that make up the hot side of a kitchen line. ## In Delfield's own words > Unit goes into stand-by mode. [Delfield 6000XL and 6100XL Series reach-ins, installation, operation and maintenance manual, part 9294254 (archived copy of the delfield.com PDF)](https://web.archive.org/web/20260309094403/https://www.delfield.com/wp-content/uploads/2025/10/6000_IOM-Book_del_en_9294254.pdf) [Delfield 6000XL and 6100XL Series reach-ins, installation, operation and maintenance manual, part 9294254 (archived copy of the delfield.com PDF)](https://web.archive.org/web/20260309094403/https://www.delfield.com/wp-content/uploads/2025/10/6000_IOM-Book_del_en_9294254.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Listed in the operation and indication table of Delfield's R290 reach-in manual (6000XL/6100XL) and prep table manual (4400/4500 Series). ## Delfield off commercial appliance repair, where we come out. The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered. 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Hold the lower left button for five seconds until the display reads on. ### Why does my Delfield just say off? The control is in stand-by, usually after the lower left button was held during cleaning. Hold it again for five seconds to restart. ### Why does my Delfield show dEF after I turn it back on? Delfield starts every restart with a defrost, so dEF right after on is normal. ### Is there a separate power switch on a Delfield? Delfield's 4400 and 4500 Series manual says those units also have a power disconnect switch behind the louvered end panel. --- **[Read on the site: Delfield off: the control is in stand-by](https://commercialappliancerepair.center/error-codes/delfield-off/)** **[Book a visit with CommercialApplianceRepair.center](https://commercialappliancerepair.center/schedule/)**