--- title: "Alto-Shaam E100: a maintenance reminder is overdue" description: "What E100 means on Alto-Shaam E100: a maintenance reminder is overdues, what to check before booking, and when it is not a failure at all." url: "https://commercialappliancerepair.center/error-codes/alto-shaam-e100/" --- # Alto-Shaam E100: a maintenance reminder is overdue The CTP keeps preventive maintenance timers for descaling, the water filter, cleaning, the ventless hood filter and the door gasket. ## What E100 actually means. The CTP keeps preventive maintenance timers for descaling, the water filter, cleaning, the ventless hood filter and the door gasket. E100 is called out when one expires without action. The manual asks you to open the maintenance reminder screen, do the item and reset it. Alto-Shaam commercial appliance display What to do when E100 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 Open the maintenance reminder screen to see which item has timed out. ### 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 Alto-Shaam An Alto-Shaam call is usually booked for the hours between the last plate and the prep crew, so the cabinet can cool and the tech can open it without holding up service. ### Source Alto-Shaam Combitherm CT PROformance Series operator's manual, MN-35948 Rev 21 (10/21) (Wayback copy) Combitherm CTP with the preventive maintenance screen, per MN-35948 Rev 21, which lists maintenance codes 1001 to 1005. ## Before you book, in this order. Each step comes from Alto-Shaam's own guidance for E100 on its commercial appliances. Follow it to the end: the last card says whether this is a visit. 01 Open the maintenance reminder screen to see which item has timed out. 02 Do that task, such as descaling or changing the water filter, and reset its timer. 03 Book a visit if the item is one you do not handle in house, such as a worn door gasket. ### 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 E100 does not report a failure; the oven is asking for routine care. The maintenance codes 1001 to 1005 on the same screen name which task is due. ## What you may notice with it. The commercial appliance problems E100 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 - [**Combi Oven Steam Problem: Weak Steam, Scale or a Dry Cavity**](https://commercialappliancerepair.center/problems/combi-oven-steam-problem/) 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/) ## Alto-Shaam commercial appliances. An Alto-Shaam call is usually booked for the hours between the last plate and the prep crew, so the cabinet can cool and the tech can open it without holding up service. [Alto-Shaam commercial appliance repair](https://commercialappliancerepair.center/brands/alto-shaam/) More Alto-Shaam codes [E01](https://commercialappliancerepair.center/error-codes/alto-shaam-e01/) [E02](https://commercialappliancerepair.center/error-codes/alto-shaam-e02/) [E03](https://commercialappliancerepair.center/error-codes/alto-shaam-e03/) [E13](https://commercialappliancerepair.center/error-codes/alto-shaam-e13/) [E20](https://commercialappliancerepair.center/error-codes/alto-shaam-e20/) [E21](https://commercialappliancerepair.center/error-codes/alto-shaam-e21/) [E34](https://commercialappliancerepair.center/error-codes/alto-shaam-e34/) [E36](https://commercialappliancerepair.center/error-codes/alto-shaam-e36/) [E57](https://commercialappliancerepair.center/error-codes/alto-shaam-e57/) [E89](https://commercialappliancerepair.center/error-codes/alto-shaam-e89/) [E92](https://commercialappliancerepair.center/error-codes/alto-shaam-e92/) [E105](https://commercialappliancerepair.center/error-codes/alto-shaam-e105/) [All 15 Alto-Shaam codes](https://commercialappliancerepair.center/error-codes/#codes-alto-shaam) Mode, not a failure on other makes [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/) [Delfield dEF](https://commercialappliancerepair.center/error-codes/delfield-def/) [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 29 codes of this kind](https://commercialappliancerepair.center/error-codes/#family-mode) Alto-Shaam 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. Alto-Shaam 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 Alto-Shaam's own words > When any maintenance reminder has expired without action having been taken by the operator. [Alto-Shaam Combitherm CT PROformance Series operator's manual, MN-35948 Rev 21 (10/21) (Wayback copy)](https://web.archive.org/web/20220509173647/https://www.alto-shaam.com/en/media-library/widen-assets/technical-literature/operators-manual/operators-manual_combitherm_ctp_mn-35948-en-18-pdf.pdf) [Alto-Shaam Combitherm CT PROformance Series operator's manual, MN-35948 Rev 21 (10/21) (Wayback copy)](https://web.archive.org/web/20220509173647/https://www.alto-shaam.com/en/media-library/widen-assets/technical-literature/operators-manual/operators-manual_combitherm_ctp_mn-35948-en-18-pdf.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Combitherm CTP with the preventive maintenance screen, per MN-35948 Rev 21, which lists maintenance codes 1001 to 1005. ## Alto-Shaam E100 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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Open the maintenance reminder screen to see which item has timed out. ### Is E100 on an Alto-Shaam an actual problem? No. It is a reminder that a scheduled task is overdue. Do the task and reset the timer. ### Which tasks can trigger E100 on an Alto-Shaam CTP? Descaling the steam generator, checking the water filter, overdue cleaning, the ventless hood filter and the door gasket check. ### Why does my Alto-Shaam keep showing E100? The timer was probably cleared without the task being reset on the reminder screen. Open the screen and reset the item once the work is done. --- **[Read on the site: Alto-Shaam E100: a maintenance reminder is overdue](https://commercialappliancerepair.center/error-codes/alto-shaam-e100/)** **[Book a visit with CommercialApplianceRepair.center](https://commercialappliancerepair.center/schedule/)**