--- title: "Hatco E2: the humidity sensor in the holding cabinet has stopped reading" description: "What E2 means on Hatco E2: the humidity sensor in the holding cabinet has stopped readings, what to check before booking, and when it is not a failure at all." url: "https://commercialappliancerepair.center/error-codes/hatco-e2/" --- # Hatco E2: the humidity sensor in the holding cabinet has stopped reading Humidified Flav-R-Savor cabinets heat a water reservoir to add moisture, and a separate sensor watches that side. ## What E2 actually means. Humidified Flav-R-Savor cabinets heat a water reservoir to add moisture, and a separate sensor watches that side. E2 appears on the cabinet temperature display when that humidity sensor malfunctions. The cabinet may still hold heat, but moisture control is gone, so food can dry out or the water heater can run without proper supervision. Hatco commercial appliance display · also shown as E2 What to do when E2 shows on the commercial appliance ### Kind of code Sensors and probes 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 Controllers, touch panels, relays, contactors and interlocks tested, and replaced only when the evidence says so. ### 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 Hatco Hatco equipment is often checked in the gap between breakfast and lunch, when the station it serves can do without it for a short while. ### Source Hatco Flav-R-Savor FSHC-5W and FSHC-7W portable holding cabinet installation and operating manual Flav-R-Savor FSHC-5W and FSHC-7W portable holding cabinets with the humidity system. ## Before you book, in this order. Each step comes from Hatco's own guidance for E2 on its commercial appliances. Follow it to the end: the last card says whether this is a visit. 01 Check held items for drying and move sensitive food such as breads or proteins to another unit if needed. 02 Look at the water reservoir and keep it filled as normal while you arrange service. 03 Book a visit; the humidity sensor and its connection are not owner parts. ### Still there? It usually turns into [commercial controls and board repair](https://commercialappliancerepair.center/services/commercial-controls-and-board-repair/). Book with the code and the model number. ### What not to do E2 is not an empty reservoir signal; the reservoir having no water is its own condition in the troubleshooting table. It is also different from E1, which covers the air sensor. ## What you may notice with it. The commercial appliance problem E2 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/) Problem ### Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display 8 causes, cheapest first Where E2 usually leads ## Commercial controls and board repair. **Controller, touch panel, probe or sensor, relay, contactor, power supply, door switch or interlock, tested before anything is changed · moderate.** Book a visit [What the job involves](https://commercialappliancerepair.center/services/commercial-controls-and-board-repair/) ## Hatco commercial appliances. Hatco equipment is often checked in the gap between breakfast and lunch, when the station it serves can do without it for a short while. [Hatco commercial appliance repair](https://commercialappliancerepair.center/brands/hatco/) More Hatco codes [E1](https://commercialappliancerepair.center/error-codes/hatco-e1/) [LO H2O](https://commercialappliancerepair.center/error-codes/hatco-lo-h2o/) [Lo](https://commercialappliancerepair.center/error-codes/hatco-lo/) [Temperature Probe Error](https://commercialappliancerepair.center/error-codes/hatco-temperature-probe-error/) [Control Board Overtemp](https://commercialappliancerepair.center/error-codes/hatco-control-board-overtemp/) [Heating Error](https://commercialappliancerepair.center/error-codes/hatco-heating-error/) [Communication Error](https://commercialappliancerepair.center/error-codes/hatco-communication-error/) [Touch Panel Error](https://commercialappliancerepair.center/error-codes/hatco-touch-panel-error/) [Top Element Is Out](https://commercialappliancerepair.center/error-codes/hatco-top-element-is-out/) [Fan Is Stopped](https://commercialappliancerepair.center/error-codes/hatco-fan-is-stopped/) [Clean Fan Filters](https://commercialappliancerepair.center/error-codes/hatco-clean-fan-filters/) [Clean Right Product Sensor](https://commercialappliancerepair.center/error-codes/hatco-clean-right-product-sensor/) [All 15 Hatco codes](https://commercialappliancerepair.center/error-codes/#codes-hatco) Sensors and probes on other makes [Alto-Shaam E20](https://commercialappliancerepair.center/error-codes/alto-shaam-e20/) [Beverage-Air E01](https://commercialappliancerepair.center/error-codes/beverage-air-e01/) [Blodgett Cavity Probe Error](https://commercialappliancerepair.center/error-codes/blodgett-cavity-probe-error/) [Continental Refrigerator E0](https://commercialappliancerepair.center/error-codes/continental-refrigerator-e0/) [Delfield E01](https://commercialappliancerepair.center/error-codes/delfield-e01/) [Dexter TEMP SENSOR SHORT](https://commercialappliancerepair.center/error-codes/dexter-temp-sensor-short/) [Frymaster E13](https://commercialappliancerepair.center/error-codes/frymaster-e13/) [Garland E21](https://commercialappliancerepair.center/error-codes/garland-e21/) [All 59 codes of this kind](https://commercialappliancerepair.center/error-codes/#family-sensor) Hatco 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. Hatco 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. Hatco builds this ### Commercial dish machines Undercounter, door-type and conveyor dish machines with their booster heaters and chemical feeds, the warewashing station that washes and sanitizes every rack before it goes back on the line. ## In Hatco's own words > E2 = Humidity temperature sensor malfunctioning. [Hatco Flav-R-Savor FSHC-5W and FSHC-7W portable holding cabinet installation and operating manual](https://www.hatcocorp.com/cms/IOMANUALS/000000012716981-00000-20120607.PDF) [Hatco Flav-R-Savor FSHC-5W and FSHC-7W portable holding cabinet installation and operating manual](https://www.hatcocorp.com/cms/IOMANUALS/000000012716981-00000-20120607.PDF) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Flav-R-Savor FSHC-5W and FSHC-7W portable holding cabinets with the humidity system. ## Hatco E2 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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Check held items for drying and move sensitive food such as breads or proteins to another unit if needed. If it comes back, it needs a visit. ### Will food dry out in a Hatco cabinet that shows E2? It can, because the cabinet no longer controls moisture well. Shorten hold times until the sensor is replaced. ### Is it safe to keep filling the water in a Hatco cabinet with E2? Yes, fill it as usual and do not overfill. The code concerns the sensor, not the water supply. ### Why does my Hatco cabinet show E2 after deliming? A sensor or connector disturbed or wet during cleaning can do it. When a power restart leaves it on screen, arrange service. --- **[Read on the site: Hatco E2: the humidity sensor in the holding cabinet has stopped reading](https://commercialappliancerepair.center/error-codes/hatco-e2/)** **[Book a visit with CommercialApplianceRepair.center](https://commercialappliancerepair.center/schedule/)**