--- title: "Hobart 021: water left in the tank after draining" description: "What 021 means on Hobart 021: water left in the tank after drainings, what to check before booking, and when it is not a failure at all." url: "https://commercialappliancerepair.center/error-codes/hobart-021/" --- # Hobart 021: water left in the tank after draining At the end of a drain cycle the LXn checks the tank level. ## What 021 actually means. At the end of a drain cycle the LXn checks the tank level. If a lot of water is still there, the screen reads Drain hose is clogged with 021. Hobart's first steps are a clear tank bottom and a straight, clean drain hose. Hobart commercial appliance display · also shown as Error 021 What to do when 021 shows on the commercial appliance ### Kind of code Water, fill and drain 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 Undercounter, door-type and conveyor dish machines: tank heaters, boosters, wash pumps, fill and drain valves. ### 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 Hobart A Hobart dish machine that stops holding its rinse heat is usually seen right after the lunch racks clear, so the tank can drain and cool. ### Source Hobart LXn / LXGn series instructions manual F41243 (10-23), error code chart Hobart LXn and LXGn undercounter machines (LXnC, LXnH, LXnR, LXGnPR, LXGnR) with the touchscreen control, per instructions manual F41243. AM16, CL and FT2000 machines use their own displays and are not covered by this chart. ## Before you book, in this order. Each step comes from Hobart's own guidance for 021 on its commercial appliances. Follow it to the end: the last card says whether this is a visit. 01 Switch the machine off and let the wash water cool. 02 Clear any debris from the bottom of the tank and around the strainer. 03 Follow the drain hose from the back of the machine and straighten any kink or low loop where grease can settle. 04 Run the drain again; water that still will not leave points to the drain pump, which is a service item. ### Still there? It usually turns into [dish machine repair](https://commercialappliancerepair.center/services/dish-machine-repair/). Book with the code and the model number. ### What not to do 021 is not a blocked strainer; that is 019. It is also different from 022, which catches a water level that drops during the wash rather than water left after draining. ## What you may notice with it. The commercial appliance problems 021 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 - [**Dish Machine Not Draining: Dirty Water Left in the Tank**](https://commercialappliancerepair.center/problems/dish-machine-not-draining/) - [**Water on the Commercial Kitchen Floor Near Equipment and Outlets**](https://commercialappliancerepair.center/problems/commercial-water-on-the-floor/) Problem ### Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display 8 causes, cheapest first Where 021 usually leads ## Dish machine repair. **Dish machine tank heater or booster element, thermostat, fill valve, float switch, drain valve, wash pump seal or motor, conveyor drive · moderate.** Book a visit [What the job involves](https://commercialappliancerepair.center/services/dish-machine-repair/) ## Hobart commercial appliances. A Hobart dish machine that stops holding its rinse heat is usually seen right after the lunch racks clear, so the tank can drain and cool. [Hobart commercial appliance repair](https://commercialappliancerepair.center/brands/hobart/) More Hobart codes [003](https://commercialappliancerepair.center/error-codes/hobart-003/) [019](https://commercialappliancerepair.center/error-codes/hobart-019/) [029](https://commercialappliancerepair.center/error-codes/hobart-029/) [032](https://commercialappliancerepair.center/error-codes/hobart-032/) [033](https://commercialappliancerepair.center/error-codes/hobart-033/) [035](https://commercialappliancerepair.center/error-codes/hobart-035/) [038](https://commercialappliancerepair.center/error-codes/hobart-038/) [049](https://commercialappliancerepair.center/error-codes/hobart-049/) [057](https://commercialappliancerepair.center/error-codes/hobart-057/) [070](https://commercialappliancerepair.center/error-codes/hobart-070/) [074](https://commercialappliancerepair.center/error-codes/hobart-074/) [080](https://commercialappliancerepair.center/error-codes/hobart-080/) [All 15 Hobart codes](https://commercialappliancerepair.center/error-codes/#codes-hobart) Water, fill and drain on other makes [Alto-Shaam E01](https://commercialappliancerepair.center/error-codes/alto-shaam-e01/) [Blodgett Water Level Error](https://commercialappliancerepair.center/error-codes/blodgett-water-level-error/) [Cleveland LOW WATER light](https://commercialappliancerepair.center/error-codes/cleveland-low-water-light/) [Dexter F2](https://commercialappliancerepair.center/error-codes/dexter-f2/) [Frymaster E33](https://commercialappliancerepair.center/error-codes/frymaster-e33/) [Hatco LO H2O](https://commercialappliancerepair.center/error-codes/hatco-lo-h2o/) [Miele Professional F18](https://commercialappliancerepair.center/error-codes/miele-professional-f18/) [Pitco DRAINING TURN OFF](https://commercialappliancerepair.center/error-codes/pitco-draining-turn-off/) [All 44 codes of this kind](https://commercialappliancerepair.center/error-codes/#family-water) Hobart 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 Hobart's own words > Significant water remains in wash tank after drain cycle. [Hobart LXn / LXGn series instructions manual F41243 (10-23), error code chart](https://www.hobartcorp.com/sites/default/files/webdam-assets/LXn%20Dishwashers%20Instructions%20Manual%20F41243%20(10-23).pdf) [Hobart LXn / LXGn series instructions manual F41243 (10-23), error code chart](https://www.hobartcorp.com/sites/default/files/webdam-assets/LXn%20Dishwashers%20Instructions%20Manual%20F41243%20(10-23).pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Hobart LXn and LXGn undercounter machines (LXnC, LXnH, LXnR, LXGnPR, LXGnR) with the touchscreen control, per instructions manual F41243. AM16, CL and FT2000 machines use their own displays and are not covered by this chart. ## Hobart 021 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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Switch the machine off and let the wash water cool. If it comes back, it needs a visit. ### Where is the drain hose on a Hobart undercounter? It runs from the back of the machine to the floor drain or sink connection. Pulling the machine forward to reach it is often needed, so do it only after the water has cooled and the power is off. ### Can I bail the water out of a Hobart that shows 021? Once it has cooled and the power is off, yes. Clearing the tank and the hose, then draining again, is what Hobart asks for before a service call. ### Why does 021 come back a day after I cleared it? A grease plug further down the drain line, or a drain pump that is weakening, both return quickly. That repeat is the time to book a visit. --- **[Read on the site: Hobart 021: water left in the tank after draining](https://commercialappliancerepair.center/error-codes/hobart-021/)** **[Book a visit with CommercialApplianceRepair.center](https://commercialappliancerepair.center/schedule/)**