--- title: "Frymaster E33: the drain valve did not confirm it closed" description: "What E33 means on Frymaster E33: the drain valve did not confirm it closeds, what to check before booking, and when it is not a failure at all." url: "https://commercialappliancerepair.center/error-codes/frymaster-e33/" --- # Frymaster E33: the drain valve did not confirm it closed FilterQuick fryers drain and return oil through motor-driven valves that report their position to the controller. ## What E33 actually means. FilterQuick fryers drain and return oil through motor-driven valves that report their position to the controller. If the drain valve does not report closed, the FQ4000 logs E33 and blocks automatic filtration and top off so oil is not pumped into a vat that may be draining. A stuck valve, a failed actuator or the valve interface board are the usual suspects. Frymaster commercial appliance display · also shown as DRAIN VALVE NOT CLOSED - FILTRATION AND TOP OFF DISABLED - CALL SERVICE What to do when E33 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 Frymaster A Frymaster fryer is serviced cold: the visit waits until the oil has come down and the vat has been drained by the crew. ### Source Frymaster FilterQuick FQG30U easyTouch gas fryer manual with FQ4000 controller (error log codes, section 5.6) FQ4000 easyTouch touchscreen controller on FilterQuick fryers (FQG30U and related FilterQuick gas and electric models). E32 (drain valve not open), E34 and E35 (return valve not open or not closed) follow the same pattern. ## Before you book, in this order. Each step comes from Frymaster's own guidance for E33 on its commercial appliances. Follow it to the end: the last card says whether this is a visit. 01 Do not start another filter cycle; let the controller keep filtration disabled. 02 Check the filter pan area for oil that has leaked into the pan and keep the floor clear of drips so nobody slips. 03 Have the drain valve actuator and the valve interface board checked on a visit before the vat is refilled and heated. ### 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 E33 is not a clogged drain: when oil simply will not flow out during filtration, the FQ4000 logs E42 instead. Its twin, E32, is the same valve failing to confirm it opened. ## What you may notice with it. The commercial appliance problems E33 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 - [**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 E33 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/) ## Frymaster commercial appliances. A Frymaster fryer is serviced cold: the visit waits until the oil has come down and the vat has been drained by the crew. [Frymaster commercial appliance repair](https://commercialappliancerepair.center/brands/frymaster/) More Frymaster codes [E13](https://commercialappliancerepair.center/error-codes/frymaster-e13/) [E16](https://commercialappliancerepair.center/error-codes/frymaster-e16/) [E17](https://commercialappliancerepair.center/error-codes/frymaster-e17/) [E18](https://commercialappliancerepair.center/error-codes/frymaster-e18/) [E19](https://commercialappliancerepair.center/error-codes/frymaster-e19/) [E25](https://commercialappliancerepair.center/error-codes/frymaster-e25/) [E28](https://commercialappliancerepair.center/error-codes/frymaster-e28/) [E39](https://commercialappliancerepair.center/error-codes/frymaster-e39/) [E41](https://commercialappliancerepair.center/error-codes/frymaster-e41/) [E42](https://commercialappliancerepair.center/error-codes/frymaster-e42/) [E44](https://commercialappliancerepair.center/error-codes/frymaster-e44/) [E53](https://commercialappliancerepair.center/error-codes/frymaster-e53/) [All 15 Frymaster codes](https://commercialappliancerepair.center/error-codes/#codes-frymaster) 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/) [Hatco LO H2O](https://commercialappliancerepair.center/error-codes/hatco-lo-h2o/) [Hobart 019](https://commercialappliancerepair.center/error-codes/hobart-019/) [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 45 codes of this kind](https://commercialappliancerepair.center/error-codes/#family-water) Frymaster 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 Frymaster's own words > Drain valve was trying to close and [Frymaster FilterQuick FQG30U easyTouch gas fryer manual with FQ4000 controller (error log codes, section 5.6)](http://fm-xweb.frymaster.com/service/udocs/Manuals/8197521.pdf) [Frymaster FilterQuick FQG30U easyTouch gas fryer manual with FQ4000 controller (error log codes, section 5.6)](http://fm-xweb.frymaster.com/service/udocs/Manuals/8197521.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. FQ4000 easyTouch touchscreen controller on FilterQuick fryers (FQG30U and related FilterQuick gas and electric models). E32 (drain valve not open), E34 and E35 (return valve not open or not closed) follow the same pattern. ## Frymaster E33 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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Do not start another filter cycle; let the controller keep filtration disabled. If it comes back, it needs a visit. ### Can I still cook on a Frymaster showing E33? Only if the controller allows it and the oil is at a normal level; filtration and top off stay disabled. Many kitchens stop that vat anyway, since a drain valve that may be partly open can let hot oil into the pan. ### What is the difference between E32 and E33 on a Frymaster? E32 means the drain valve failed to confirm it opened, E33 that it failed to confirm it closed. Both come from the same valve and actuator. ### Why did my Frymaster turn off auto top off after E33? Pumping fresh oil into a vat whose drain may be open would send oil into the filter pan or onto the floor, so the controller shuts both functions off together. --- **[Read on the site: Frymaster E33: the drain valve did not confirm it closed](https://commercialappliancerepair.center/error-codes/frymaster-e33/)** **[Book a visit with CommercialApplianceRepair.center](https://commercialappliancerepair.center/schedule/)**