--- title: "Blodgett Quench Probe Error: the drain cooling probe gives an impossible reading" description: "What Quench Probe Error means on Blodgett Quench Probe Error: the drain cooling probe gives an impossible readings, what to check before booking, and when it is…" url: "https://commercialappliancerepair.center/error-codes/blodgett-quench-probe-error/" --- # Blodgett Quench Probe Error: the drain cooling probe gives an impossible reading Steam and condensate leave a Blodgett combi through a drain, where cold water is sprayed in to cool it before it reaches the building plumbing. ## What Quench Probe Error actually means. Steam and condensate leave a Blodgett combi through a drain, where cold water is sprayed in to cool it before it reaches the building plumbing. A quench probe watches that drain temperature. When its reading is out of range, the control shows Quench Probe Error and can no longer confirm the drain is being cooled. Blodgett commercial appliance display · also shown as Quench Probe Error What to do when Quench Probe Error 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 Blodgett A Blodgett visit tends to land early in the morning, before the first sheet pans go in and while the cavity is still cold. ### Source Blodgett combi and HydroVection control error codes service sheet Listed on Blodgett's error codes service sheet for its combi and HydroVection electronic controls; the sheet does not name individual models. Blodgett's L-974 kit lists the quench probe as one of its diagnostic inputs. ## Before you book, in this order. Each step comes from Blodgett's own guidance for Quench Probe Error on its commercial appliances. Follow it to the end: the last card says whether this is a visit. 01 Check that the cold water supply valve to the oven is open. 02 Look at the drain line under the oven for kinks or a disconnected hose. 03 Restart once; if the error stays, arrange service for the quench probe and its wiring. ### 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 Quench Probe Error is not a steam generation problem, and it does not describe the cavity temperature. It concerns the drain cooling system only. ## What you may notice with it. The commercial appliance problems Quench Probe Error 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 Where Quench Probe Error 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/) ## Blodgett commercial appliances. A Blodgett visit tends to land early in the morning, before the first sheet pans go in and while the cavity is still cold. [Blodgett commercial appliance repair](https://commercialappliancerepair.center/brands/blodgett/) More Blodgett codes [Cavity Probe Error](https://commercialappliancerepair.center/error-codes/blodgett-cavity-probe-error/) [Cavity High Temp Error](https://commercialappliancerepair.center/error-codes/blodgett-cavity-high-temp-error/) [High Temp Error](https://commercialappliancerepair.center/error-codes/blodgett-high-temp-error/) [Cooling Fan Probe Error](https://commercialappliancerepair.center/error-codes/blodgett-cooling-fan-probe-error/) [Fan Error](https://commercialappliancerepair.center/error-codes/blodgett-fan-error/) [Com Error](https://commercialappliancerepair.center/error-codes/blodgett-com-error/) [No Heat Error](https://commercialappliancerepair.center/error-codes/blodgett-no-heat-error/) [Boiler High Temp Error](https://commercialappliancerepair.center/error-codes/blodgett-boiler-high-temp-error/) [Boiler Hi Limit Switch](https://commercialappliancerepair.center/error-codes/blodgett-boiler-hi-limit-switch/) [Boiler Probe Error](https://commercialappliancerepair.center/error-codes/blodgett-boiler-probe-error/) [Water Level Error](https://commercialappliancerepair.center/error-codes/blodgett-water-level-error/) [Delime Error](https://commercialappliancerepair.center/error-codes/blodgett-delime-error/) [All 15 Blodgett codes](https://commercialappliancerepair.center/error-codes/#codes-blodgett) 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/) [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/) [Hatco E1](https://commercialappliancerepair.center/error-codes/hatco-e1/) [All 59 codes of this kind](https://commercialappliancerepair.center/error-codes/#family-sensor) Blodgett 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 Blodgett's own words > Quench Probe Error= The Quench probe reading is less than 32˚F or greater than 575˚F. [Blodgett combi and HydroVection control error codes service sheet](https://www.blodgett.com/custom/PDF/service/Error-codes.pdf) [Blodgett L-974 relay board resistor plug kit instructions (combi and HydroVection ovens)](https://www.blodgett.com/custom/PDF/service/L-974-probe-error-diagnostics.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Listed on Blodgett's error codes service sheet for its combi and HydroVection electronic controls; the sheet does not name individual models. Blodgett's L-974 kit lists the quench probe as one of its diagnostic inputs. ## Blodgett Quench Probe Error 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 that the cold water supply valve to the oven is open. If it comes back, it needs a visit. ### What does quench mean on a Blodgett combi? It is the cold water spray that cools steam and hot water in the drain before they reach the plumbing. ### Can Quench Probe Error on a Blodgett damage my drain? If the quench stops working, very hot water can reach drain piping that is not rated for it. Get the probe checked. ### Does a Blodgett HydroVection oven have a quench probe? Yes. Blodgett's diagnostic kit instructions list it for combi and HydroVection ovens. --- **[Read on the site: Blodgett Quench Probe Error: the drain cooling probe gives an impossible reading](https://commercialappliancerepair.center/error-codes/blodgett-quench-probe-error/)** **[Book a visit with CommercialApplianceRepair.center](https://commercialappliancerepair.center/schedule/)**