--- title: "Blodgett Cavity Probe Error: the combi cannot read its oven temperature" description: "What Cavity Probe Error means on Blodgett Cavity Probe Error: the combi cannot read its oven temperatures, what to check before booking, and when it is not a…" url: "https://commercialappliancerepair.center/error-codes/blodgett-cavity-probe-error/" --- # Blodgett Cavity Probe Error: the combi cannot read its oven temperature Every Blodgett combi and HydroVection control bases its heat decisions on one cavity probe. ## What Cavity Probe Error actually means. Every Blodgett combi and HydroVection control bases its heat decisions on one cavity probe. If that probe claims the oven is colder than freezing or hotter than 575°F, the reading is impossible for normal use, so the control posts Cavity Probe Error and stops trusting it. A cracked probe, a pinched lead or a loose plug at the relay board are the usual reasons. Blodgett commercial appliance display · also shown as Cavity Probe Error What to do when Cavity 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 MenuSelect BC20 control service guide Blodgett BC-20 combi ovens with the MenuSelect control (MenuSelect BC20 service guide). The same wording appears on the combi and HydroVection error codes sheet. ## Before you book, in this order. Each step comes from Blodgett's own guidance for Cavity Probe Error on its commercial appliances. Follow it to the end: the last card says whether this is a visit. 01 Turn the oven off at the control and wait for it to cool before swinging the door fully open. 02 Hold or move product that was mid-cook and check it with a thermometer before serving. 03 Power the oven up once more; a message that stays points to the probe or its wiring, which a technician tests against a resistance chart, so arrange a service call. ### 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 Cavity Probe Error is a sensing problem, not a heating one; the burners or elements may be fine. A real overheat reports as Cavity High Temp Error instead. ## What you may notice with it. The commercial appliance problems Cavity 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 - [**Commercial Convection Oven Baking Unevenly Across the Racks**](https://commercialappliancerepair.center/problems/commercial-oven-uneven-bake/) Problem ### Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display 8 causes, cheapest first Where Cavity 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 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/) [Quench Probe Error](https://commercialappliancerepair.center/error-codes/blodgett-quench-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 > The cavity probe reads less than 32F or greater than 575F. [Blodgett MenuSelect BC20 control service guide](https://www.blodgett.com/custom/PDF/service/Menuselect-service-guide.pdf) [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. Blodgett BC-20 combi ovens with the MenuSelect control (MenuSelect BC20 service guide). The same wording appears on the combi and HydroVection error codes sheet. ## Blodgett Cavity 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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Turn the oven off at the control and wait for it to cool before swinging the door fully open. If it comes back, it needs a visit. ### Can a Blodgett combi still cook with Cavity Probe Error? No. Without a believable cavity reading the control cannot hold temperature, so leave it switched off until the probe has been tested. ### Which readings does the Blodgett cavity probe treat as impossible? Anything below 32°F or above 575°F is flagged as an error, per Blodgett's service sheet. ### How does a technician test a Blodgett cavity probe? Blodgett offers a plug kit that substitutes known resistors at the relay board. If the board reads correctly with the kit, the probe itself is the culprit. --- **[Read on the site: Blodgett Cavity Probe Error: the combi cannot read its oven temperature](https://commercialappliancerepair.center/error-codes/blodgett-cavity-probe-error/)** **[Book a visit with CommercialApplianceRepair.center](https://commercialappliancerepair.center/schedule/)**