--- title: "Pitco Prob HI: the probe or its wiring has shorted" description: "What Prob HI means on Pitco Prob HI: the probe or its wiring has shorteds, what to check before booking, and when it is not a failure at all." url: "https://commercialappliancerepair.center/error-codes/pitco-prob-hi/" --- # Pitco Prob HI: the probe or its wiring has shorted A shorted probe gives a reading the Digital Solid State Control cannot believe, so the screen trades the temperature for Prob and HI. ## What Prob HI actually means. A shorted probe gives a reading the Digital Solid State Control cannot believe, so the screen trades the temperature for Prob and HI. That pairing does not tell you the oil is hot; it tells you the measurement is broken. Pitco's steps are to test the probe and check the wires and connectors to the control for a short. Pitco commercial appliance display What to do when Prob HI 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 Pitco A Pitco visit begins only once the vat is cool enough to drain, since nobody on the crew should be reaching near hot oil. ### Source Pitco Solstice and Solstice Supreme SG/SSH series gas fryer service manual (L22-345 R1) Pitco Digital Solid State Control on Solstice and Solstice Supreme gas fryers (L22-345). The computer control shows the same short as SYSTEM FAILURE. ## Before you book, in this order. Each step comes from Pitco's own guidance for Prob HI on its commercial appliances. Follow it to the end: the last card says whether this is a visit. 01 Turn the fryer off and check the oil with a thermometer only to confirm it is cooling, not to keep frying. 02 Move production to another tank or fryer. 03 Book a visit so the shorted probe or wire can be found and replaced. ### 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 Prob HI reads like a high temperature alarm but is a probe short, so do not assume the oil has overheated. If oil really does overheat, the separate high limit switch trips and the fryer stops heating. ## What you may notice with it. The commercial appliance problems Prob HI 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 Fryer Not Heating or Slow to Recover Between Baskets**](https://commercialappliancerepair.center/problems/commercial-fryer-not-heating/) Problem ### Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display 8 causes, cheapest first Where Prob HI 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/) ## Pitco commercial appliances. A Pitco visit begins only once the vat is cool enough to drain, since nobody on the crew should be reaching near hot oil. [Pitco commercial appliance repair](https://commercialappliancerepair.center/brands/pitco/) More Pitco codes [HEAT FAIL](https://commercialappliancerepair.center/error-codes/pitco-heat-fail/) [IGNITION FAILURE](https://commercialappliancerepair.center/error-codes/pitco-ignition-failure/) [PROBE OPEN](https://commercialappliancerepair.center/error-codes/pitco-probe-open/) [SYSTEM FAILURE](https://commercialappliancerepair.center/error-codes/pitco-system-failure/) [Prob](https://commercialappliancerepair.center/error-codes/pitco-prob/) [DRAINING TURN OFF](https://commercialappliancerepair.center/error-codes/pitco-draining-turn-off/) [POSSIBLE FILTER ISSUE – CHECK AND RESOLVE](https://commercialappliancerepair.center/error-codes/pitco-possible-filter-issue/) [Is vat full?](https://commercialappliancerepair.center/error-codes/pitco-is-vat-full/) [FILTER?](https://commercialappliancerepair.center/error-codes/pitco-filter/) 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) Pitco 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 Pitco's own words > If display reads “Prob” “HI”, [Pitco Solstice and Solstice Supreme SG/SSH series gas fryer service manual (L22-345 R1)](https://www.pitco.com/wp-content/uploads/2022/03/L22-345.pdf) [Pitco Solstice and Solstice Supreme SG/SSH series gas fryer service manual (L22-345 R1)](https://www.pitco.com/wp-content/uploads/2022/03/L22-345.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Pitco Digital Solid State Control on Solstice and Solstice Supreme gas fryers (L22-345). The computer control shows the same short as SYSTEM FAILURE. ## Pitco Prob HI 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 fryer off and check the oil with a thermometer only to confirm it is cooling, not to keep frying. If it comes back, it needs a visit. ### Does Prob HI mean my Pitco oil is too hot? No. It means the probe signal is shorted. The high limit switch is what protects against real overheating. ### Can moisture cause Prob HI on a Pitco? Water in a connector after cleaning can short the circuit. A technician checks and dries or replaces the connection. ### Should I keep using a Pitco that shows Prob HI now and then? No. A probe that shorts intermittently can give a false reading at any time, so book a visit. --- **[Read on the site: Pitco Prob HI: the probe or its wiring has shorted](https://commercialappliancerepair.center/error-codes/pitco-prob-hi/)** **[Book a visit with CommercialApplianceRepair.center](https://commercialappliancerepair.center/schedule/)**