--- title: "True HIGH TEMP alert: the freezer has warmed past its alarm limit" description: "What HIGH TEMP means on True HIGH TEMP alert: the freezer has warmed past its alarm limits, what to check before booking, and when it is not a failure at all." url: "https://freezerrepair.center/error-codes/true-high-temp/" --- # True HIGH TEMP alert: the freezer has warmed past its alarm limit True lists HIGH TEMP among the notification alerts on its column display. ## What HIGH TEMP actually means. True lists HIGH TEMP among the notification alerts on its column display. On the undercounter freezers and freezer drawers, True spells out the limit: the alarm activates after one hour in a row at or above 20°F, once the alarms have been switched on. True Residential freezer display · also shown as High temperature alarm What to do when HIGH TEMP shows on the freezer ### Kind of code Temperature and alarms The freezer measured a cabinet warmer than it should be and said so, sometimes with the highest temperature it reached while nobody was looking. The cause can be as simple as a door left ajar or a long power outage, or as serious as a compressor that stopped. Keep the door or the lid shut and check whether the food is still hard before anything else; the alarm is a warning about the food, not a diagnosis. ### Usually leads to Freezer thermostat and temperature control repair Repairing the dial thermostat or the sensor and control that decide when a freezer cools, so it stops running without end or quitting too early. ### Shows up as Freezer Error Code A freezer error code appears on the display: letters and digits, a flashing temperature, or a warning symbol, sometimes with an alarm and sometimes with the freezer still running. ### Make True Residential True freezers repaired in homes, home bars and outdoor kitchens. ### Source True Residential column installation and operation manual, TR-24/30/36 (TEC_TM_009 Rev N) True freezer columns (TR-24FRZ, TR-30FRZ, TR-36FRZ, with or without ice maker) with the menu display, and True 24-inch undercounter freezers and freezer drawers (TUF-24, TUF-24D). On the undercounter models the door ajar and high temperature alarms are turned on together from the keypad. ## Before you book, in this order. Each step comes from True Residential's own guidance for HIGH TEMP on its freezers. Follow it to the end: the last card says whether this is a visit. 01 Check the food by hand and move anything soft to another freezer or a cooler with ice. 02 Close the door or drawer firmly and make sure the gasket seals; a door ajar alarm often comes first. 03 If HIGH TEMP returns with the door shut and no warm food loaded, book a visit. ### Still there? It usually turns into [freezer thermostat and temperature control repair](https://freezerrepair.center/services/thermostat-and-temperature-control-repair/). Book with the code and the model number. ### What not to do HIGH TEMP is not a sensor or control code; True shows COMMUNICATION ERROR and SERVICE REQUIRED as separate alerts. It also does not mean the food is lost, since 20°F is still below freezing. ## What you may notice with it. The freezer problems HIGH TEMP tends to arrive with. Answer these at the freezer before anyone is booked. [All problems](https://freezerrepair.center/problems/) Before you call ### [Freezer Error Code](https://freezerrepair.center/problems/freezer-error-code/) [All 7 causes, cheapest first](https://freezerrepair.center/problems/freezer-error-code/) It also comes with - [**Freezer Alarm Beeping**](https://freezerrepair.center/problems/freezer-alarm-beeping/) - [**Standalone Freezer Not Freezing**](https://freezerrepair.center/problems/freezer-not-freezing/) - [**Freezer Warming Up With Food Inside**](https://freezerrepair.center/problems/freezer-thawing-food-at-risk/) - [**Freezer in the Garage Stopped Working**](https://freezerrepair.center/problems/freezer-in-garage-not-working/) Problem ### Freezer Error Code 7 causes, cheapest first Where HIGH TEMP usually leads ## Freezer thermostat and temperature control repair. **Thermostat, temperature sensor or garage kit · low to moderate.** Book a visit [What the job involves](https://freezerrepair.center/services/thermostat-and-temperature-control-repair/) ## True Residential freezers. True freezers repaired in homes, home bars and outdoor kitchens. [True Residential freezer repair](https://freezerrepair.center/brands/true/) More True Residential codes [DOOR ALARM](https://freezerrepair.center/error-codes/true-door-alarm/) [SHOWROOM MODE](https://freezerrepair.center/error-codes/true-showroom-mode/) Temperature and alarms on other makes [Bertazzoni Power Failure!!](https://freezerrepair.center/error-codes/bertazzoni-power-failure/) [Bosch Temperature alarm message](https://freezerrepair.center/error-codes/bosch-temperature-alarm/) [Dacor Abnormally high temperature](https://freezerrepair.center/error-codes/dacor-abnormally-high-temperature/) [Electrolux HIGH TEMP](https://freezerrepair.center/error-codes/electrolux-high-temp/) [Frigidaire HI](https://freezerrepair.center/error-codes/frigidaire-hi/) [Fulgor Milano Power Failure!!](https://freezerrepair.center/error-codes/fulgor-milano-power-failure/) [Gaggenau Alarm](https://freezerrepair.center/error-codes/gaggenau-alarm/) [GE High Temp](https://freezerrepair.center/error-codes/ge-high-temp/) [All 31 codes of this kind](https://freezerrepair.center/error-codes/#family-temperature) True Residential builds this ### Freezer column A built-in, full-height freezer that stands alone in the cabinetry, often beside a matching fresh-food column, with a stainless or panel-ready door and an electronic control. True Residential builds this ### Undercounter freezer A 15- to 24-inch freezer or a pair of freezer drawers built in under a counter, in a kitchen island, a home bar, a basement or a pool house, venting from the front. ## In True Residential's own words > The following notification alerts may show on the display if the appliance needs attention. [True Residential column installation and operation manual, TR-24/30/36 (TEC_TM_009 Rev N)](https://true-caliber.com/wp-content/uploads/2020/01/212530_30-TR-24_30_36-Install-Manual_REV-N_EN35.pdf) [True Residential column installation and operation manual, TR-24/30/36 (TEC_TM_009 Rev N)](https://true-caliber.com/wp-content/uploads/2020/01/212530_30-TR-24_30_36-Install-Manual_REV-N_EN35.pdf) [True Residential 15 and 24-inch undercounter installation and operation manual (TEC_TM_156 Rev I)](https://true-caliber.com/wp-content/uploads/2022/06/838155-TRL_15_24-Install_REV_I_EN.pdf) [True Residential 15 and 24-inch undercounter installation and operation manual (TEC_TM_156 Rev I)](https://true-caliber.com/wp-content/uploads/2022/06/838155-TRL_15_24-Install_REV_I_EN.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. True freezer columns (TR-24FRZ, TR-30FRZ, TR-36FRZ, with or without ice maker) with the menu display, and True 24-inch undercounter freezers and freezer drawers (TUF-24, TUF-24D). On the undercounter models the door ajar and high temperature alarms are turned on together from the keypad. ## True Residential HIGH TEMP freezer 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 the food by hand and move anything soft to another freezer or a cooler with ice. If it comes back, it needs a visit. ### At what temperature does a True undercounter freezer alarm? At 20°F, after the cabinet has stayed at or above it for one hour in a row. The alarm has to be switched on from the keypad first. ### Can a True outdoor undercounter freezer show HIGH TEMP in summer heat? Yes. True rates its undercounter freezers for outdoor use, but direct sun and a blocked front grille make the freezer work harder. Check both before booking a repair. ### Why didn’t my True freezer warn me it was warm? On the undercounter models the door ajar and high temperature alarms are off until you turn them on. Check the keypad setting so you get the warning next time. --- **[Read on the site: True HIGH TEMP alert: the freezer has warmed past its alarm limit](https://freezerrepair.center/error-codes/true-high-temp/)** **[Book a visit with FreezerRepair.center](https://freezerrepair.center/schedule/)**