Bosch HGI8054UC Error Code E115

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• Source: Official Bosch service manual
• Reviewed by: Geo Technical Editorial
• Published: March 1, 2026
• Updated: March 15, 2026
• DIY scope: Basic user checks are possible.

Error E115 on Bosch : Oven overtemperature — oven cavity temperature exceeded safe operating threshold. Follow the troubleshooting steps below to diagnose and fix this range issue. ## What Error Code E115 Means on a Bosch HGI8054UC Oven overtemperature — oven cavity temperature exceeded safe operating threshold ## What This Error Means Error code E115 on your Bosch 800 Series Slide-In Range means the oven cavity temperature has exceeded its safe operating limit. The control board monitors oven temperature continuously; when the temperature sensor reports a value above the programmed maximum (typically around 615°F / 325°C for normal bake modes, higher for self-clean), E115 is triggered and all heating stops immediately. The most common causes are a stuck relay on the control board (keeps a heating element or igniter energized even after the control requests it to turn off), a faulty temperature sensor reporting falsely high values, blocked oven vents restricting heat escape, or a deteriorated door gasket allowing excessive heat retention. E115 is a safety protection code. Allow the oven to cool completely before investigating. Repeated E115 events indicate a control board relay failure that requires board replacement. ## Quick Diagnostic Summary | Detail | Value | |--------|-------| | Error Code | E115 | | Severity | High | | Appliance | Bosch HGI8054UC 800 Series Gas Slide-In Range | | User-Fixable | Yes | | Applicable Models | HEI8054U, HGI8054UC, HDI8054U | ## Step-by-Step Troubleshooting | Step | Action | What To Do | Expected Result | |------|--------|------------|-----------------| | 1 | Power off and allow full cool-down | Turn off the range at the circuit breaker. Do not open the oven door immediately — allow the oven to cool for at least 30–45 minutes. This lets the thermal cutout reset and allows the control board to log the fault data. | Range is fully de-energized. Oven temperature has returned to room temperature. | | 2 | Inspect oven door gasket and vents | Open the oven door and examine the rubber/silicone gasket around the oven opening. Press a sheet of paper against the gasket and close the door — the paper should grip firmly all the way around (paper-slip test). Also inspect the oven bottom vent slots for baked-on debris or foil blocking airflow. | Gasket holds paper firmly at all points. Vent slots are clear and unobstructed. | | 3 | Test the temperature sensor resistance | Locate the oven temperature sensor on the upper-rear oven wall. Disconnect its harness connector and measure resistance with a multimeter. Should read ~1,080 ohms at room temperature. A reading significantly higher than 1,200 ohms can cause the board to underestimate actual temperature, potentially allowing the oven to overheat before tripping the safety limit. | Sensor reads 970–1,190 ohms (within spec). A sensor outside this range should be replaced. | | 4 | Check for stuck heating relay (control board) | Restore power. Set oven to Bake at 350°F. After the oven preheats and reaches temperature, listen for the heating element or burner cycling off. If the heating element/burner stays on continuously without cycling, the relay is stuck closed — the control board must be replaced. | Heating element or burner cycles on and off to maintain temperature. If it never turns off, relay is stuck. | | 5 | Replace control board if relay is confirmed stuck | Order the replacement control board for your specific model. Disconnect power at the breaker. Access the control board through the rear panel (electric/dual-fuel) or the control panel front (varies by model). Label and photograph all wire harness connections before disconnecting. Install the new board, reconnect all harnesses, restore power, and test. | New control board installed. Oven preheats and holds temperature without triggering E115. | ## Frequently Asked Questions ### Is E115 dangerous? E115 indicates the oven reached an unsafe temperature. The control board’s automatic shutoff prevents fire risk in most cases. Do not use the oven until the root cause is identified and resolved. If you smell burning odors or see smoke, disconnect power at the breaker immediately. ### Can a dirty oven cause E115? Heavily soiled ovens with thick grease deposits on the oven walls or vent slots can restrict airflow and cause heat buildup, raising the risk of overtemperature events. Regular cleaning (including removing foil from the oven bottom) reduces this risk. ### E115 appears only during self-clean — normal? Self-clean cycles run the oven at 850–950°F to incinerate food residue. If E115 appears only during self-clean and not during normal baking, the issue may be a faulty door gasket failing to contain heat properly, or a cooling fan not running at full speed. Check the gasket and cooling fan before running another self-clean cycle. ### How do I reset E115 after the oven has cooled? E115 should clear automatically once the oven cools and the fault condition is resolved. If it does not clear, restore power at the breaker after a full cool-down. If E115 reappears the next time you use the oven without any obvious overtemperature event, the temperature sensor may be sending incorrect readings. --- Last Updated: March 2026 · Bosch 800 Series Gas Slide-In Range · Error Code E115 ### Is it safe to keep using my Bosch with error E115? If error E115 does not indicate an immediate safety hazard such as a gas leak, electrical short, or water flooding, you can continue limited use while monitoring the appliance. However, running the range with an active error code increases the risk of further damage. Address the underlying issue as soon as possible. For high-severity errors, disconnect the appliance and contact a qualified technician. ### How much does it cost to fix error E115 on a Bosch ? Repair costs for error E115 on the Bosch range depend on the root cause. DIY fixes such as cleaning filters, resetting the unit, or reconnecting loose wires cost nothing beyond basic tools. If a component replacement is needed, parts and labor from a certified technician are the main expenses. Contact a Bosch-authorized service provider for an accurate estimate based on your specific situation. ### What does error code E115 mean on a Bosch range? Error code E115 on Bosch range models indicates Oven overtemperature — oven cavity temperature exceeded safe operating threshold. This error is detected by the appliance’s internal diagnostic system and displayed to alert the user that attention is needed. Refer to the troubleshooting steps above for guidance on resolving this issue. ### Is it safe to keep using my Bosch with error E115? If error E115 does not indicate an immediate safety hazard such as a gas leak, electrical short, or water flooding, you can continue limited use while monitoring the appliance. However, running the range with an active error code increases the risk of further damage. Address the underlying issue as soon as possible. For high-severity errors, disconnect the appliance and contact a qualified technician. ### How much does it cost to fix error E115 on a Bosch ? Repair costs for error E115 on the Bosch range depend on the root cause. DIY fixes such as cleaning filters, resetting the unit, or reconnecting loose wires cost nothing beyond basic tools. If a component replacement is needed, parts and labor from a certified technician are the main expenses. Contact a Bosch-authorized service provider for an accurate estimate based on your specific situation. ### What does error code E115 mean on a Bosch range? Error code E115 on Bosch range models indicates Oven overtemperature — oven cavity temperature exceeded safe operating threshold. This error is detected by the appliance’s internal diagnostic system and displayed to alert the user that attention is needed. Refer to the troubleshooting steps above for guidance on resolving this issue.