Did E310 appear after an outage, storm, or breaker trip?
Do one full five-minute breaker reset. If the code stays gone, run a short oven check and keep notes.
Range power fault help
Bosch Range E310 Error Code? Check Power First
Direct answer: On Bosch freestanding ranges, E310 is listed as a power supply failure. Start with a real five-minute breaker reset, then watch whether the code returns before any oven use. Do not buy a keypad or control board from the code alone.
Most likely: A one-time power dip may clear. An immediate return points toward supply voltage, wiring, terminal connection, or service diagnosis.
Sort it by reset result, breaker behavior, recent outage, and whether the range shows any heat or wiring warning signs.
Don’t start with: Do not measure live range wiring unless you are qualified. If the breaker trips, the display flickers, or anything smells hot, leave the range off.
Breaker trips or you smell heatLeave power off and treat this as an electrical or appliance-service call.
Code clears after a full resetRun a short oven check and watch for a repeat fault before buying parts.
Do this first
- If the breaker trips again, leave the range off.
- If you smell burning plastic, see smoke, or find a scorched cord area, leave power off and call a pro.
- Do not measure live 240-volt wiring unless you are qualified.
- Do not remove the terminal cover or control panel with power on.
- If the range is gas or dual-fuel, stop moving it as soon as the connector starts to tighten. Do not loosen gas fittings or strain the connector.
- Use one full five-minute breaker reset, then stop repeating resets if E310 returns.
Last reviewed: 2026-06-15
60-second power sort
Does E310 return before you touch any controls?
Treat the fault as active. The next useful check is supply voltage, cord, terminal, or internal power path, not keypad shopping.
Does the breaker trip again or the display flicker?
Leave the range off and call a licensed electrician or appliance tech. Repeated breaker resets are not a repair.
Is the unit a slide-in range with E plus a number?
Use the exact Bosch model page or owner manual. Some Bosch range families group E-number faults as electronics faults after reset.
Did a pro confirm correct voltage and good connections?
Now the range control or power board can move up. Match parts by full model number and diagnosis, not by code alone.
Start at the power clue, not the parts list
For E310, the useful first split is whether a full reset clears the code or the range still sees a power fault.
Before you buy anything
Copy the full Bosch model number and E-Nr first. On Bosch freestanding ranges, E310 points to power supply. If it returns right after a five-minute reset, watch for breaker trips, display flicker, hot smell, or visible cord damage. Check those clues and have correct voltage, the terminal block, and wiring checked before you buy a keypad, display board, or main control.
What E310 usually means
Bosch's freestanding range support lists e310 as a power supply failure. That changes the order of diagnosis: power first, appliance electronics later.
- Start with the reset Bosch calls for: breaker off, wait five minutes, breaker back on.
- A code that clears after a known outage may have been a latched power event.
- A code that returns immediately points toward supply voltage, cord connection, terminal block, wiring, or the appliance power path.
- A touch panel or keypad can still fail on a range, but E310 does not make that the first bet.
- For slide-in or induction models, check the exact Bosch support page because some E-number faults are grouped differently.
What not to do with E310
This is where homeowners lose money or make the job unsafe. Keep the first checks visible and reversible.
- Do not reset a breaker repeatedly when it trips again.
- Do not probe the receptacle, terminal block, or range wiring live unless you are qualified.
- Do not assume E310 means the keypad is bad because the code appears on the display.
- Do not order a control board until the supply side has been checked.
- If the range is gas or dual-fuel, stop moving it as soon as the connector starts to tighten. Do not loosen gas fittings or kink the connector.
- Do not ignore a hot smell, scorched cord, melted terminal cover, or flickering display.
Work through the safe power checks
The goal is to collect facts without opening live electrical areas. Those facts make the service call shorter and prevent blind parts orders.
- Turn the breaker fully off, not just halfway, and wait five full minutes.
- Restore power and watch the display before pressing Bake, Broil, Timer, or any touch key.
- Write down whether the code returns immediately, during preheat, or only after other kitchen loads run.
- Look for recent outage, storm, utility work, panel work, range installation, or a tripped breaker.
- Check the model tag and range type so the right Bosch error-code page is used.
- Photograph the display and model label before calling Bosch, an appliance tech, or an electrician.
What the reset result means
Use the reset outcome before moving deeper. It is the cleanest homeowner split on this code.
| What you see | What it usually means | Next move |
|---|---|---|
| E310 clears and stays gone | A temporary power disturbance or latched control event is possible. | Run a short oven check and watch for a repeat fault. |
| E310 returns before any key press | The range still sees a power-supply or control-path fault. | Stop parts shopping and arrange voltage or appliance diagnosis. |
| Breaker trips again | The circuit, cord, terminal, or internal wiring may be unsafe. | Leave power off and call a licensed electrician or appliance tech. |
| Display flickers or smells hot | A loose, overheated, or failing connection is possible. | Stop using the range until the power path is inspected. |
| Model page gives a different meaning | Bosch model families do not all route codes the same way. | Follow the exact model manual or Bosch support guidance. |
Tools You May Need
Use these for visible checks and documentation. They are not a green light for live electrical work.
Inspection flashlight
Helps when: You need to read the model label, breaker markings, cord area, or visible heat marks without opening energized parts.
Skip it when: Access requires removing a terminal cover, reaching behind a live range, or pulling a gas range hard against its connector. If the gas connector would be strained, stop there and call a licensed pro or Bosch service.
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Phone camera
Helps when: A photo of the E310 display, model tag, breaker label, and any visible damage helps service start in the right lane.
Skip it when: You would need to reach into a live terminal area or disturb wiring to get the picture.
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Digital multimeter
Helps when: A qualified person is checking voltage or disconnected continuity after the safe reset points to a supply fault.
Skip it when: You are not trained for live 240-volt checks or cannot identify the exact test points from the model guidance. Do not use a meter on a live range to learn where to probe.
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Replacement Parts
Parts come after diagnosis here. E310 starts with supply power, so the safest parts advice is narrow and conditional.
Range power cord
Helps when: A qualified check finds a damaged cord or plug, and your Bosch model uses a replaceable cord with the same rating and conductor count.
Skip it when: The cord looks normal, the outlet or terminal has not been checked, or the code is the only clue.
Compare range power cords on Amazon
Terminal block or harness repair
Helps when: A tech finds a loose, scorched, cracked, or heat-damaged connection in the range power path.
Skip it when: No one has inspected the terminal or harness with power safely off, or the range is still tripping the breaker.
Compare range terminal parts on Amazon
Bosch range control board
Helps when: Correct voltage, breaker behavior, cord, terminal block, and wiring have already been cleared by diagnosis.
Skip it when: You are buying because E310 appears on the display but the supply side has not been proven good.
Compare Bosch range control boards on AmazonAs an Amazon Associate I earn from qualifying purchases. Repair Riot may earn a commission at no extra cost to you.
FAQ
What does E310 mean on a Bosch range?
Bosch lists e310 on freestanding ranges as a power supply failure. Start with the full five-minute breaker reset, then treat a returning code as a supply-voltage, cord, terminal, wiring, or appliance power-path issue until it is diagnosed.
Can I reset E310 and keep using the range?
One full reset is reasonable after an outage or breaker trip. If E310 returns, the range is still seeing a fault. Repeated resets around a tripping breaker, flickering display, or hot smell are not safe troubleshooting.
Is E310 usually a bad control board?
Not as a first call. On Bosch freestanding ranges, E310 points to power supply. If the code returns right after a five-minute reset, note breaker behavior, flicker, or hot smell and have correct voltage, cord, terminal block, and wiring checked before a control board moves up.
Should I replace the keypad for Bosch E310?
No, not from the E310 code alone. A keypad or touch panel can fail on a range, but this code is a power clue first. If the code appears before you press any keys, stay on reset timing, breaker behavior, and power checks. Buy keypad parts only if your exact model guidance or separate keypad symptoms point there.
Why does Bosch say to measure the house wiring?
Bosch's support path points toward confirming correct voltage. For most homeowners, that means calling a licensed electrician or qualified appliance tech, not opening a live terminal block with a meter.
What if my Bosch slide-in range shows E310?
Use the exact model number and E-Nr from the tag. Bosch slide-in support can group E plus number faults differently than freestanding ranges, so compare your model page before applying E310 advice. Do the reset that page calls for; if the code returns or support is listed, contact Bosch or service instead of guessing at parts.
Can a power outage cause E310?
Yes, a voltage dip or breaker event can leave a control fault latched. If the code clears after one full five-minute reset and does not return during a short oven check, keep notes and watch it.
When should I call an electrician instead of an appliance tech?
Call a licensed electrician when the breaker trips again, other circuits act strange, the receptacle or cord connection looks heat damaged, or the suspected problem is supply voltage or house wiring.
What should I write down before calling Bosch or service?
Before calling, write down the full model number or E-Nr and whether the range is gas, electric, dual-fuel, or induction. Note when E310 appears, whether a reset helped, and any breaker trip, outage, flicker, hot smell, or visible damage. If gas or dual-fuel moving would strain the connector, stop there and say that when you call.
How this guide was built
Repair Riot built this page from Bosch range error-code support, then kept the homeowner path limited to reset timing, visible clues, model lookup, and clear stop points before live electrical work.
- Bosch freestanding range error codes — lists e310 as a power supply failure and gives the five-minute breaker reset path
- Bosch slide-in range error codes — shows how Bosch groups some slide-in E-number faults and when support is advised
- Bosch service and repair support — model-number, authorized service, and large-appliance repair support