Cooker
E07
The E07 error code on a Rangemaster cooker indicates a fault with the oven’s temperature sensor (also called a thermocouple or NTC probe), meaning the appliance can no longer accurately read the internal oven temperature. While it sounds alarming, it’s one of the more straightforward faults a Rangemaster can develop — but it does mean your oven is unsafe to use until it’s resolved. In this guide, you’ll learn exactly what’s causing it, which fixes you can safely try yourself, and when it’s time to call in a professional.
What does this error mean?
The E07 fault code on Rangemaster cookers — including popular models in the Classic, Professional Plus, and Nexus ranges — signals that the oven control board has lost a valid reading from the oven temperature sensor (typically an NTC thermistor probe). In plain English: the brain of your oven is trying to monitor the internal temperature to keep cooking safe and accurate, but the sensor is either sending back a nonsensical reading or no reading at all. This could mean the sensor has failed outright, the wiring connecting it to the control board has become damaged or disconnected, or — less commonly — the control board itself has developed a fault. Because the oven relies on this sensor to regulate heat, it shuts itself down and displays E07 as a safety precaution. Do not attempt to override or ignore this fault and carry on cooking — without temperature regulation, your oven could dangerously overheat.
Est. repair cost
£15–£35 for a DIY sensor replacement; £80–£150 for a professional repair (sensor or wiring); £140–£300 if the main PCB requires replacement by an engineer
🔍 Likely causes
🛠️ Step-by-step fix
Step 1 — Power off and reset the cooker: Switch the cooker off at the wall socket or isolate it at the fuse spur. Leave it completely unpowered for at least 5 minutes, then switch it back on. This performs a hard reset of the control board and will clear E07 if the fault was caused by a transient power surge or a one-off electronic glitch. If E07 reappears immediately or returns after first use, the fault is a real hardware issue — move on to the next steps.
Step 2 — Check your circuit breaker and power supply: Go to your consumer unit (fuse box) and check that the circuit breaker for your cooker hasn’t partially tripped. A partially tripped breaker can cause voltage irregularities that trigger sensor errors. Reset it fully if needed, then test the cooker again.
Step 3 — Inspect the oven cavity for visible damage around the sensor probe: Open the oven door and look at the back wall of the oven cavity. You should be able to see the temperature sensor — it’s a thin metal rod, usually 3–5 cm long, protruding from the back wall, often held in place by one or two small screws. Look for obvious signs of damage: discolouration, scorching, a cracked or bent probe tip, or heavy carbon build-up directly around it. Do NOT attempt to remove or touch the sensor while the oven is warm.
Step 4 — Clean around the sensor probe: If you can see carbon deposits or baked-on grease around the base and tip of the sensor, this can interfere with accurate readings. Once the oven is completely cold, use a soft cloth dampened with warm soapy water or a proprietary oven cleaner to carefully clean around — not aggressively scrubbing — the sensor. Avoid getting moisture into the sensor mounting hole. Dry thoroughly before powering back on.
Step 5 — Check the sensor’s resistance with a multimeter (confident DIYers only): If you own a digital multimeter, you can test the sensor without replacing it. With the cooker fully isolated from the mains, unscrew the sensor probe from the back wall (typically one or two Torx or Phillips screws — a T20 screwdriver is commonly needed on Rangemaster models). Disconnect the two-wire connector behind the back panel. Set your multimeter to resistance (Ohms). At room temperature (around 20°C), a healthy Rangemaster NTC sensor should read approximately 990–1,010 Ohms. A reading of zero (short circuit), infinity (open circuit), or wildly outside that range confirms the sensor has failed and needs replacing.
Step 6 — Replace the NTC temperature sensor (DIY-appropriate repair): Replacement Rangemaster oven temperature sensors are widely available from UK suppliers including 4YourHome, eSpares, and Rangemaster’s own parts line. Confirm your exact model number (found on the rating plate — usually inside the door frame or on the back of the appliance) before ordering. Genuine Rangemaster sensors typically cost £15–£35. Fitting is straightforward: isolate the power, unscrew the old sensor, disconnect the wiring connector, connect the new sensor, screw it back into position, and restore power. The E07 code should clear on first power-up if the sensor was the fault.
Step 7 — Inspect the sensor wiring for damage: If the new sensor doesn’t resolve E07, or if you noticed scorched wiring in Step 3, the wiring harness between the sensor and the control board may be the issue. You can visually inspect the wiring at the sensor end. However, tracing the wiring further into the appliance’s back panel or terminal block involves accessing live electrical components — at this point, stop and call a qualified appliance engineer.
Step 8 — Do not attempt to repair or replace the main PCB yourself: If steps 1–7 haven’t resolved the fault, the issue is most likely the main control board. PCB replacement on Rangemaster cookers is a job for a professional — incorrectly fitted boards can create fire or electrocution risks, and Rangemaster PCBs can cost £80–£200 in parts alone, making it worth having a qualified engineer confirm the diagnosis before you spend the money.
📞 When to call a professional
You should stop DIY attempts and call a qualified appliance engineer if: the E07 code returns after you’ve fitted a new sensor; you found or suspect damaged wiring inside the appliance; the oven has recently overheated or you can smell burning from inside the casing; or the fault appeared after a visible electrical incident such as a blown fuse or burning smell. When you call, tell the engineer: (1) the exact error code — E07; (2) your Rangemaster model and approximate age; (3) what you’ve already tried (reset, sensor inspection, sensor replacement if applicable). This will save time and potentially reduce your call-out charge. Look for engineers who are NICEIC or Gas Safe registered (if your Rangemaster is a dual-fuel model with a gas hob) and who have experience with range cookers specifically. Rangemaster also operates an official service line — 0800 804 6261 — and can arrange manufacturer-trained engineers. If your cooker is still under its 24-month manufacturer warranty or an extended warranty, contact Rangemaster directly before paying for independent repairs.
⚖️ Repair or replace?
For a Rangemaster cooker showing E07, the repair-versus-replace decision depends largely on the appliance’s age and which component has failed. If the fault is simply a failed NTC sensor — the most common scenario — a DIY repair costs as little as £15–£35 in parts and 30 minutes of your time, making repair the obvious choice regardless of age. If you need a professional call-out, expect to pay £60–£100 for the visit plus parts, bringing the total to around £80–£150. That’s still excellent value given that entry-level Rangemaster 90cm range cookers start at around £1,200 new. If the main PCB is at fault, the calculation changes. PCB parts can cost £80–£200, plus £60–£100 labour, taking the total repair cost to £140–£300. At that level, if your cooker is over 10 years old, it’s worth weighing repair against replacement — particularly since Rangemaster parts availability for models over 12 years old can become limited. Rangemaster is a premium UK brand with good parts support for current and recent models (up to around 10 years old), so repair is generally viable and recommended for appliances under a decade old. For cookers 10–15+ years old with a PCB fault, replacement deserves serious consideration — especially if the cooker has had previous repairs.