Electrolux Washer Error E70 — What It Means & How to Fix It

What Does This Error Mean?

E70 on an Electrolux washer means the NTC temperature sensor is not reading correctly. The NTC sensor tells the machine what temperature the water has reached during a wash cycle. When it fails, the machine cannot control wash temperature and stops the cycle.

Affected Models

Electrolux EFLS627UTT
Electrolux EFLS527UTT
Electrolux ELFW7637AT
Electrolux ELFW7537AT
Electrolux EFL-Series Front Load

Common Causes

The NTC temperature sensor has failed electrically and needs to be replaced
Mineral scale buildup is coating the sensor and causing inaccurate temperature readings
A loose or corroded wire connection between the sensor and the control board
The sensor has physically cracked or its probe has separated from the housing
The main control board is misreading sensor input due to a board fault

How to Fix It

Unplug the washer for 3 minutes and plug it back in. Try a new wash cycle on a cold setting.

A brief power reset clears temporary sensor glitches. If E70 only appeared once, a reset may be all you need.
Run a drum cleaning cycle with a citric acid descaler or white vinegar. Mineral scale on the sensor probe can cause false readings.

In hard water areas, scale buildup on the NTC probe is a very common cause of E70. A thorough cleaning cycle often resolves it without replacing any parts.
If E70 persists, unplug the machine and access the NTC sensor. It is a small probe — usually clipped onto the heating element inside the drum housing or in the sump area.

Consult your model's service manual for the exact location. On most Electrolux front-loaders, the NTC probe is attached directly to the heating element.
Check the wire connector on the NTC sensor. Unplug it and firmly reconnect it. Look for any corrosion on the pins.

A corroded connector can cause the control board to read an out-of-range value, triggering E70 even though the sensor itself is fine.
Test the NTC sensor with a multimeter. At room temperature (around 20°C), the resistance should be approximately 10,000 ohms (10 kΩ). As temperature rises, resistance decreases.

If the resistance reads zero, infinite, or does not change with temperature, the sensor has failed and needs replacing.
Order a replacement NTC sensor matched to your Electrolux model number (on the sticker inside the door frame). It is a straightforward swap — disconnect the old sensor and clip in the new one.

NTC sensors are among the cheapest washer parts. Even if you are not sure it is faulty, replacing it is a low-cost first step.

When to Call a Professional

If cleaning and resetting do not fix E70, the NTC sensor needs to be tested and likely replaced. The NTC sensor is a small, inexpensive part — typically $15 to $40. A technician can confirm the fault and replace it for $80 to $150 in total.

Frequently Asked Questions

What is an NTC sensor and what does it do in a washing machine?

NTC stands for Negative Temperature Coefficient — it is a type of resistor whose resistance changes with temperature. The washer reads this resistance to know the exact water temperature. This is how the machine controls whether your 40°C cycle is actually reaching 40°C.

Can E70 cause my clothes to be damaged by water that is too hot?

If the NTC sensor fails completely, the control board uses a safety default to prevent overheating. The machine is more likely to stop the cycle (E70) than to let water overheat uncontrolled. Your clothes are safe — but the cycle will not complete.

My Electrolux washer shows E70 only on high-temperature cycles. Why?

At higher temperatures, the NTC sensor resistance changes more dramatically. A sensor that is borderline faulty may read correctly at low temperatures but give out-of-range readings at 60°C or 90°C. Replacing the sensor will fix this.