E1
Electrolux Split AC
Severity: ModerateWhat Does This Error Mean?
The indoor room temperature sensor has detected a fault. Your AC cannot accurately read the room temperature. Cooling or heating may stop until the sensor is repaired.
Affected Models
- Electrolux EXH09HL1W
- Electrolux EXH12HL1W
- Electrolux ESV09CRK
- Electrolux EWHI09
- Electrolux Inverter Split System
Common Causes
- Faulty or failed room temperature thermistor inside the indoor unit
- Loose or disconnected sensor wire on the indoor PCB
- Corrosion on the sensor connector pins
- Sensor damaged by moisture or insects inside the unit
- Failed indoor control board causing incorrect sensor readings
How to Fix It
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Turn the AC off at the remote and wait 2 minutes.
A brief power-off clears temporary sensor glitches without losing settings.
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Switch the AC off at the wall breaker for 5 minutes, then turn it back on.
A full power reset can clear a false E1 reading caused by a voltage spike.
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Check that the indoor unit air filter is clean and seated correctly.
A blocked filter raises internal temperatures, which can cause sensor misreadings.
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Inspect the front panel area of the indoor unit for any visible wiring issues.
Loose sensor wires are a common cause — a technician can reseat them quickly.
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If the error persists after reset, contact Electrolux service for a sensor replacement.
The thermistor itself is inexpensive; most of the repair cost is labour.
When to Call a Professional
Call a licensed technician if the error returns after a full power cycle. Replacing the thermistor requires opening the indoor unit and working with the PCB. Do not attempt PCB repairs yourself — incorrect handling can cause further damage.
Frequently Asked Questions
Can I still use my Electrolux AC while it shows E1?
Generally no — most units shut down cooling or heating when E1 is active. The AC cannot regulate temperature without a working room sensor. Fix the sensor before running the unit for extended periods.
How much does it cost to fix an E1 error on an Electrolux AC?
A thermistor replacement usually costs $50–$150 including labour. If the indoor PCB needs replacing, costs rise to $150–$350. Always get a quote before authorising any PCB replacement.
Will turning off and on fix the E1 error?
Sometimes a full power reset clears a temporary E1 caused by a spike or glitch. If E1 returns immediately after restart, the sensor itself has failed. A persistent E1 always needs a physical sensor inspection.