E2
Tadiran Split AC
Severity: ModerateWhat Does This Error Mean?
E2 on a Tadiran AC means the evaporator coil thermistor (the sensor inside the indoor unit that monitors the coil temperature) has a fault. This sensor prevents the coil from freezing over by monitoring its temperature during operation. When it fails, the AC shuts down to avoid ice damage.
Affected Models
- Tadiran Inverter Split AC
- Tadiran Breeze Series
- Tadiran T-MAX Series
- Tadiran Coral Series
- Tadiran Split AC (all inverter models)
Common Causes
- Evaporator coil thermistor has failed — open circuit or shorted
- Thermistor probe dislodged from the coil pipe
- Connector loose or corroded at the indoor unit PCB
- Water ingress from a blocked drain causing moisture damage to the sensor wiring
- Indoor PCB fault misreading the thermistor signal
How to Fix It
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Switch off the AC and circuit breaker, wait 5 minutes, then attempt one restart.
A transient E2 may clear after a power cycle. If E2 returns after the AC runs for a few minutes, the sensor has genuinely failed.
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Check whether the indoor unit is dripping water excessively.
A blocked drain can cause water pooling around the thermistor wiring, triggering E2. If you see water dripping inside the room, address the drain blockage first.
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If E2 persists, call an authorised Tadiran technician.
Continuing to use the AC without a working coil sensor risks ice forming on the evaporator, which can damage the coil fins and indoor fan.
When to Call a Professional
E2 requires a licensed technician. The evaporator coil thermistor is inside the indoor unit casing. A technician will test the sensor resistance and replace it if necessary.
Frequently Asked Questions
Can a blocked drain cause Tadiran E2?
Yes — if the condensate drain is blocked and water backs up inside the indoor unit, it can reach the thermistor wiring and cause moisture-related faults. Fixing the drain and drying the connector may resolve E2 without a part replacement.
Is E2 the same fault on all Tadiran models?
On most Tadiran inverter split AC models, E2 is the evaporator coil thermistor. Occasionally, Tadiran uses slightly different code assignments across product generations. If the steps here do not match what your technician finds, the unit's service manual has the definitive code list for your specific model.