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Error code reference

Samsung Air Conditioner Error Code E160

Indoor unit fan motor starting error

Samsung codesSamsung air conditioner codes

Indoor unit fan motor starting error - no RPM feedback returned from PID control style fan motor to MICOM.

First step from the service manual

Check the HALL IC connector which provides RPM feedback.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What E160 means on a Samsung air conditioner

Samsung E160 is an indoor unit fan motor starting error. Specifically, the MICOM (microcomputer control board) did not receive any RPM feedback signal after commanding the fan motor to start. The indoor fan on this system uses a PID control style motor, which relies on a HALL IC sensor to generate pulse signals proportional to rotor speed. These pulses are sent back to the MICOM so it can confirm the motor has started and regulate its speed through closed-loop control. When no RPM signal is returned within the expected startup window, the MICOM registers E160 and halts operation to prevent damage from an uncontrolled or stalled motor.

The HALL IC is a magnetic sensor embedded near the motor rotor. It detects the passing of rotor magnets and converts that motion into a digital pulse train. If the connector between the HALL IC and the control board is loose, corroded, or broken, those pulses never reach the MICOM, triggering the fault even if the motor itself is mechanically functional. This is why the first diagnostic step is to inspect the HALL IC connector for proper seating, pin damage, and continuity.

Beyond the connector, failure causes can include a defective HALL IC sensor, a faulty indoor fan motor that fails to rotate on startup, a damaged wiring harness between the motor assembly and the control board, or a failed MICOM that cannot process incoming feedback signals. A motor that is mechanically seized due to bearing failure will also produce this error since the rotor cannot turn and no pulses are generated regardless of sensor condition.

Source: manufacturer service documentation.

Common causes of E160

  1. 01

    Loose or faulty HALL IC connector

    Wiring / connection

    The connector carrying RPM feedback from the HALL IC sensor to the MICOM may be unseated, corroded, or have a damaged pin. This is the first component to inspect since it can cause a no-feedback fault even when the motor itself is working.

  2. 02

    Defective HALL IC sensor

    Part replacement

    The HALL IC sensor itself may have failed and is no longer generating pulse signals as the rotor spins. This will produce the same no-RPM-feedback condition as a connector fault, and the sensor would need to be replaced.

  3. 03

    Failed indoor fan motor

    Part replacement

    If the fan motor fails to rotate on startup due to an internal winding fault or capacitor failure, no RPM pulses are produced regardless of sensor condition. Listen for humming without rotation as a diagnostic indicator.

  4. 04

    Seized fan motor bearings

    Part replacement

    Worn or failed bearings can prevent the rotor from spinning mechanically even if the motor receives power. The motor may emit a grinding or humming sound at startup before the fault is logged.

  5. 05

    Damaged wiring harness or failed MICOM

    Part replacement

    A broken or shorted wire between the motor assembly and the control board can interrupt the feedback signal path. In rare cases, a faulty MICOM may be unable to process incoming RPM signals correctly.

See the test procedure for each cause

Frequently asked questions about E160

What does E160 mean on a Samsung air_conditioner?
E160 indicates that the indoor unit fan motor failed to start correctly and no RPM feedback was returned to the MICOM control board. The system uses a PID control style fan motor with a HALL IC sensor that sends rotation pulses back to the board. When those pulses are absent during startup, the MICOM logs E160 and shuts down to prevent damage. The fault points to the HALL IC connector, the sensor itself, or the fan motor.
Can I fix E160 on my Samsung air conditioner myself?
A knowledgeable DIYer can start by checking whether the HALL IC connector is properly seated and free of corrosion or damage, as a loose connection is a common cause. However, testing the HALL IC sensor output, diagnosing motor winding faults, and replacing internal components typically require electrical knowledge and proper tools. If the motor or control board needs replacement, professional service is recommended.
Is it safe to keep running my air conditioner when E160 appears?
No. When E160 is active, the unit has already shut itself down because the indoor fan motor did not start properly. Attempting to restart and run the system repeatedly without diagnosing the fault can stress the motor windings and the control board. It is best to leave the unit off until the root cause is identified and corrected.
Will resetting the air conditioner clear the E160 error?
A power reset may temporarily clear the error display and allow the unit to attempt a restart, but if the underlying problem persists, E160 will return as soon as the MICOM fails to receive RPM feedback again. A reset is not a fix. The fault will continue to recur until the HALL IC connector, sensor, wiring, or motor is properly diagnosed and repaired.
How much does it cost to repair a Samsung air conditioner E160 error?
Repair costs depend on which component has failed. Connector reseating or minor wiring repairs are generally low cost and may only involve a service call fee in the range of $75 to $150. Replacing the HALL IC sensor or fan motor typically adds parts costs ranging from $50 to $300 or more depending on the unit model. A full control board replacement represents the higher end of repair costs.

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