Samsung mini split error code E153

Common causes

• A blocked or kinked condensate drain.
• A drain line without continuous fall.
• A failed drain pump.
• A stuck float switch.

How to fix it yourself

You can almost always clear this yourself with the steps below.

1. Confirm water flows from the drain outlet while cooling.
2. Clear the drain with a wet/dry vacuum at the outlet.
3. Check the drain line for dips.
4. If a pump is fitted, check it runs and the float moves freely.

Switch off power at the breaker before opening either unit. Capacitors in the outdoor unit hold a charge for several minutes after power is cut.

When to call a technician

A technician can replace a failed pump or float switch.

Which Samsung units show E153

This page applies to Samsung Wind-Free, Quantum, Max Heat and Free Joint Multi units. Samsung's own documentation lists E153 as "Float switch operated (drain)", the same definition used across the Samsung it is built on. If your unit shows a code with a different shape (for example a four-character code, or a plain number), it is from a different table; use the lookup with your exact code.

Where Samsung shows this code

The indoor display shows E followed by three digits (E101, E554). Units without a full display blink the indicator lamps in a pattern the manual decodes; the outdoor board's 7-segment display or LEDs show the same code. E1xx codes are indoor-unit faults, E2xx are communication faults, E4xx are outdoor sensors, protections and inverter faults, and E5xx are outdoor board and refrigerant faults.

Other Samsung codes

All Samsung error codes