FixByModel
33E

Samsung 33E: Ice pipe (fill tube) heater error

The heater that keeps the ice maker's water fill tube from freezing has an electrical fault. Without it working, the fill tube can freeze and block ice production.

May need a technician

By the FixByModel editorial team · Verified 2026-09 · Researched against manufacturer support & repair references (below)

Most likely causes

  1. Failed ice pipe heater element
  2. Disconnected or damaged heater wiring
  3. Loose connector at the control board
  4. Control board fault
Before you start — unplug the refrigerator before working on it. Mind sharp metal edges, and never open the sealed refrigerant system — compressor, sealed-system and refrigerant work must be left to a qualified technician.

Step-by-step fix

1Power resetUnplug the refrigerator for about 2 minutes, then restore power to see if the code was a glitch.
2Thaw a frozen tubeIf the fill tube is iced, turn off the ice maker and defrost the area so water can flow again.
3Check connectionsIf accessible, inspect the heater's wiring plug for looseness or damage.
4Call a technicianIf 33E returns, the ice pipe heater or its wiring usually needs professional testing and replacement.

Still showing 33E?

If you’ve worked through every step and 33E keeps returning, an internal part likely needs testing and replacement. That’s a job for a qualified appliance technician, who can measure the suspect part against the service-manual spec before replacing it.

Which models this applies to

Samsung refrigerators. Most Samsung refrigerators with an automatic ice maker.

FAQ

What does Samsung 33E mean?

Ice pipe (fill tube) heater error. The heater that keeps the ice maker's water fill tube from freezing has an electrical fault. Without it working, the fill tube can freeze and block ice production.

What causes Samsung 33E?

The most likely cause is failed ice pipe heater element. Other causes include Disconnected or damaged heater wiring; Loose connector at the control board; Control board fault.

Can I fix Samsung 33E myself?

Some checks are DIY, but this code often points to an internal component, so it may need a qualified technician.