Ice Pipe Heater Error
What it means
This code appears on Samsung refrigerators with a digital display and an ice maker when the control board detects a fault in the small heater that keeps water from freezing inside the fill tube to the ice maker or along the ice route. When this heater stops, water freezes in the tube and ice making stops, while cooling continues normally. The same code can mean something else on other brands, and its meaning may differ between some Samsung series.
Models covered: Samsung refrigerators with a digital display; the code usually flashes on the temperature display. Codes differ between some series.
Symptoms4
- 33E flashes on the temperature display.
- The ice maker makes no new cubes, or the cubes are very small.
- Ice may be visible at the water inlet to the ice maker.
- Fridge and freezer cooling continues normally.
Possible causes5
- Failed ice pipe heater.
- Loose or corroded connector in the heater circuit from moisture.
- Damaged wire between the heater and the control board.
- Frozen tube from low supply water pressure combined with a heater fault.
- Faulty heater output on the control board (less common).
How to diagnose5
- Unplug the fridge for a few minutes, then restart it and see whether the code returns.
- Make sure the water supply valve to the fridge is open and the water filter is not overdue, as the user manual explains.
- You can switch the ice maker off in the settings for now, as your model manual explains, until it is checked.
- A technician unplugs the fridge before removing any cover, then measures the heater and compares the reading with the manufacturer specification.
- The technician checks the connectors and wiring, then the heater output on the control board if the heater is good.
How to fix6
- Restart the fridge after unplugging it, and replace the water filter if it is overdue.
- The technician thaws the frozen fill tube if needed.
- Clean or tighten a corroded connector and repair any damaged wire.
- Replace the ice pipe heater if confirmed faulty.
- Repair or replace the control board only if it is confirmed as the cause.
- After a day of running, confirm new cubes are made and the code does not return.
Repair cost
In Saudi riyals; the highlighted part is the expected range for this fault.
The cost is low for a connector repair or thawing the tube, and reaches the high end when the heater is replaced along with removing ice maker parts.
Prices are rough estimates including the part and the technician’s fee, and vary with brand, model and part source.
Prices last updated: September 2026
Frequently asked questions
Does the fridge still cool with 33E?
Usually yes. The code concerns the ice pipe heater; only ice making stops, while cooling continues.
Why does an ice pipe need a heater inside the freezer?
The tube runs through a very cold area, and the small heater keeps the water inside from freezing before it reaches the ice maker.
Can I thaw the tube myself?
Do not remove covers or use heat sources inside the fridge. A full manual defrost with the fridge unplugged is safe, but removing the ice maker is a technician job.
Was this explanation helpful?
Tap the stars to rate; you can change it later.
What was wrong? (optional)
This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.
Report a mistake
Spotted something inaccurate? Tell us and we will review and correct it.
Report received — thank you
This is your private tracking link. It shows the status and our reply as soon as it is posted.
The link is saved in this browser only.