Refrigerator
Samsung
Updated Jul 17, 2026
Samsung Refrigerator 33E Error — Ice Pipe Heater Fault & Fix
33E
Samsung · Refrigerator33E on a Samsung refrigerator means the ice pipe heater has malfunctioned. The water suppl…
Quick answer
33E on a Samsung refrigerator means the ice pipe heater has malfunctioned. The water supply line to the ice maker may freeze up, stopping ice production.
What 33E means
The ice pipe heater is a small heating element wrapped around the water fill tube that feeds the ice maker. Its job is to prevent this tube from freezing in the cold freezer environment. When the heater fails (or its wiring breaks), the water tube freezes solid and ice production stops.
How to fix it
- Unplug the refrigerator.
- Remove the ice maker assembly — usually held by 2-3 screws and a wiring harness.
- Inspect the water fill tube. If it is frozen solid, defrost it with warm water (do not use a heat gun).
- Check the heater wires. Look for broken, loose, or disconnected wires around the fill tube.
- Test the heater with a multimeter — it should show some resistance (not open). If open, the heater element is burned out.
- Replace the heater assembly if faulty.
Note: On some Samsung French-door models, the fill tube heater is integrated into the ice maker assembly and cannot be replaced separately — the entire ice maker unit must be replaced.
What does the 33E code mean?
33E indicates the ice pipe (water fill tube) heater has malfunctioned. The tube may freeze, blocking water to the ice maker.
Common causes
- Burned-out fill tube heater element
- Broken or disconnected heater wiring
- Loose connector at the main PCB
- Ice maker assembly failure (heater integrated)
- Main PCB not sending power to the heater circuit
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How to fix the 33E error
Unplug the refrigerator
Wait 2 minutes.
Remove the ice maker
Usually 2-3 screws and a wiring harness.
Defrost the fill tube
If frozen, use warm water to thaw it.
Check heater wires
Look for breaks or disconnections around the fill tube.
Test the heater
Multimeter should show resistance (not open).
Replace if burned out
Replace the heater assembly or entire ice maker if integrated.
Safety first: Water and electricity: ensure the fridge is unplugged before working on the ice maker and heater assembly.
Part you may need: Ice pipe heater / ice maker assembly
Some Samsung models require replacing the entire ice maker when the fill tube heater fails because the heater is built in.
Frequently asked questions
Why is my Samsung fridge not making ice?
33E is a common cause — the water fill tube is frozen because the heater failed. No water reaches the ice maker.
Can I manually defrost the fill tube?
Yes — pour warm water over the tube to thaw it. But the heater must be fixed or it will refreeze.
✎ Written by
REZAUL Karim (Riad)
REZAUL Karim (Riad) is the founder of ErrFixHub and a hands-on electronics and home-appliance repair specialist with over 15 years of experience diagnosing and fixing air conditioners, washing machines, refrigerators, inverters and other household appliances. He built ErrFixHub to turn cryptic error codes into clear, step-by-step fixes anyone can follow — cross-checking every code against manufacturer documentation and real repair-bench experience.
