Samsung HE
Water Heating Error
High severityExpert Guide
SeverityHigh
What Your Machine Is Actually Telling You
HE (also HE1, HE2, HC on various Samsung models) means the water temperature isn't rising as expected during a heated cycle. The board sent power to the heater but the NTC sensor didn't detect the expected temperature increase.
HE variants:
- HE1 = water heater (element) not heating.
- HE2 = dryer heater fault (combo units).
- HC = newer display format for heater circuit.
How Samsung heating works: A tubular heating element is immersed in the tub water. When energized, it heats the water to the cycle target (30°C, 40°C, 60°C, 90°C). An NTC thermistor clipped to the element monitors temperature and tells the board when to stop.
Common causes:
1. Heating element burned out (30%) — element physically broken (open circuit).
2. NTC sensor failed (20%) — giving wrong reading, board thinks heater isn't working.
3. Element leaking to ground (15%) — insulation breakdown, tripping GFCI.
4. Wiring to heater (10%) — connector corroded or wire broken.
5. Main board heater relay (10%) — relay not sending power.
6. Limescale buildup (10%) — element overheating due to insulating scale layer.
7. Very cold inlet water (5%) — takes too long to heat in winter.
HE variants:
- HE1 = water heater (element) not heating.
- HE2 = dryer heater fault (combo units).
- HC = newer display format for heater circuit.
How Samsung heating works: A tubular heating element is immersed in the tub water. When energized, it heats the water to the cycle target (30°C, 40°C, 60°C, 90°C). An NTC thermistor clipped to the element monitors temperature and tells the board when to stop.
Common causes:
1. Heating element burned out (30%) — element physically broken (open circuit).
2. NTC sensor failed (20%) — giving wrong reading, board thinks heater isn't working.
3. Element leaking to ground (15%) — insulation breakdown, tripping GFCI.
4. Wiring to heater (10%) — connector corroded or wire broken.
5. Main board heater relay (10%) — relay not sending power.
6. Limescale buildup (10%) — element overheating due to insulating scale layer.
7. Very cold inlet water (5%) — takes too long to heat in winter.
What You're Probably Seeing Right Now
- HE appears during a warm or hot wash cycle.
- Clothes come out cold despite selecting hot.
- Machine trips the circuit breaker (GFCI) during hot cycles.
- Cold wash cycles work perfectly.
- HE happened suddenly — element failure.
DIY Fix — From Easiest to Hardest
1
Test on Cold First (2 minutes)
1. Select a cold wash cycle.
2. If it completes normally: confirms the heater circuit is the issue.
3. Your machine still works for cold washes while you get parts.
2. If it completes normally: confirms the heater circuit is the issue.
3. Your machine still works for cold washes while you get parts.
2
Test NTC Sensor (5 minutes — Cheapest Fix)
1. Unplug.
2. Access the heating element (bottom-rear of tub).
3. The NTC is the small probe clipped into the element.
4. Disconnect wiring.
5. Measure resistance: **8-12kΩ at room temperature** = good.
6. OL or 0Ω = dead sensor. Replace ($10-25).
2. Access the heating element (bottom-rear of tub).
3. The NTC is the small probe clipped into the element.
4. Disconnect wiring.
5. Measure resistance: **8-12kΩ at room temperature** = good.
6. OL or 0Ω = dead sensor. Replace ($10-25).
3
Test the Heating Element (5 minutes)
1. Disconnect element terminals.
2. Measure resistance: **20-40Ω** = good.
3. OL = open circuit (burned out).
4. **Ground fault test:** measure from either terminal to the metal sheath.
5. Should read OL (infinity).
6. Any resistance = element leaking, MUST replace.
**A ground-leaking element trips breakers and is a safety hazard.**
2. Measure resistance: **20-40Ω** = good.
3. OL = open circuit (burned out).
4. **Ground fault test:** measure from either terminal to the metal sheath.
5. Should read OL (infinity).
6. Any resistance = element leaking, MUST replace.
**A ground-leaking element trips breakers and is a safety hazard.**
4
Replace Heating Element (30 minutes)
1. Unplug, drain machine.
2. Element is accessed from the back or front (model dependent).
3. Remove retaining nut (don't fully remove — push the stud inward).
4. Pry element out — it's sealed with a rubber gasket.
5. Clean the gasket seat.
6. Install new element ($20-50).
7. Replace NTC sensor at the same time (combo deal).
2. Element is accessed from the back or front (model dependent).
3. Remove retaining nut (don't fully remove — push the stud inward).
4. Pry element out — it's sealed with a rubber gasket.
5. Clean the gasket seat.
6. Install new element ($20-50).
7. Replace NTC sensor at the same time (combo deal).
5
Descale Prevention
To extend element life:
1. Run Samsung Drum Clean (Eco Drum Clean) monthly at 90°C.
2. Use the correct amount of detergent.
3. In hard water areas: add washer descaler every 3 months.
1. Run Samsung Drum Clean (Eco Drum Clean) monthly at 90°C.
2. Use the correct amount of detergent.
3. In hard water areas: add washer descaler every 3 months.
When to Call a Pro
- •Element + NTC combo — $100-$250 installed.
- •Main board heater relay — board repair: $150-$400.
- •Trips GFCI — element must be replaced: safety hazard.
- •Dryer heater (HE2) — specialized repair: $150-$350.
What It'll Cost You
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