LG Refrigerator er-hs error code
The humidity sensor has a fault. On models that have one, it helps the fridge manage moisture and frost levels.
Also shown as: er-hs, ER-HS, Er HS, er hs
Last updated: October 6, 2026
What causes the er-hs error?
- Failed humidity sensor
- Wiring or connector fault
- Moisture damage to the sensor
- Failed main control board
How to fix LG er-hs — step by step
Work through these in order, from simplest and safest first. Stop as soon as the code clears.
- Power reset the fridge
Unplug the fridge for 10 minutes, then plug it back in. This clears temporary sensor faults. - Check door seals
Make sure the doors close fully and the gaskets seal all around. Doors left ajar flood the fridge with humid air and stress the sensor. - Defrost if frost is heavy
If there is heavy frost inside, do a manual defrost with the fridge unplugged and doors open for 8 to 12 hours.Safety warning: Never chip ice off with a sharp tool.
When to call a technician
- The code returns after a power reset
- Excess condensation or frost keeps forming
- Cooling performance is dropping
- The sensor area shows corrosion or damage
Frequently asked questions
What does the humidity sensor actually do?
It measures moisture in the air inside the fridge so the controls can run fans and defrost at the right times.
Can I still use the fridge with Er HS?
Usually yes, cooling continues. But humidity control suffers, so frost and condensation can build up.
Will a reset fix it permanently?
Only if it was a glitch. A truly failed sensor will bring the code back and needs replacement.
Sources
Every meaning and fix above was checked against official manufacturer documentation:
FixCode provides general troubleshooting information only — not professional repair advice. If you are unsure about any step, stop and call a qualified technician. Repairs done incorrectly can be dangerous and may void your warranty.