Heat pumps · Error codes · Samsung
E105Samsung · Samsung, all models
E105 on a Samsung heat pump: Wi-Fi communication error
Short answer
On a Samsung heat pump, E105 means: Wi-Fi communication error. The heat pump keeps running.
Reviewed 23 September 2026 · 1 source
What it means
The manual says: Wi-Fi communication error.
Part involved: Wi-Fi module.
When it shows: Unit self-diagnosis: Wi-Fi communication error.
Likely causes:
- Wi-Fi communication fault between hydro unit and home network/SmartThings.
- Engineer checks per Samsung service manual: Check the Wi-Fi kit/module connection and the home router; re-register the unit in SmartThings.
Is it safe?
| Does the heat pump stop? | No |
|---|---|
| Severity | Warning |
The heat pump keeps running.
Resetting itself: unknown.
Manual reset: unknown.
What you can check
- Note the full error code shown on the controller; check the heat pump breaker/isolator in the consumer unit is ON; check your home Wi-Fi router is working and has not changed name/password; then contact your installer or Samsung service; Samsung manuals do not describe a homeowner reset for this code.
What the engineer will check
- Check the Wi-Fi kit/module connection and the home router; re-register the unit in SmartThings. Any work inside casings, on PCBs, wiring, sensors, pumps, valves or refrigerant is engineer-only.
Who to ask for: Heat pump engineer / controls.
Certification: None specific.
What you might notice
Sources
- Air to Water Heat Pump User manual AE200DN**** / AE160DN**** / MIM-E03FN (2024 ClimateHub / control kit) DB68-12922A-05 ↗ · DB68-12922A-05 · page p.55 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026