hot-air-station-dat

common defective error

• temperature sensor read wrong

hot air handle

• high-voltage-warn-dat

yellow wires 220VAC

3V and 5V DC also on board for fan-dat, etc

wires

✅ In a hot-air handle with only heater + temperature sensor, no fan and no reed switch

The internal parts are:

Heating element (ceramic heater) → always 2 wires

Temperature sensor → usually 2 wires

Protective ground wire → 1 wire

This adds up to 5 wires, matching your description.

ref

• hot-air-station

• soldering-tools-dat - fab-workspace-dat