Hot air gun only blows when hold hand near holster

[cupoftea]

Hi,
Our Xytronic LF-852D hot air gun only blows hot air when i hold my hand on, or near the gun holder.
Do you know why this is?

https://www.rapidonline.com/xytronic-lf-852dii-smd-hot-air-rework-station-1000w-85-1229

 

[betwixt]

The advert states "Heat switches off when air gun is in holder and switches on again when the gun is taken out for use" so I would guess whatever senses the proximity of the gun to the holder is broken, possibly a high impedance floating input is picking up noise from your hand.

Brian.

 

[dick_freebird]

I have a SMD rework tool which has a magnetic switch
in the cradle, and cuts heater power when it's placed
into the cradle. Maybe this has gone intermittent and
responds to mechanical movement of the cradle.