iron too hot : ? is this safe?

qweets said:

hello

i have just installed a new heater into my desolderiron. i am a little worried, i hope someone can help.

before i installed the new heater, the old iron was not working so well, the tip was stuck, blocked, it was quite hot; but i do not remember the heater chassis getting hot at all. but as i recently bought it second hand, I have never had it working to find out.

Now i have installed the new heater. the manual says 'a little smoke is normal after installation.'

I am getting a steady thin stream of smoke and the iron heater (in the picture highlighted red) is hot, but not just at the tip, rather all over the metal chassis too. is this normal? i thought there was some type of insulation to stop/reduce this heat transfer from happening?

i put the thin earth wire from the heater to the connector inside the handpiece that traces to a thin green wire. And the thicker blue and other blue wire from the heater to the connectors inside the hand piece that trace to the thicker wires. So I believe i have them the right way around.

i had it on for 5 mins the smoke was still stready.

Any thoughts would be appreciated.

picture below >

View attachment 98899

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