most of the heating wires are burnt out. Just change one. General machines are provided with spare parts
if not, search ‘Jiajun packaging’ on Google and ask Mr. Dong for one!
a very simple vacuum packaging machine does not heat up
replace the heating wire when the heating wire is burnt out
if the problem cannot be solved by replacing the heating wire, please consult Shanghai Yixing Packaging Machinery Co., Ltd., a company specializing in production, sales and after-sales
there are the following reasons:
First: check whether the transformer in the vacuum machine works normally
2: use the machine of time relay to see if the relay is burnt out
III: for machines using circuit boards, if the transformer is OK, the circuit board has problems and needs to be replaced.
generally, the heater is damaged