How to install a PID on a Gaggia Classic 2019 Pro tutorial including 9 bar spring replacement bonus

This is my personal experience regarding the installation of a full BREW +STEAM SSR's and PID controller kit, on a Gaggia Classic Pro 2019 model.
I'm using my Top Cover Box in order to install and have a great look of the PID controller on top of my Gaggia Classic Pro 2019.

PID kit available here: https://coffee-sensor.com/product/gag...

Top cover box: https://coffee-sensor.com/product/gag...

More custom Gaggia Classic parts and accessories: https://coffee-sensor.com/product-cat...

9 bar spring: https://coffee-sensor.com/product/gag...

A few tips and very important safety measures:

After the hardware installation, remember you need to tune the controller in order for it to work perfect on your own coffee machine.
Written tutorial about the set up of the controller is available for my customers.

Remember after hardware installation to put everything to safety and to use electrical tape (or heat insulation) and our plastic power cord protection, in order to isolate your work from high heat and water.
Zip ties can help you contain and put the wires to safety and not have loosen wires inside the machine.
Make sure no wire touches directly the metal case or boiler body.

Make sure BEFORE using the controller and SSR's that your machine does NOT have any water leak present or that could permanently damage the PID and your machine also.
Check all wires, bolts and connections BEFORE using the kit.

DISCLAIMER

The installation of any individual part or entire kit that we sell should only be done ONLY by qualified technicians, with proper electrical and mechanical knowledge.
Coffee machines work with electricity (that can cause shock or death) and water under high pressure and temperature (that can also cause death or high risk injury).
We shall hence not be liable for any damage made to yourself, your machine, any personal injury or other losses caused by improper or incorrect use of our parts or kits.
This installation tutorial represents only a personal experience of the user involved and should not be used as guidance in anyway.
Seek professional advice and help in installing any mods or parts / kits that we sell on your coffee machine.
In case you understand the above mentioned and start an installation process, you agree to accept all liability associated with the modification of your espresso machine and totally agree to hold us in no way responsible or liable for any loss, damage or injury that can occur.
You also agree to indemnify us and / or our resellers against all possible claims, damages, costs or expenses, including legal fees, arising out of any installation, use, misuse or failure of any of our parts or kits.
In case you disagree with the above mentioned, stop installing or using any of our parts or entire kits and do not attempt to install or use them in anyway.
According to EU law, you can always return the parts or entire kits you bought from our company, to be granted a full refund.