My upright freezer "door ajar" alarm keeps sounding, even

From www.justanswer.com/ythi
JustAnswer Customer from San Antonio, TX: My upright freezer "door ajar" alarm keeps sounding, even though the door is closed.
JustAnswer Customer from San Antonio, TX: I checked and a) the freezer is level b) the seal is in good condition c) there is no food pushing the door open.
JustAnswer Customer from San Antonio, TX: I have tried both unplugging for 10 minutes to do a hard reset AND I have replaced the door light switch with a new switch.
JustAnswer Customer from San Antonio, TX: What else could be the problem.
JustAnswer Customer from San Antonio, TX: It is a Electrolux Frigidaire ffu14f7hbg upright freezer (October 2010).
Pearl Wilson: Assistant: How old is your Frigidaire freezer?
JustAnswer Customer from San Antonio, TX: Manufactured October 2010
Pearl Wilson: Assistant: How long has this been going on with your Frigidaire freezer?
Pearl Wilson: Assistant: What have you tried so far?
JustAnswer Customer from San Antonio, TX: This has been happening for a week or so.
Pearl Wilson: Assistant: Anything else we should know to help you best?
JustAnswer Customer from San Antonio, TX: That should be it
Melissa Martin: Home Appliance Technician: Hello my name is* door switch is most likely shorted out.
Melissa Martin: Home Appliance Technician: Here is the part number for the door switch#-#-# To replace the switch, unplug the freezer and gentle pry the door switch out from the freezer lining.
Melissa Martin: Home Appliance Technician: It will go hard because it has extended foam in around it.
Melissa Martin: Home Appliance Technician: Keep gently working it until it is out.
Melissa Martin: Home Appliance Technician: The just transfer the wires and push it back into place.
JustAnswer Customer from San Antonio, TX: Missy, in my message I sent to JustAnswer!
JustAnswer Customer from San Antonio, TX: I specifically stated that I already replaced the door switch with that exact new part and it did not work :(
Melissa Martin: Home Appliance Technician: I am sorry but it does not say that in what I can see.
Melissa Martin: Home Appliance Technician: Some how that was omitted.
Melissa Martin: Home Appliance Technician: my apologies.
Melissa Martin: Home Appliance Technician: Do you have a tester?
JustAnswer Customer from San Antonio, TX: What type of tester, do you mean one to test electrical current?
JustAnswer Customer from San Antonio, TX: This is the full message I sent originally, in case it contains anything else you need.
JustAnswer Customer from San Antonio, TX: My upright freezer "door ajar" alarm keeps sounding, even though the door is closed.
JustAnswer Customer from San Antonio, TX: I checked and a) the freezer is level b) the seal is in good condition c) there is no food pushing the door open.
JustAnswer Customer from San Antonio, TX: I have tried both unplugging for 10 minutes to do a hard reset AND I have replaced thedoor light switch with a new switch.
JustAnswer Customer from San Antonio, TX: What else could be the problem.
JustAnswer Customer from San Antonio, TX: It is a Electrolux Frigidaire ffu14f7hbg upright freezer (October 2010).
Pearl Wilson: Assistant: How old is your Frigidaire freezer?
JustAnswer Customer from San Antonio, TX: Manufactured October 2010
Pearl Wilson: Assistant: How long has this been going on with your Frigidaire freezer?
Pearl Wilson: Assistant: What have you tried so far?
JustAnswer Customer from San Antonio, TX: This has been happening for a week or so.
Pearl Wilson: Assistant: Anything else we should know to help you best?
JustAnswer Customer from San Antonio, TX: That should be it
Melissa Martin: Home Appliance Technician: yes a voltage or a multimeter tester
JustAnswer Customer from San Antonio, TX: Sadly, I have neither, but can order one from Amazon and have it tomorrow.
JustAnswer Customer from San Antonio, TX: Which one should I get and what should I test for?
Melissa Martin: Home Appliance Technician: a mutlimeter is more useful
JustAnswer Customer from San Antonio, TX: OK, I have one arriving tomorrow.
JustAnswer Customer from San Antonio, TX: What should I test when it gets here?
JustAnswer Customer from San Antonio, TX: https:/www.amazon.com/dp/B01N9QW620/ref=cm_sw_r_cp_apa_i_zn6rFbW3XSSS3
Melissa Martin: Home Appliance Technician: Here I am sending the wiring diagram.
Melissa Martin: Home Appliance Technician: You need to check the circuit for the door switch first.
JustAnswer Customer from San Antonio, TX: I am happy to try to test the circuits, but it seems to be fine.
JustAnswer Customer from San Antonio, TX: Here's a video of the machine with the light working and the switch works.
JustAnswer Customer from San Antonio, TX: Customer attachment 8/27/2020 5:43:46 PM
JustAnswer Customer from San Antonio, TX: Here's the second half of the video
Melissa Martin: Home Appliance Technician: is it still beeping?

[@artsiecrafty4164]

I have a brand new freezer that does this. It goes on overnight? There is no one there. Every day it goes off.