Suddenly the door will not latch and the screen says "close door" even when the door is held closed. I see a review on the inet from a customer saying she had the same problem within a month of her purchase.
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Re: door will not latch
The door switch mechanism is broken. Microwave doors have a
special arraingement of double switches to ensure it is not open during
cooking. Because everything is made from plastic nowadays, stuff
like this breaks easily. The switches are commona nd cheap but
the mounting parts may not be.
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By the sound of your description of the problem, it sounds like the door is closing and latching closed OK. This rules out a door latch return spring issue. I think it is a door sensing switch problem, either the switch contacts are not going to zero ohms (they can get a slight grease film build up on them [even in the box- brand new] and show 5 ohms or more) or the switch body is not in proper position, sometimes the switch mounting posts can break if the door gets closed too hard (slammed). It could also be a wiring problem to the control board or a board problem itself but this is the least likely cause. It is also possible that a latch head can get broken off or cracked and is just not noticed..You need an ohm meter to diagnose the switch's electrical condition. Please be sure to unplug the unit from the wall before doing any disassembly.
Hello Scott Noble - If I was in your position, I personally will recommend consulting a certified technician first for an accurate diagnosis. Depending on what part(s) is damaged from the door, the microwave could possibly have faulty switches, door switches, or latch which only a professional can repair.
The small tab on the latch broke so the spring was loose. Took my drill and drilled a small hole in the main body, ran a small wire tie thru it and hooked the spring to the wire tie. Works great and more durable than the orginal dinky hook.
The door latch is either cracked or broken.The door when gets closed the door latches clicks.But if the door latch is loose or cracked it will not click and door will not close.The door needs to be disassembled and the door latch has to be replaced, if the latch is cracked.Also to check the latch from inside the door needs to be removed.--------
This will help.thanks.Helpmech.
I assume you're talking about the spring that keeps tension on the door hooks (latch heads, as they're called by Sharp).
When you shut the door, the "hooks" are held down by this spring to actuate the door switches.
To fix this, you'll have to separate the door panels. You can download the service manual from my Web site.
There's a loop built into the latch head assembly and sometimes the loop breaks. If so, you can drill a tiny hold in it and reattach the spring there.
There may also be a loop on the innner door panel to hold the spring. That one can break, too.
If it's broken, you'll have to find a way to secure the spring to the panel.
If the panel material is thick enough, a tiny screw eye could be inserted, then epoxied overnight to secure it.
I've attached a diagram to this message that should help you.
If that doesn't help you, I have the service manual for the R1600-series microwaves on my Web site at:
Repost if you need more help.