The button you must push to make the door chime works very randomly. This happened two years ago with a unit I brought that was only a year old and I finally just went and bought a new unit. The chime part on both units work fine ( in fact both units would chime when I pushed the one button outside) but now, even though I changed the batteries in all three parts the button must (just as last time) be pushed several times before either unit will chime. Why does this keep happening and what do I do about it?

A worn chime cog wheel will not reset or advance the count. Unless you're good at making gears, you'll need a decent clock repair guy in your area.

it is possible that the doorbell button is sticking down and keeping contact - so the doorbell keeps chiming.

Issue with your Main Panel Power Fail to innitiate ..Du to Component mal-functioning inside the unit ...Possibility Magnetron defect, Or main Transformer Over heat, Also check for safety swich on the door for bad connection...

It sounds like you have a loose connection. Pull the logic board and check for bad connections especially around the small transformer.

From what I can gather from your post it sounds like you may have a bad RPM sensor board. This is a small printed circuit board just in front of the motor.

From User Guide: Interference from a similar unit operating nearby: a) simply remove the batteries from the push button and door chime units and rest for 10 seconds, this will erase memory b) Insert the batteries into the push button and door chime units, the door chime unit will give 2-beeps to indicate that it is ready for the new registration code. Press the Push Button once, it will generate a new operation code randomly and send a wireless ignal to the door chime unit and it will sound to indicate that new operation code is registered and memorised.
(Note with this unit SX85R the door chime is mains powered, not battery powered, but above instructions are the same)

Anytime a door opens and/or closes by itself I look for a smashed wire between the motor unit and the wall button.

If the wire is smashed the insulation becomes so thin that power will leak thru the insulation and activate the door.

Loosen the staples with a small screwdriver and slide the wire about ½ inch to move any areas of thin insulation away from the staples.

The second thing would be a bad wall button or a remote with a sticking button.
Or a remote in someone’s purse that gets the button pushed by other stuff in the purse.

The test is to disconnect the push button wires at the power unit. If the self operation stops you have located the problem. If you reconnect the wires and disconnect the wire at the wall button this will tell you if the problem is the wire or the button.

Hi there. I think I have the same GE chime. It has a series of 4 dip switches on the bell (base) and also in the switch unit. Just make them the same. On mine for example, switch # 1,2 & 4 are up (on) and #3 is down (off). Any combination of 16 codes should work as long as both units are the same. Just as an aside, I had a problem with mine working intermittently, then mostly not at all. It was the actual pushbutton switch inside the button unit. Luckily, I replaced the micro-switch and it's working again. Also during cold wet weather, the 12v battery gets depleted faster than normal probably due to moisture inside the switch unit. I taped a piece of plastic from a sandwich bag over the switch unit to help keep water out.
I hope this helps.....

Joe, ds is a door lock malfunction. The door lock latch shows closed and the door switch shows open. Try this, unplug the unit for 60 seconds and see if the error comes back. If it does, with the power on press and hold the chime and xtra rinse pads together for 3 seconds. This will put it into the service mode. Once in the service mode press the chime button again to unlock and the temperature pad to lock. See if they operate. If still no luck you are going to have to do some tests on the door lock switch to see whats happening. You do have a 2 year warranty on these parts and being that it is only a year old, tell them to throw in the labor....Catriver...post back.