My alarm went off for approximately 10 minutes. Then we pulled it out of wall. Then replaced it ...the alarm read gas....222...went off for a minute more...then stopped and reads 0 what should we do

I believe this is a problem with the temperature sensor of this Kenmore. The troubleshooting is a bit involved with about 13 steps and can involve the use of a multi-meter. How to Troubleshoot an F3 Code on a Kenmore Oven Model # 30168 (weekand.com)

Turn off electricity to the oven by turning off the circuit breaker or disconnecting the power cord from the wall outlet.

Wait for 5 minutes and restore power to the Kenmore oven; this power interruption will reset the electronic oven control module.

Turn on the heat to the oven; if the F3 error code returns, turn off the electricity to the oven again or turn off the gas supply by closing the gas **** at the oven's gas supply tube.

Wait for the oven to cool.

Open the oven door and look inside to locate the oven temperature sensor. From the front of the oven, it is usually in the upper left-hand corner. The sensor is a thin metal probe about half the diameter of a pencil that protrudes from the rear of the oven into the oven cavity.

Remove the two screws securing the sensor to the oven wall and carefully pull the sensor probe toward you until you can see the plastic wire connecting clips.

If no screws are visible, pull the oven away from the wall, remove the upper rear panel and locate the temperature probe in the upper right-hand corner. From this side, it will look like a small oblong plate with two wires projecting from it.
Remove the two screws and carefully pull out the sensor from inside of your Sears wall oven.

Disconnect any plastic clips that connect probe wires to electronic oven control (EOC).

Set your probe on a flat surface and place one lead of an ohm meter on each of metal tabs in plastic wire connector attached to probe.

At room temperature, ohm reading should read within 10 percent of 1,100 ohms.

If reading is higher or lower than that, replace your sensor.
If your sensor tests OK, check for any disconnected, broken or burnt wires in rear of range.

Pull the mains plug for 10 minutes. Don't open the doors, plug it back in. That should reset it.

If you are referring to the Passlock immobilizer, here is the relearn process.

PASSLOCK 10 MINUTE RELEARN


AUTO LEARN
Time required, approximately 10 minutes:

1. Insure that the battery is fully charged.
2. Use the scan tool in order to clear the DTCs.
3. Turn the ignition switch from the OFF position to the CRANK position attempting to start the vehicle. The vehicle will start and then stall.
4. Leave the ignition switch in the ON position while observing the security indicator.
5. When the security indicator turns off, which can take up to 10 minutes, turn the ignition switch off. Wait 10 seconds.
6. The BCM and the PCM will learn the new code on the next start attempt.

Simple. Your solenoids are overheating because of age. Most American dryers use the same 2 coils:




This video of mine shows how to replace them:





If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

send the detector back and have it replaced,
The CO sensor will not alarm to levels of CO below 30 ppm and will alarm in the following time range when exposed to the corresponding levels of CO: 70 ppm CO Concentration 60 - 240 minutes 150 ppm CO Concentration 10 - 50 minutes 400 ppm CO Concentration 4 - 15 minutes The alarm shall include a piezoelectric horn that is rated at 85 decibels at 10 feet. When the unit detects carbon monoxide, the alarm pattern will be four (4) short beeps - followed by five (5) seconds of silence - followed by four (4) short beeps. The unit shall incorporate 2 LED's. A green LED will be illuminated to indicate the alarm is operating properly when plugged into an outlet, and will flash every 10 seconds when on backup battery power. A red LED will flash to indicate that carbon monoxide has been detected until the device is reset or CO is eliminated or will flash to indicate low battery or alarm malfunction. The unit shall at a minimum meet the requirements of CAN/CSA 6.19-01. It shall also include a 10-year manufacturer's limited warranty or

Test/Reset Button - Tests the unit for proper operation. Resets the carbon monoxide alarm.
• Tamper Resist Feature - If activated, unit goes into constant alarm mode if it has been unplugged or has come loose from the outlet.

My $350 Echo PB-500T seized up. I almost cried.

The solution was to drain the fuel tank.

• Refill fuel tank with an 2-cycle Oli/gas mixture.
  

• 40:1 =3.2 oz to one-gallon gas, do not use Alcohol base gas.
  

• Remove the spark plug.
  

• Pour approximate 1/8 oz 2-cycle Oli into the spark plug hole.
  

• Remove the pull cord assembly (4-bolts)
  

• This reviled the crank shaft-Pull cord bracket
  

• I use a large monkey wrench to turn the shaft (CW) Clock-wise.
  

• Complete approximate 20 revolutions.
  

• Reassemble, but don't install the spark plug yet.
  

• Complete approximate 20 more revolutions
  

  by pulling the pull cord.
  

• Use q-tips to swab the top of the piston, as much as possible.
  

• Install the spark-plug and crank, it will smoke for amount 7-10 minutes
  

My reading of the instructions is that the answer to your question is "NO".

See the section on "Alarm". This indicates that there is no repeat function that you require.

You can get instructions from the Timex web site "timex.com".

At the bottom of the screen click on "manuals/downloads", then on "product
manual download"

Enter your watch type in the search box and click on "search"

Problem is your gas solenoid coils. When they get worn they will open til they get out then shut. They will need to be replaced.

part nos 694540 and 694539

I did find two authorized dealers:
www.kenmarwatches.com
www.princetownwatches.com
Contact both and request users manual fur your specific model. They must be able to help.

How long did it take you to replace the battery? If you did a quick switch, try disconnecting it again and leave for 10-15 minutes. Maybe it will reset? Did you replace the battery before it went completely bad? Is this a stock alarm?