Door ajar alarm ringing and refridgerator not cooling enough

There is a fuse for the door ajar sensor and the alarm, but it may not be advisable to pull it as it could disable other functions as well. The fuse box is located under the dashboard on the driver's side. The fuse for the door ajar sensor and the alarm is usually labeled as "door" or "security."
However, pulling the fuse for the door ajar sensor and the alarm may not completely solve the problem. If the latch is not sealing properly, the sensor may still detect an open door even if the alarm is disabled. In this case, you may need to have the latch mechanism inspected and possibly replaced.
If you do decide to pull the fuse, make sure to consult your owner's manual to ensure that you are pulling the correct fuse and that it won't affect any other important systems, such as the power windows or the radio.
If you are not comfortable with DIY repairs, it may be best to bring your vehicle to a reputable mechanic or dealership to have the issue diagnosed and repaired.

Hello Deena;

My name is Peter. I am a retired field service refrigeration technician.

There is no reset for the alarm. The alarm goes off when you are not maintaining temperature.

During the time the door was ajar, warm air got into the freezer either icing up and locking the cooling fan or forming a block of ice on the cooling coils (Restricting cooling air flow.)

The best thing you can do, unless you want a $300.00 plus service call to defrost everything, is to turn power off to the freezer. Open the freezer door. Have plenty of old towels to soak up the water in the bottom of the freezer as it defrost.

You did not provide a model number which is located on the inside wall of the freezer. Every 8-10 hours your freezer will completely shout down for 20-30 minutes where only the light works and the defrost heater turns on. The ice build up is too much for the defrost heater to handle.

In some freezers the defrost mode is in the control board, in others it is a separate component that you can repeat trip using a flat head screw drive.

Its a thick pin surrounded by a rubber ring/bellows that is in the doorframe of each door. Each pin operates a switch. When the door closes it presses the pin in and when it opens the pin slides out so it protrudes into the door frame. Open each door one at a time and press in the pin with something strong like a shoe heel, this simulates that door being closed. Do it several times, till you find which switch is not working all the time. Change that switch by removing the rubber surround and unscrewing its fasteners.

What is the model number of your unit?

You need to adjust or replace the switch in your door jam. It is set too far in, and any pressure is making it connect.

there is a switch in each door that senses the door is open, it is called the door ajar/courtesy light switch (imagine that), they stick and have this problem, replace it.

Try getting the wiring diagram from Alldatadiy.com or find a service manual online for your car.

If the door was left ajar for any extended period frost has built up on the cooling coils. A complete defrost of the freezer should take care of the problem. Normally a frost free system will clear the ice from the cooling coil when the defrost time cycle happens. However frost may have built up in areas where the heaters can not readily remove it in a normal defrost cycle and shutting the unit down with the door open for about 24 hours should clear it out.

Take it to the mechanic, this could involve the ABS system