The freezer was showing high temperature, then defrosted overnight...why

The high temperature alarm or the red light indicator came on because the internal temp is high. This means that the temperature inside your appliance is still too warm. Keep your freezer/frig door closed and the light will go out in a few hours and you'll then be able to adjust temp or keep it as it was before defrosting.

Best to You

No particular number as the ideal thermostat setting will vary depending on the age/efficiency of the appliance and the ambient temperature.

A midpoint setting would usually plunge the cabinet temperature well below freezing and guidance from the thermometer will allow you to fine tune to the correct temperature of minus 27 C over a period of a few days.

As your freezer unexpectedly defrosted, it has probably developed a fault...

Don't u mean to low?

Defrost issue most likely

APPLIANCE 911

When the aggregate does not start while the mains is on.please check the thermostat or the aggregate.
I hope you could save the food, because its a serious problem and needs a speedy repair.

clean the dust from underneath and make sure fan in freezer is working.

Self defrost mechanism has a problem. Check the defrost timer and defrost heater element for proper operation. Ice buildup is the culprit.
If you unplug and defrost overnight, replug, it will work fine till the ice builds up again.

The Unit has a defrost cycle either every six,tweelve,or twentyfour hours.It sounds like the thermal cut out is faulty located in the freezer side behind the wall where the fan is situated It is usually a steel round disk shaped sensor with two wires coming out of it.It,s purpose is to shut the power off to the defrosting element once it reaches the desired temperature to melt the ice away and them the unit cycles again after defrosting.Hope this helps.

Hi, It's a common problem with no-frost refrigerators, you have a defrost problems, two scenarios. (1) hot air entering freezer/refrigerator, examples. hot summer days, regular openings, high room temperatures, hot foods and broken door gasket, leaving freezer/refrigerator doors slightly open overnight, could cause your evaporator (coils) to freeze/ice up. cases like this, unplug/disconnect your refrigerator, remove produce, clean and let it defrost, for an hour, make sure all ice melted. plug or reconnect your refrigerator let it work/ run empty for another hour, then put back your produce. sure it will work perfect for the next 3-4 days. (2) next type of defrost problem could be faulty defrost heater, defrost thermostat, you will have to open back panel on freezer side to check. check your defrost heaters, defrost thermostat and defrost timer, it's better to change defrost timer and defrost thermostat together, or change faulty ones independently. but before you change any parts, clean and defrost refrigerator first, could just be regular openings, hot days, etc. if after 3-4 days it started to ice up, then check following parts. defrost heater. defrost thermostat and defrost timer, let me know if icing occurs after 3-4 days then we can check those parts i suggested. remember to always disconnect/unplug your refrigerator, before attempting any repairs. good luck

take back panel off inside freezer. check continuity thro heater and thermal fuse in series with heater