my freezer has stopped working. On this model cannot find a thermostat just a circuit board. The freezer will start if I tap the circuit board, it will then cool down, later the freezer will defrost as again the pump will not cut in unless i tap the circuit board. Do I need to replace the whole board or am I missing something obvious?
Ive just revived one of these with similar symptoms that eventually died completley. A trawl of the internet shew that the most common fault is the SHRACK relay on the board. An Omron G5LE-14 relay is a better quality replacement at minimal cost. Its a ten minute job to replace it with a soldering iron. The RS part number is 369-488. However they are sniffy about dealing with non trade account holders by mail so if you dont have a trade counter nearby Rapid Electronics are a better bet (part number 60-4198). If you are really mean over postage there are also some ebayers offering the same part (e.g. lesjacksam) double check part numbers before going down that route though. Hope this helps somebody.
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please check the thermostat setting and make sure this thermostat device is working if it,s good and working then please check the compressor relay device and all electrical connections.
and contact to your service technician , for furthermaintenance.
If the evaporator coils behind the back panel of the freezer
are icing up because of auto defrost failure that will stop the circulation of
check defrost timer, defrost heater, defrost thermostat. In
most newer models the timer has been replaced by an electronic control board.
If the heater and thermostat are ok it’ll be the control.
You can turn the defrost timer till it clicks
and everything shuts down. The heater should now come on. If it does, replace
the timer. If it doesn't, check the heater and defrost thermostat. Turn the
timer again till everything starts back up to end the defrost cycle.
How to check
the defrost timer may need reseting. when the defrost is on, it cuts power to the compressor so they don't run at the same time. it's usually behind the bottom front grate on the right side. also check the main circuit board. there's a fuse on it.
Sounds like the sensor circuit may be open. Here is the problem, either it has a board that's bad or the sensor is out. Ohm the sensor circuit and record the temp the box is at in refrigerator and freezer. then the ohm reading. Contact manufacturer or representative of manufacturer, and ask what the sensor should read at the temps you have.
Generally if you get a reading on the sensor circut the sensor is ok, and the board is out BUT not always. this is why you need the temperature and the ohm readings. Sometimes the wire diagram has a legend with these reading on it. Look all around the underneath and behind sections for an envelope containing the wire diagram.
the temperature control is bad. when you push the fast freeze it bypasses the thermostat for 12-24 hours depending on which model you have. I am not able to find any parts information with the model number provided but you should be able to find a temperature control at any local appliance parts house or online thru any reputable supplier. Thnaks Peyton
Yes, boards may need replacing, but not at the expense of the door, apparantly your "engineer" would rather work on older models that may require a hammer. Best advice would be given knowing the make and model number of your unit. A professional should be able to diagnose the board processes as well as the compressor in a short amount of time. Check the defrost heater (after pwr is restored to unit) for the freezer side (placement depending upon model) for continuity (basically a heating element for the evaporator coils - which will freeze without defrost). Proper defrost will help lessen the load on the compressor. Check the overload relay on the compressor itself for failure and replacement of relay. Have the unit defrosted, svc defrost htr, thermostats/thermolinks , compressor, before checking computer board operations.
JennyT just trying to help with this. I assume this is a self defrost model. If so then is there an ice build up on the back wall? If so then the unit isn't defrosting. That is why pushing the Fast Freeze button is no longer working. You can get by however. Remove all the food from the freezer, put a vacumn in the freezer and shut the door. Turn on the vacumn, this will pull the warm air thru the freezer and in 30 minutes to an hour it will be defrosted enough to work until you can get someone to replace the 1 of 3 parts that the defrost system uses. The vacumn is what I use to defrost my nonself defrosting freezer. Sorry I couldn't be of more help.