The auto defrost operation in the fridge appears not to be working as well as it should as ice seems to have melted then frozen again on the back wall .I have found that the door seal has a split down one side.Could this be causing the problem and how easy is it to fit a new one?
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Re: Ice is building up on the back wall of fridge
Option 1 defrost fridge manually by switching off power for 24 hours, allowing built up ice & frost to melt.
Option 2 Switch off mains power and using a hair drier blow hot air into the freezer supply vents. This shuold shift the ice in a couple of hours
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well yes and no , defrosting it will temporally make it work , but main problem is there isn't proper air flow over evaporator coils id clean them with soap and water while defrosting out unit , if low airflow is allowed to continue then refrigerant gas will build to high press and escape and render unit a total replacement
If defrost heaters in freezer stop operating during defrost cycle, ice builds up around coils and blocks cool air from being blown to refrigerator side. If ice you need to defrost with heat and replace heaters. Remove rear freezer wall and look for solid ice covering coils. Also push freezer door switch closed while keeping door open and determine if fan is working.
Unless that fridge has an automatic defrosting cycle, NO water should be collecting at the drain area under normal circumstances. The only time that drain is needed is during defrosting (manual or auto).
Does the unit ever turn the cool cycle off or is the fridge always running (does the fridge ever stop humming)? If the fridge is always running, ice will build up in the fridge and it is either because the thermostat is broken or the door is not sealing properly allowing the cold air to escape. This can be due to something inside the fridge is preventing the door from closing properly, the door itself being not properly aligned with the fridge compartment, a broken door seal or a bend door or a bend fridge frame.
Ice can build up fast when a fridge is installed in an area with high humidity (like in Florida) and the door is opened frequently (like every 5 minutes to get a beer out, like during a house party).
If the fridge door seems to seal properly and the fridge seems to keep things cool, it might be enough to defrost the fridge to get it back in proper operating condition.
When loading the fridge, allow enough space between items, to permit the air to circulate.
Good luck :)
This can be an auto defrost condition. If your fridge is auto defrost, what happens during the defrost mode, ice build up is heated (in the area immediately near the evaporator coils, not in the main area) . This ice becomes water and drains out via a small tube, typically at the back or bottom of the machine. This water normally goes into a pan under the fridge, and evaporates without the user being aware of it.
If anything causes excessive ice build up (opening the door too much, door seal leak, etc.) then you get too much water and the pan overfills and spills out.
I suggest that you remove the pan from under your fridge, clean it, and put it back, and test to see if yo actually have anything wrong, or not.
This leak would NOT be refrigerant, as you would cease cooling if so. it is all condensation, which is physics and normal...
try to clean the drain of your unit maybe it is clog up declog it to avoid drip. u said that ther is a build up of ice this means auto defrost not activate try to chek the defrost heater or defrost timer if have the unit this. or try to allign the door gasket possible theres a gap entry of outside air cause of build up of ice. bec it is came from moisture of air out side or avoid to much door opening.goodluck.
Your automatic defrost cycle may not be working. Feel the walls inside and if they are hard solid you have ice build up and the fan is hitting the walls or ice making the noise. Unplug your fridge for 2 days and let the ice in the walls melt. Put towels on floor to catch water. Plug it back in and it should run fine for a couple of weeks until the ice builds up again. You have a bad timer and it isn't letting the defrost cycle come on. Defrost cycle are heating elements that melt the ice build up and runs about 10 mins once a day or so. This will give you time to check if an afforable repair can be done or a replacement fridge.
If the freezer fails to defrost you get ice building up at the back of the freezer.
The defrost cycle relies in a thermistor transducer to detect the ice build up and to turn on the defrost cycle. The water usually then drips down to a tray under te fridge and then gets evaporated away.
Hopefully you only have a problem with the thermistor and not the defrost circuitry,
This is hard for a repair man to diagnose as when you call them out to your fridge it will be impossible to diagnose if the freezer is totally packed with ice.
And if you let it defrost totally it will be hard to diagnose as they may not be allowed to use freon to cool the transducer.'
So if you call someone in to check this you need to know if the ice build up will be a problem for them .
Youtube has several videos on this situation .
Sounds like you have a defrost Prob. Take back cover off. Turn defrost timer in to defrost mode you will feel a click. timer may be located in fridge. ceiling or back wall if not there check bottom of fridge. behind kick plate or in back bottom of fridge. by compressor. See if heating element gets hot if not check for 120 volts at heater and defrost thermostat ( Terminator ) if not check defrost timer if you do have 120 volts check for 120 volts at heater terminals if no voltage or weak voltage replace terminator if you do have good voltage replace heating element. When ice builds up the fridge. starts to get warm turn off for 24hrs turn back on fridge. will run OK till ice builds back up.