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Hi, I think Your model number is HSS25IFMDCC . There is no defrost timer on your refrigerator, main relay board controls defrost cycles in this fridge. main board p/n WR55X10942 But I suggest to check on heater and defrost switch first - more common problem on this refrigerators. here is my video. hope it helps.
You have a problem with your defrost system. The defrost heater is not coming on to thaw the frost that builds up on your evaporator coils. This restricts the airflow to the ref side. You will need to find out which component needs to be replaced it could be your defrost control, defrost thermostat, or defrost heater. The heater and thermostat are located behind the freezer panel. The heater can be ohmed out with a meter and tested for continuity, the thermostat will usually be popped out if its bad. If both of these parts are good then the problem is your defrost control, my model look-up is down right now but it could be a circuit board or just a standard "timer" style control.
If your model has a defrost timer there are only two places I know that they are placed. Behind the control panel inside the fresh food compartment or behind the kick plate at bottom of refrigerator. If you send me the model number of your Hotpoint I may be able to tell you exactly what you have. Some models have something called an Adaptive Defrost Control. And when defrost stops it is not always the defrost control causing the problem. So a model number found around your door frame or inside would be very helpful in locating the correct parts for your refrigerator now and in the future, Thanks, Sea Breeze
you might have a defrost problem. Frost free models have a heating element that is controlled by a timer to automatically defrost ice, ie defrost timer turns on defrost heating element every 12 hours to melt ice in freezer and allow good air flow. You can test defrost element with an ohm meter(located inside freezer coils-will have two wires going to a plug connection), if OK replace defrost timer (located in various places depending on make and model
If freezer is icing up, you might have a defrost problem. Frost free models have a heating element that is controlled by a timer to automatically defrost ice, defrost timer turns on defrost heating element every 12 hours to melt ice in freezer and allow good air flow. You can test defrost element with an ohm meter(located inside freezer coils-will have two wires going to a plug connection), if OK replace defrost timer (located in various places depending on make and model
The fridge gets its cold air from the freezer through a vent(damper)
between the freezer and fridge.The fan in the freezer blows air through
it.There is a flap you adjust with the
fridge temp. control. Make sure it's opening and closing when you adjust the
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
cold air and eventually affect the freezer too.
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.