Question about Hotpoint 18.2 cu. ft. Top Freezer No-Frost Refrigerator CTX18DABWW
Freezer is icing up and obstructing flow of air to refrigerator section. I defrosted manually and it was good for a week ir so now back to the same problem. How do I tell what part is bad? Can I ohm out the heater coil? How can I test the defrost heater? Unit is a Hotpoint ctx21da
Heater coil can be checked with a continuity meter, just be sure to unplug the unit first. Before you do anything, locate the defrost timer which is under the control panel in the fridge at the top in the back. There is a little white plastic plug cover a small hole, remove that and you will see the manual advance device. You can only turn it one way due to its design, so using a flat bladed screwdriver that fits the device turn it slowly until you hear a click. then listen in the freezer for sizzling noises as the heater warms up. If you hear the noise you will need to replace the defrost timer, part is available on line. If it doesn't activate the timer then check the continuity on the heater element and the defrost thermostat. (You will have to cut the wires on the thermostat to accomplish this) and check it for continuity. The thermostat needs to be frozen to read properly otherwise it will appear to be open so leave it in a freezer for a bit then check it out. all the parts are available online, just google for refrigerator parts and look for your model.
Posted on May 20, 2009
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Posted on Jan 02, 2017
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So first thing you try is , perform,
manual defrost reset procedure.---------
The manual defrost
reset procedure is as follows : ----
First unplug the unit from main power outlet. Then empty whole unit completely. Then keep both the doors open. Wait for 24 hours. All the ice collected on the coils and in the freezer section will get melted. Clean the water from the sections. Then Connect the power cord of the unit to main power outlet after 24 hours/.Then set the temperature to normal in both fridge and freezer section. Then check,if same frost is getting collected, then its defrost problem,. If it's again building up ice that means the unit is not defrosting. It's starting the cooling procedure, and then while defrosting, it's not working. The defrost assembly consists of three main parts. The defrost thermostat, the defrost heater and defrost board. Any of the one is not functioning. When thermostat sense the maximum cooling, it triggers the defrost heater to start heating and this defrosts the ice collected on the coils and the system works. Both thermostat and heater are controlled by defrost board. First the thermostat and defrost heater to be checked, if both check ok by meter and visually, then its defrost board causing the problem. You can get required parts from from online sites like: --- www.repairclinic.com or from searspartsdirect online site. --------- This should help.Thanks.Helpmech.
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