Brand:kenmore Model Number 253.70413415 Main Symptom: not cooling What happens & when:
Error Code (if any):
Parts or tests already tried:
Photos / video link:
have a kenmore refrigerator 253.70413415 it started getting warm in the fresh compartment. Freezer works fine. It was high 40s low 50s. I noticed low airflow. No ice build up. I have replace the defrost thermostat and the door that allows air from the freezer with no improvement. The fan does run but no real air flow. Removed the rear air channel a found no blockage.
Checked the thermistor on ohms and it read 11.0 at room temp. In ice water it would read 19 but only for a second. Then went to no continuity. Checked it several times and would only read for a second. I need help.
When the air tower was removed to inspect air flow, was there any thing blocking the return vents to the sides? If you access the evaporator section, are the return vents clear of ice? Also, does the refrigerator run the fans and compressor continuously, or does it stop as if it thinks it has reached proper temperature?
I have it empty. No blockage. Couldn’t say if it runs all the time. Freezer is cold. Fan is not working now. Unsure why thermistor would only show 19 for a second at 32 degrees
I am still here. Did the thermistor show 19 Ohms or 19K Ohms? The holes on the sides are the return vents used to circulate the air back into the freezer.
Sure it was how I set the meter. I am not good with this thing. I know it supposed to be 11000 at room temp and it was but I had it set to 20k I think.
So I assume it was really reading 11.0 because I set it wrong. But it never got past 19.0 instead of the 26000 it should read. And it only lasted a second and repeat after removing a probe and checking again. Only for a second.
If you have a setting higher than 20K, it would need to be set to that. More than likely, the thermistor will get a higher reading. However, if the thermistor still reads only 19 when the meter is set past the 20K setting, it would indicate a thermistor failure as well as something else happening. Let me know what you find with the meter set on a higher setting and we can go from there.
Is strange that the damper was open before I removed it. And I replaced the thermistor as soon as I took it out of the water. Also the fan isn’t working at all now.
If we assume the glass of ice water had a temperature of 32-36 degrees, the resistance at the colder temperature should be well within tolerance. If you have everything plugged back together and the power cord plugged in, does the fan motor kick on with the door open if you have the door switch activated? From the way this appliance is behaving compared to the testing results so far, it is seeming like this might be a main control failure.
The fan dosent come on at all that I can tell. Not with it open. Not sure where the switch is. But after being closed for hours the temp stays at 62. So I’m assuming the fan dosent come on at all
On the bottom of the fresh food doors, there should be a magnet near the hinge area. You can use a separate magnet and place it on the cabinet where those door magnets normally line up.
This will simulate the doors being closed and allow you to check a few things:
Whether the damper stays open
Whether the fan runs when the fresh food section is warm
Whether the main control is responding correctly
Since the freezer is reaching proper temperature, the evaporator fan is working, so this test helps confirm whether the issue is with the main control not directing airflow properly. If the system doesn’t respond as expected during this test, it would strongly point to the main control being the cause of the failure. 5304504032 Refrigerator Main Power Control Board | Genuine Frigidaire OEM In Stock
Ok so like I said the evaporator fan to the freezer stopped working. So I ordered a fan and a thermister. Fan arrived today. When I replaced it the coil was frozen. Fan wasn’t blocked in any way. Just wasn’t running. I replaced the fan. As soon as I plugged it in and pushed in the freezer door the fan started up. Now the thermistor hasn’t arrived yet. And because I’m running out of time. I also ordered a control board today. Before the fan got here. So we will see.
