Defrost problem Inglis WPW10292244 refrigerator

[Yan]

Hello, the evaporator in my freezer is full of ice. I tested the defrost circuit with the maintenance mode of the control board (Jazz). It returned an open code (O). I tested the thermostat and it seem to be ok ( closed ). So I tried to do a forced defrost. The compressor stopped as specified and it seemed to be in defrost cycle , but the ice didnt melt. 

So I will need a little help to do some more testing . Can I test the defrost element with an ohmeter? Whats the value I should normally read in Ohm  ? Is there someting I can easely test on the board? Like reading voltage on some pins or Ohm reading of the defrost circuit at the board? 

Thanks in advance.

[evaappliance]

I don’t think this is a model number

[MrApplianceMatt]

You can check the heater from end to end for continuity with a meter if the meter is so equipped with that function. The correct model number will help us help you.

[Yan]

Ooopss. Sorry. Heres the real model number: ITB19440Q02

[Yan]

I want to corect the sibject, but no edit function to be found....

[Vance R]

The heater and bi-metal can be tested meter set to ohms.  Don't remember specific heater valve, 20 to 100 ohms should be ok for heater. Bi-metal should read zero ohms when it's temp is below 15 - 19 degrees fahrenheit.  The test you ran indicates open in defrost circuit. Most likely part failure is bi-metal, followed by heater and/or connections. Last would be wiring. Testing for voltage is kinda hard because with board sense open circuit it removes power.

[Yan]

Hello again guys, I’m now looking for the tech sheet for my refrigerator model. It seem to go by the part number W10476805 . But the only one I came by is 16023133. And I cant find the paper in the place its supposed to be when you purchase the refrigerator new. Someone can help me on this one? A pdf or image ? Thanks a lot. 

[Yan]

Or just tell me if the pinout on the 16023133 tech sheet is the same as mine. If so I will be able to probe at least from the ground up to the board and isolate the problem. Thanks.

 

[Yan]

Ok. I still didnt have any tech sheet but I’ve done some further test since I had to defrost manualy with a air dryer the evaporator. So before I stop the refrigerator I tested with the maintenance menu the thermostat circuit. The JAZZ board still returned me an O (open) circuit. I then probed it disconnected from the circuit and still frozen. The thermostat is ok. It read 0 ohm. So its closed. I probed the resistance of the heating element ( disconnected from the circuit) It read 33 ohm. So its not burn open or shorted if the resistance value is ok. So everything in this area looks fine. I tested the voltage at the two disconected terminals of the heating element and I mesured nothing. So I started a manual defrost in the maintenance menu of the Jazz board. It took again a voltage reading. Around 15v was present at the terminal. So I plugged the terminals back....nothing seem to happen. So I back proped the terminal and it read 0v. I disconnected the terminals, still in forced defrost mode, and now I read 14v. I reconnected the terminal and nothing 0v. So everything seem to point in the direction of a defective JAZZ board. What you guys think?

 

[Yan]

******Message to the moderators******  Could you please delete this post entirely. Also, I dont know why, but I'm unable to edit any message. No edit option appear on screen to do so. I tried with a tale and a computer and aways the same problem of no edit option.