Marcus March 21, 2012 for Model Number MSD2651HEQ Have 5 yr old fridge. 3 months ago the coil iced up and the fresh food side got warm. I unplugged for 2 days - turned back on and it was ok again. 2 days ago the coil iced up again. I was in process of cking ohm resistances when the fan and comp shut down and the heater heated up, defrosting the coil. So I am assuming that the heater, thermostat are ok. But why does the coil occasionally ice up and cause fresh side to get warm? Intermittent signal from circuit board?
1 Answer Hello Marcus. Based on the information you provided, it sounds like the defrost control board W11227239 is bad and will need to be replaced. Hope this helps. Read More...
Marcus March 21, 2012 for Model Number MSD2651HEQ In last 3 months My freezer coil iced up 3 times. 1st time I thawed it 2 days and it was ok after that. It happened again and I was in process of checking continuity when the fan shut down and the unit went into defrost mode. The heater kicked in and it defrosted. Seems to me that all 3 "normal" parts of the defrost system should be ok. Why, then does the coil occassionally ice up - causing the fridge to get too warm? Could it be that the ADC is intermittent? Or maybe the "tight" space the fridge fits into is a problem? Fridge is only 5 yrs old.
1 Answer Hi Marcus. In my professional opinion is that 90% of the defrost issues stem from the adaptive defrost control board part # W11227239 sending intermittent voltage (Bad defrost relay on the board) And the defrost thermostat part # not closing. I would use a volt/ohm meter part # MA-DM1 to assist. you in your diagnosis. Use the supplied wiring diagram to follow that you will find folded in the controls or in the toe kick grill below. Thank You. Read More...
Jon November 23, 2011 for Model Number MSD2651HES I have a maytag side by side fridge that doesn't hold the freezing cycle: @ 0 hour - compressor kicks in and runs. @ 1 hour - compressor runs, evap fan runs, frost on evap. @ 3 hour - compressor runs, evap fan runs, evap is warm. @ 5 hour - SAAB I changed the defrost thermostat, the ADC and the same behavior and it does not maintain freezing point 0 celcius? I checked the harness of cables and the circuit is closed. Could it be the defrost bar? During running, I lower cold control
1 Answer Jon, With a new ADC board, thermostat, and the run times you listed, I would not suspect you to have a defrost issue. It sounds more like a sealed system issue, probably a restriction in the system. Make sure there is an even coat of frost across the complete evaporator assembly at the 3 to 5 hour run time. Good Luck and Thanks Read More...
Roberto September 05, 2011 for Model Number GX5SHDXVQ01 My refrigerator is only 13 month old. The back wall of the freezer is building up ice and the upper part of the refrigerator stop cooling. I removed the back wall and found complete ice buildup. I thought the fan that routs the cool air up from the freezer was defective but is not so. After doing a bit of research, it can be one of the next components: the defrost thermostat part # AP4009169, defrost heater PART # AP4078434 or the ADC(control unit)part# AP4366538. Please advice.
1 Answer Hello Roberto. You will need to test the heater WP67004188 and the thermostat 12002355. They should read closed for continuity when cold. If they are good, you will need to replace the ADC WPW10503278. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. Hope this helps. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html Read More...