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At the lowest settings for the fresh food side and freezer side the freezer was at -5 F and the fresh food side froze everything and caused a soda can to rupture and it was still running.
It sits in the attached garage near the back door to the house where it has been for 6 years and only rolled out and back to paint the wall behind it.
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Sounds like maybe a stuck or blocked damper. Check the damper and return air duct. Set the controls to the mid range. How often do you open the thing?
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Originally Posted by: magician59  Sounds like maybe a stuck or blocked damper. Check the damper and return air duct. Set the controls to the mid range. How often do you open the thing? I open it at least once daily most days. I checked the damper which is free and the duct which is open. The controls were in mid position where the had been for probably a year when the problem started.
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Normally I would suspect the defrost timer; but I coulcn't find on on your machine. You may have a faulty cold control (although these very rarely go bad. They're either open and won't close, or closed and won't open). Try giving the control knob a sharp rap and see if it affects the temperatures. Part number: AP4067399
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Originally Posted by: Charlie7 I open it at least once daily most days. I checked the damper which is free and the duct which is open. The controls were in mid position where the had been for probably a year when the problem started. It does have a defrost thermostat if that is the same thing?
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No. The defrost thermostat (also called the defrost terminator) is a thermostat that cuts the power to the defrost heater, when the temperature reaches a certain level, so that the heater will not overheat, and cause damage to the surrounding components.
The defrost timer is a clock-run switch that controls the compressor circuit, and, after a predetermined amount of cooling time, switches to the defrost circuit. These were replaced in the late '80s by adaptive defrost control circuit boards, in response to EPA's demand for "energy efficiency".
The cold control is a thermostat switch that, when the set temperature is reached, turns off the cooling system. It is equipped with a capillary tube filled with a gas that expands and contracts in response to ambient temperature, and affects a diaphragm in the control, which in turn controls electric contacts in the switch.
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Originally Posted by: magician59 No. The defrost thermostat (also called the defrost terminator) is a thermostat that cuts the power to the defrost heater, when the temperature reaches a certain level, so that the heater will not overheat, and cause damage to the surrounding components.
The defrost timer is a clock-run switch that controls the compressor circuit, and, after a predetermined amount of cooling time, switches to the defrost circuit. These were replaced in the late '80s by adaptive defrost control circuit boards, in response to EPA's demand for "energy efficiency".
The cold control is a thermostat switch that, when the set temperature is reached, turns off the cooling system. It is equipped with a capillary tube filled with a gas that expands and contracts in response to ambient temperature, and affects a diaphragm in the control, which in turn controls electric contacts in the switch. Magiician59, My Maytag unit seems to be showing the systoms you described as needing a replacement defroster thermostat as well. Could you please direct me to a site where I might find instructions to replace the df? Trying to save money on a service call. Of course my unit is just 15 days out of warranty...figures!
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