Question about Whirlpool Refrigerators
Two possible problems.
1. The fan motor located behind the freezer back panel is not running.
If you open the door, while the machine is running, you should hear it.
If not, remove the rear panel. If the motor is not being blocked,
replace. It's a little awkward, since it is clipped in place, but with a little patience, can be done.
2. The defrost system has failed. If when inspecting the rear panel, you see frost building up on it, that is your problem.
There are three parts to the defrost system
One. The main heater, which is located behind the rear freezer panel, and runs underneath the evaporator coil, and part way up the sides.
Two. The defrost thermostat, which is located on the top of the evaporator, and is a small round disk clipped to the evaporator coil, and has two wires leading from it to a plug.
Three. The timer, which is located in the fresh food compartment, under the roof near the front of the compartment.
To repair, unplug the machine, remove the rear panel in the freezer. Unplug the wires to the heater and check the heater for continuity. It should read very low resistance. Below 35 ohms. If it reads infinity, replace.
If the heater checks O.K. on this model, I recommend replacing both the limit thermostat and the timer, since both have a high failure rate, and the cost is within reason.
Parts may be purchased at any appliance parts house that carries Whirlpool parts.
Below is an excellent pictorial view of defrost system components. Unfortunately, the hyperlink to it may not work, and you will have to copy and paste it into your browsers address bar.
Posted on Dec 10, 2009
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Posted on Jan 02, 2017
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