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 Posted: Wed Feb 20th, 2008 09:39 pm
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Joined: Sun Oct 7th, 2007
Location: South Carolina USA
Posts: 6784
That does not mean that your defrost thermostat is bad. That test just shows you the state that the thermostat is in at the time. If you have a frosted ofver evaporator coil the the defrost thermostat should be closed (shorted) haven't found your problem yet. You need to remove that back wall and comfirm that you have a true defrost problem. If you remove the back wall and the evaporator is not frosted over then your most likely gonna have a bad evaporator fan motor. Usuall on these models the evap. fan will run but not at the correct speed so it will simulate a defrost problem.....keep us posted.

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