First thing to do is check for ice build up on the coils and make sure there is air flow in the unit. If there is any ice build up, then try defrosting and cleaning the coils, make sure any dust build up is also cleaned off. If that doesn't help, a new thermostat may be needed. Let me know if you need anything else.
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First thing to do is check for ice build up on the coils and make sure there is air flow in the unit. If there is any ice build up, then try defrosting and cleaning the coils, make sure any dust build up is also cleaned off. If that doesn't help, a new thermostat may be needed. Let me know if you need anything else.
Benjamin