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FOU - Outdoor Sensor Failure

PostPosted: Thu May 24, 2012 11:48 pm
by HTP
Fault Code FOU - Outdoor Sensor Failure

This indicates that the outdoor sensor is defective, shorted or open, or the outdoor temperature is below -40F. NOTE: The installer must connect the sensor and configure the outdoor heating curve to enable this feature. The unit will continue to operate when this error is displayed but the control will ignore the outdoor reset feature and run at the programmed temperature.