List of Error Codes for the RS2 Dual Band
E1 - Window Unit not receiving signal from cell tower.
E3 - Coverage Unit is overheating.
E4 - Window Unit is overheating.
E6 - Location Locking.
E7 - Unit Disabled by mobile network operator.
E8 - Input signal too strong.
Too Close - Unit too close to operate.
Too Far - Units too far apart to operate.