E0: Lost communication between indoor and outdoor units

What to do

1. 1If this appears at initial startup, check for miswiring, or a broken or disconnected cable #1 (the leftmost of 3; it may be labelled differently).
2. 2Note the code, switch the unit off at the breaker for a few minutes, then switch it back on. If the code returns, call support with the code and your model number.