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1. I will need complete model on indoor and outdoor units and thermostat to be able to take a look at wiring.
2. If thermostat has 2 terminals for backup heat we need wires connected to both.If not we need a wire from the aux to all elements. Wire from outdoor should also connect to all elements.
Glad you were able to get this fixed Rainer.The majority of the issues you mentioned referred to the heating elements and sequencer which are in the the indoor unit, rater than the outdoor is why I wanted complete model on indoor.The AV was not sufficient to pull a manual on air handler.Sounds like the W1 and W2 had not been connected as I mentioned they had to be "If thermostat has 2 terminals for backup heat we need wires connected to both.If not we need a wire from the aux to all elements. Wire from outdoor should also connect to all elements." I am sure we would have figured this out together.
Glad you got it working though. As long as you do not rate answer and close the question I can request a refund if you would like.
I understand. I will post a rating button .If you are happy with paying what you agreed to leave rating of three or higher and we are done unless you need me further which will allow 30 days of follow up. Until I request a refund or you rate, the question will just stay on the board as unresolved.Leaving a poor service rating will not automatically refund your money,but reflects poorly on your expert. You have to request a refund if not satisfied