...LP. What does this mean and what can I do? Low pressure is usually a dirty filter ob basket. If you have a by-pass on the plumbing you can shut this down a little to get more flow through the heater. ...
LP display can mean a number of things: outside temp too cold; loss of refrigerant; switch failure; fan motor failure; coil obstruction; air flow obstruction. I'm going to check the switch tomorrow. I
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