Pool and Spa
Questions about Pool Repair? Ask an Expert Online.
OK so it sounds like you may have a clog in the pump one impeller, you need to remove the pump and take the front face plate off the pump to access the impeller and check the veins for clogs. If the pump is not clogged then it may be a bad low speed on the pump and you would need to either have motor rebuilt or replace with a new pump. The Dry code is dry fire in heater meaning there is not enough water flow through the heater and the sensors are picking up a quick and high heat increase inside the heater housing and it then throws a Dry code.