20
008082013GW
E 01
Remove all 24 volt connectors, such as: fan, pump, any three port valve and the 24 volt plug to the connecting
block. Check for a short circuit in the disconnected components. Next; switch on power to the control board with all
the 24 volt components disconnected. Reconnect the components one at a time, if code E 01 appears when you
plug up a component, that component has a short circuit. Rectify any short circuits or replace defective component
causing short circuit.
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