Hi,
From a draining issue to a heater issue,
what are the chances of that one,
does the machine abort the cycle and display the error,
or does it finish the cycle and dislpay the error at the end,
in both cases the heating element will have to be checked/metered.
A open circuit indicates a failure of the element,
you can check the element using a multimeter on the ohms or continuity setting.
Its also possible that the heater relay is stuck with a open gate, causing a open circuit.
Or the relays pcb has failed,
paul, February 2012