E01 is low system voltage. This can be caused by 3 things. Either the incoming power is incorrect, the heater is connected to wrong voltage, or the tranformer is not outputting the correct voltage.
Check voltages going into the heater, if these are all correct, then replace the transformer
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E01 is low system voltage. This can be caused by 3 things. Either the incoming power is incorrect, the heater is connected to wrong voltage, or the tranformer is not outputting the correct voltage.
Check voltages going into the heater, if these are all correct, then replace the transformer