The union said it is giving energy minister John Seneviratne one week to respond, before taking tougher action.
Ceylon Electricity Board's current chairman, Udayasiri Kariyawasam, has been at loggerheads with the Engineers Union since his appointment.
An accountant by profession, Kariyawasam had proposed several measures to trim the power of engineers in the utility, especially at board level.
He has also publicly spoken out against the engineers union.
Though various technical grade electricity workers threaten strikes from time to time and actually down tools, only the engineers have the clout to disrupt supply to the island.
The engineers rarely strike, and last went on a full blown strike more than a decade ago bringing the entire country to a standstill, over the proposed privatization of a distribution unit.
In the past