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Betsi Cadwaladr said a shortage of staff led to the closure of the ward two years ago, but it was expected to reopen.
Health board chair Dyfed Edwards said a major campaign to recruit locally, nationally and internationally had not succeeded.
Mr Edwards highlighted new community scheme Tuag Adref which ensures care at home and the minor injuries unit at the hospital which was open five days a week.
He said Betsi Cadwaladr had no intention to close the ward completely and that the board would be discussing the way forward for health services in the area in May.