There are currently no reported issues in your areas although there is a bit of UHF transmission maintenance yesterday and will be on the 1st June, but only affecting Nelson, Hamilton and Whangarei.
Are you able to perform a channel rescan?
Terri-Anne Parkes said:
I am in Hamilton and have had no signal since yesterday lunch time. Dont know if its due to the maintenance or what. It was working fine Saturday morning.