I have a 330a two stop that has been off for about a month. It Was running fine previously. Went into the machine room to do an annual test and foud no screen reed out ; found the 24v logic voltage supply was no good and changed. Now I have a reed out of "BLOCK READY 0=01 1ii unv". Attemted to reset many times to no avail. Can not even run on inspection. Does any one know what could be wrong? Much appreciated.