I had an alarm 144 on my TM-1 yesterday. Machine paid in full on purchase and the local HFO gave me a serial no. to overwrite the one listed at setting 26. My control will not let me overwrite it. The service tech said to page down to setting 26 and type in new number and hit enter but my control will not change the existing number. Does anyone know what I am doing wrong? I can call the HFO in the morning but I thought I might cast a line tonight and see what might bite!! I guess I have little patiience...LOL. Thanks in advance,
R Ardoin