2004 Trinitron error code

[TUD1]

My 2004 KV-24FV300 did something weird this morning. I went to turn it on with the remote, and instead of hearing the usual relay click, degaussing, then high voltage, I only heard a relay click. Then, the red LED started flashing four times. I tried again, and it worked fine, but the light would flash four times when it was off. I unplugged it for a minute and it has acted normal since. Should I expect a failure pretty soon?

[zeno]

I dont remember the codes but PC cons under the vert were
common on them. It will HVSD for no vert sweep

73 Zeno
LFOD !