Flashing Left Turn Signals

[MASTERNC]

I had been under the impression that PennDOT does not permit left turn signals to flash when signals are in flash mode (i.e. the thru signals flash but the turn signals do not).  However, a light that had been out of service today after Hurricane Irene was hooked up to a generator and went into flash mode.  The thru signals on the main road flashed yellow but the left turn signals were actually flashing red.  Was I wrong about PennDOT's policy or is it possible it has changed recently?

[Ace10]

Just curious, but what would the left turn signals do in this situation, according to PennDOT? Out of all the signals I've seen that are "permanently" set to flash mode, if there is a left turn signal on a direction with flashing yellow thru lanes, the arrow is flashing red (requiring a stop). These are in Florida, by the way.

[MASTERNC]

Just curious, but what would the left turn signals do in this situation, according to PennDOT? Out of all the signals I've seen that are "permanently" set to flash mode, if there is a left turn signal on a direction with flashing yellow thru lanes, the arrow is flashing red (requiring a stop). These are in Florida, by the way.

In the past, the left turn signals were blank (no lights flashed).

[PAHighways]

I could not find anything about the protocol for flashing turn signals having been changed.  The last installation I saw with turn signals that was in flash mode, the turn signal was out.

Sometimes, one signal installation will just be wired differently than others and permit things like this to happen.