Here are the symptoms - driving along with a/c on and the blower and a/c would just quit and start emitting hot air with the red LED light blinking in the Recirculation Switch! (I just ordered a new ovp relay just in case.) It has done this several times and I would pull over and shut down the engine for a few minutes and every thing returned to normal. Weird Hey! Could this be another relay that is going bad and I am missing?

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Gerry

59 Ranchero
83 928 Euro S
84 928 Euro S
87 300D Turbo-Frybrid "WVO, Tastes Great - Less Filling"
90 750 IL
91 560 SEL