I can't remember and I dare not touch it anymore. No more than 5 if I recall. If it works, don't fix it!
I had replaced all the components in the shut off circuit and there were no changes until it got over 100F.
I guess I'll give myself till next summer to install AC. It only gets used maybe 3 months out of the year (AC that is) so there is no hurry.

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'70 F100 shortbed
'82 Diesel Westy
'83 Euro 300TD
Curtlo Viper
Yeti ARC
Surly long haul trucker