Taco Variable Speed Circ problem

Wayco Wayne_2

I was reading a thread here on the Wall last week that mentioned a problem with the Taco 008 variable speed circs. Hmmmm, I thought. I've got one out there and had no problems. May be it missed me. Well that's all it took. I done gone and jinxed myself. I've started having intermittent problems with that system and it's not funny. Can somone bring me up to speed in 37 words or less? Ah go on. Take 50 words if you must. Thanks for any help you can give ASAP. WW