[Doug Musick]

Tapped on the control valves and pulled then reseated the relays.  All Zones have been putting out heat for two days now.

Not sure how old the antifreeze is but the color is definitely not what it should be.  I will be draining and flushing the system when the weather warms up enough for me to go most of a day w/o heat.

Glad the fix seems to have been something simple.

Thanks for the link Tom.  I got the 6 pack rebuild kits today.