I forgot I have access to Mitchel repair CD's and I printed out what I needed. I found the left actuator motor and took it out. It would spin both directions when I moved it from hot to cold. I then reached up and moved mixer valve and it moved. Noticed that it was spring loaded and would default to 'cold' (I think) setting when released. Did a WTH for a few seconds and put it all back together and now it works
OBTW those screws for actuator are 5.5mm. DidnÃ¢â‚¬â„¢t know metric came in 1/2 sizes when they get that small
Mine did the same thing for awhile, then one morning I turned it on before leaving my house to let it warm up while it was cold outside and just had closed the driver side vents, when I came back I felt warmth and opened them and it was blowing heat. Worked ever since.
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