replacement not changing over - http://www.hvacmechanic.com/ Forums
Original message
want4onlyone
"replacement not changing over"
, posted Sat 18 Oct 08:38
I have replaced a rheem 41-20804-15 thermostat with a honeywell rth7400.The package says it is a rth7400 but the manuals are for a rth7000 and I dont know if that makes a diffrents or not. Any way I wiried up the unit as Houston204 had done but when I go to program it the auto change over will not work. Also when I went to program the unit it would not show 240 to program.It did do 170 to 7 and 190 to 1 but not the 240 to 9. Please help. I would like it to do both heat and cool with out me having to change it over manually.
"replacement not changing over" 
