Just in case you lost your directions I took the liberty to post them below
http://customer.honeywell.com/techli...0s/69-1800.pdf
All the wires are listed in the directions so I would read them to make sure you wired the thermostat correctly.
The only wire no listed is the C but it is only for the old clock transformer that you do not need to use with the new stat.
There is a toll free phone number in the instructions on the lower right side at the bottom. call honeywell they will have your answer.
NOTE: There are a few setting that you will have to do. They are also described in the instructions.
HINT: RH and RC since you really only have a 4 wire system to start with you need to reconnect them.
BTW here is the old thermostat wiring so you can compare wiring.
http://customer.honeywell.com/techli...0s/69-0564.pdf