BAYweb BW-WT2 Owner's Manual page 26

Problem
Heat does not function.
Cool does not function.
Solution
✔ Verify that Heat mode is selected on
the Thermostat Keypad.
✔ Verify that the set point is higher than
the current temperature.
✔ Verify on the Control Module that the
Heat light is ON.
✔ Check the red and white wires between
the Furnace/AC connector on the
Control Module and your Furnace/AC.
✔ Check that the Furnace/AC has power.
✔ Verify that the outside temperature is
greater than 40º F.
✔ Verify that Cool mode is selected on
the Thermostat Keypad.
✔ Verify that the set point is lower than
the current temperature.
✔ Verify on the Control Module that the
Cool light is ON.
✔ Check the red and yellow wires
between the Furnace/AC connector on
the Control Module and your
Furnace/AC.
✔ Confirm that the jumper wire between
"Rh" and "Rc", or a wire is attached to
terminal "Rc" on the Furnace/AC
connector.
✔ Check that the Furnace/AC has power.
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