no heat on cvr 2008

is the fan coming on, if the fan is on, check to see if the thermostat is opening, it may not. If it is then you may want to check your blend door under the dash board..

To check the thermostat is opening . When the engine is cold the top radiator hose and heater core hoses to the firewall that connect to the heater core will be cold.and easy to squeeze by hand ( not stiff or hot ). as the engine warms up to normal operating temperature the fan will come on ( leave ac turned off ) and the hose should be stiffer and hotter meaning thermostat is opening and coolant is passing through the system.

if the thermostat is okay I agree with for and a problem is with the blend door . This could be vacuum, electrical or mechanical problem