Low coolant level, or a plugged heater core.
Check that the pollen filter has been replaced. Check that the heater fan hasn't seized due to water logging after pollen filter becomes blocked. Check resistor is working (next to heater fan on firewall) Check relay is working correctly.
no probably have a stopped up heater core or air in coolant system also temp should get to around 190 at least also check that engine fan isn't running all the time
where does the engine block heater go in my 2007 ford focus
Check your fuses.
The most probabale cause for this sympstom is the blower motor , blower motor relay, or a fuse.
From your description of the symptoms it sounds as if the water pump has failed. No water pump equals: no coolant water circulatiing in the engine to keep it cool as well as no water circulating through the interior heater.
nearside sidelights not working on ford focus
The entire dash assembly must be removed to gain access to the heater core.
A broken fan heater can not work and A FORD Foucs does not run
You have to take half the car apart to replace the heater core
The engine block heater cord, on a Ford Focus, is located just below the front grill. The cord will extend out approximately 6 feet.
It depends on what you did to the car.