Heater not working on 2003 Honda Element

the radiator is full but the heater is not working

by in Kiel, WI on September 08, 2010
2 answers
ANSWER by , December 30, 2010
Check the heater core. Not an easy replacement.
ANSWER by , April 19, 2011
The thermostat maybe stuck open just enough that the coolant doesn't get a chance to warm up to operating temp. of approximately 185 degrees. Typically the simplest thing is the cause.