To remove the front cover of a Creda CDF2S bathroom heater, first ensure the unit is turned off and disconnected from the power supply for safety. Locate and remove any screws or fasteners securing the front cover, often found at the bottom or sides of the unit. Once the screws are removed, gently pull the front cover away from the heater to access the internal components and reattach the pull cord. Be sure to resecure the cover properly before restoring power.