PANASONIC MICROWAVE AND BROWNER MODEL NO NN-K657WBBPQ SERIAL NO UN7040721 VOLTAGE 1310 WATTS NEED MANUFACTERS OPERATING MANUAL FOR THIS MODEL GRILL IS OPERATIONAL AT PRESENT BUT NOT HEATING WHEN ON A 3 MINUTE SETTING TO HEAT A CUP OF WATER WATER IS COLD CUP WARM OUTSIDE THE CUP NOT SURE WETHER THEIR IS A OPERATIONAL MALFUCTION BETWEEN THE CHANGE OVER FROM GRILL TO ORDINARY OVEN CAN YOU ADVISE OR FIND A MANUAL TO HELP MY SOLUTION BE VERY GRATEFUL maryvallely21@yahoo.co.uk