Samsung MW7592W Service Manual - Page 17

6-3 Gas Sensor Troubleshooting AUTO COOK (SENSOR ONLY) The Auto Cook function uses a special gas sensor which detects both humidity (steam) and hydrocarbons (food odors) during the cooking process. The sensor is a plug-in device located on the left side of the cavity at the cavity exhaust. AUTO COOK TEST (SENSOR ONLY) 1. Place 1/3 cup tap water in oven. 2. Touch POPCORN 3. After 1-2 mins: Control Beeps & Display counts down. 4. Touch CLEAR OFF. A) Test OK-Normal B) Test Fails-Check Sensor (See Sensor Test) RETAINER HEATER LEADS SENSOR RECEPTACLE SENSOR LEADS TUBING DOOR SENSOR TEST(QUICK TEST) (SENSOR ONLY) 1. With 2-fingers touch and hold the following pads at the same time : 7 and 8 2. Observe diagnostic number in display(numbers approximate) * 15-185(Normal-verify with "detection test") * 185 or Higher(sensor failed open. sensor unplugged, wiring, or smart board) * Less than 15 (shorted sensor, or smart board) NOTE : Only heater terminals (H) can be checked with ohmmeter (30½) CAUTION : DO NOT ATTEMPT TO CHECK SENSOR TERMINALS(CAN DAMAGE SENSOR). 6-4 Error Codes ERROR INDICATION CAUSE OF OCCURRENCE MANAGEMENT METHOD E4 Gas sensor open (sensor value between 6 and 211) Check the connection and cooking reheating. E5 Gas sensor short. Put the power switch again and use it after 10 minutes. E1 Exceeds of T1 time limit (Gas sensor) First press the cancel key and check the food londition. Samsung Electronics 6-3