Maytag MEDB835DC W10240504 - Page 17

FOR SERVICE TECHNICIAN'S USE ONLY NOTE: On the gas dryer, the inlet thermistor is located at the drum inlet vent. Refer to strip circuit on page 24 to diagnose heater system. Thermal High Limit Thermostat Cut-Off Dryer does not heat: Locate the components using figures 10a and 10b. To access heater system components, remove the console, top panel, and front panel. Flame Sensor ELECTRIC DRYER ONLY: 3 Quick Check: Perform steps under "Service Test Mode", page 6, to test for L1 and L2 line voltage. • If L1 is present, the heater relay is receiving L1 line voltage. • If L2 is present, the heater relay is receiving L2 line voltage, confirming that the centrifugal switch, heater, high limit thermostat, and thermal cut-off are functional. 1. Unplug dryer or disconnect power. 2. Slide the top back, remove the front panel, front bulkhead, and drum to access thermal components. High Limit Thermostat Assembly Thermal Cut-Off Heater Element Thermal Fuse Outlet Thermistor Thermal Fuse Outlet Thermistor Gas Dryer Figure 10b - Thermal components, gas dryer, viewed from front. 3. Check Heater-using an ohmmeter and referring to the strip circuit (page 24) or wiring diagram (page 25), measure the resistance from the red wire terminal at the thermal cut-off to the red-white wire at the high limit thermostat.  If the resistance is ≤ 50 Ω, go to step 5.  If an open circuit is detected, go to step 4. 4. Visually check the wire connections to the thermal cut-off, high limit thermostat, and heater. If the connections look good, check for continuity across each of these components. Refer to strip circuit on page 24 and perform TEST #4c: Thermal Cut-Off, page 20.  Replace the heater if it is electrically open.  Replace both the thermal cut-off and the high limit thermostat if either the thermal cut-off or the high limit thermostat is electrically open. Electric Dryer Figure 10a - Thermal components, electric dryer, viewed from front. DO NOT REMOVE OR DESTROY PAGE 17