Testing Procedures
!WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power and gas to oven before servicing, unless testing requires power and/or gas.
Component Testing
Illustration | Component | Test Procedure | Results | ||
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| Oven light housing | Disconnect connector and test | Verify bulb is properly installed. |
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| resistance of terminals | Indicates continuity with bulb installed. |
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| Measure voltage at oven light: | 120 VAC, refer to wiring diagram for |
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| terminal identification. If no voltage is |
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| present at light, check wiring/switches. |
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| Door plunger switch | Remove switch from unit and measure |
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| the following points: |
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| C NO | Plunger in continuity, Plunger out infinite. |
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| Autolatch assembly | Disconnect wires and test for | See wiring diagram for schematic layout. |
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| with switch | continuity per wiring diagram. | Access assembly by removing left side |
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| panel. |
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| Refer to Parts Manual for correct |
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| autolatch switch associated with the |
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| correct manufacturing number. |
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5 K btu |
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| 270° valve | Verify gas is supplied. |
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9.2 K btu |
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16 K btu |
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| Adjust set screw for simmer control. |
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12 K btu (Model |
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MGR6875AD*) |
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| Spark 270° switch | Test for voltage at terminals | 120 VAC |
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| Disconnect wiring and check for |
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| continuity in LITE position | Continuity in LITE position. |
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| Spark ignition | Test for resistance of spark lead | Continuity |
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| electrode |
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| Test ignitor to chassis | No continuity from ignitor to chassis. |
5 K btu |
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| Top surface burner | Verify gas is supplied | Check for obstructions in burner ports. |
9.2 K btu |
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16 K btu |
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| Verify burner cap is positioned |
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12 K btu (Model |
| correctly. |
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MGR6875AD*) |
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L | A | B | Spark module 4 + 0 | Test for voltage at terminals L and N ... | 120 VAC |
N |
| A1 B1 |
| Check polarity and ground | See wiring diagram |
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| Temperature sensor | Measure resistances | Approximately 1100 Ω at room |
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| temperature 75°F. |
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| Bake burner | Verify gas is supplied. | Set for Natural Gas from the factory |
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| Orifice adjusted for Natural or LP | Adjust as necessary. |
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| Check for obstructions or |
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| contamination in ports | Replace if punctured or torn. |
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| Broil burner | Verify gas is supplied. | Set for Natural Gas from the factory |
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| Orifice adjusted for Natural or LP | Adjust as necessary. |
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| Check for obstructions or |
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| contamination in ports | Replace if punctured or torn. |
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| Ignitor | Test for voltage at terminals | 120 VAC |
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| Test for the amount of amperage in the |
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| circuit | 3.2 − 3.6 Amps If not replace. |
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| (Ignitor may glow but not have |
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| sufficient amperage to open valve). |
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©2004 Maytag Services | 16023415 | 17 |
