WATER HEATER CONTROL
TROUBLESHOOTING GUIDELINES
These guidelines should be used by a qualified Maytag Customer Service Center Agent. Call the Maytag Customer Service Center at
LED STATUS | PROBLEM |
| SOLUTION | ||
A | B C | An open earth ground circuit to the | 1. Check that the earth ground connection is | ||
ignition system. |
| properly connected. | |||
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| 2. | Check that the ground conductor on the | |
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| water heater is properly connected. | |
A | B C | Wiring error or a high resistance to | 1. | Check for proper connection of line | |
earth ground. |
| neutral and hot wires. | |||
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| 2. | Check that the water heater is securely | |
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| connected to earth ground. | |
A | B C | Pressure switch remained closed longer | 1. | Pressure switch wiring is incorrect. | |
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| than 5 seconds after the call for | 2. | Replace pressure switch. | |
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| heat began. |
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A | B C | Pressure switch remained open longer | 1. | Pressure switch wiring is incorrect. | |
than 5 seconds after the combustion | 2. | Pressure switch tubing not connected | |||
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| blower was energized. |
| correctly. | |
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| 3. | Air intake or exhaust obstructed. | |
A | B C | Error in the hot surface ignitor circuit. | 1. | Check that all wiring is correct and secure. | |
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| 2. | Replace hot surface ignitor. | |
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| System in lockout. | 1. | Gas supply is off or too low to operate. | |
A | B C |
| 2. | Hot surface ignitor not positioned | |
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| correctly. | |||
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| 3. | Low voltage to the water heater. | |
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| 4. | Electric polarity to unit is incorrect - test | |
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| and correct. | |
A | B C | Problem in the gas valve driver circuit. | 1. | Turn power to the water heater off for | |
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| 10 seconds and the back on. | |
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| 2. | Replace gas control valve. | |
A | B C | Problem with the internal circuit. | 1. | Turn power to the water heater off for | |
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| 10 seconds and then back on. | |
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| 2. | Replace gas control valve. | |
A | B C | Problem with the internal circuit. | 1. | Turn power to the water heater off for | |
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| 10 seconds and then back on. | |
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| 2. | Replace gas control valve. | |
A | B C | Flame signal sensed out of | 1. | Replace gas control valve. | |
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| proper sequence. |
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A | B C |
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| ECO activated. | 1. | Replace gas control valve. | |
A | B C | One of the temperature adjust | 1. | Press and release each of the buttons | |
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| buttons stuck closed. |
| once. | |
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| 2. | Replace gas control valve. | |
A | B C | Water temperature sensor is | 1. | Check that all wiring is correct and secure. | |
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| either open or short circuited. | 2. | Replace gas control valve. | |
A | B C | Unit shuts down and in lockout. | 1. | Clean and reinstall the air intake screen. | |
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| 2. | Clean and reinstall the lint screen on the | |
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| Blower assembly. | |
A | B C | Unit shuts down. | 1. | Check for correct wiring to FV sensor. | |
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| 2. | Check for open circuits to FV sensor. | |
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| 3. | Replace FV sensor. | |
A | B C | Unit shuts down and in lockout. | 1. | FV sensor detected presence of flammable vapors. | |
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| 2. | Contact Maytag Customer Service | |
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| to determine cause. |
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