Troubleshooting (cont’d)
SYSTEMS CHECK
Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician.
WARNING
DO NOT
| LED STATUS |
| PROBLEM |
| SOLUTION | |
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| An open earth ground circuit to the | 1. | Check that the earth ground connection is |
| ▼ A | B | C | 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. |
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| ▼ A | B | C | Wiring error or a high resistance to | 1. | Check for proper connection of line neutral |
| earth ground. |
| and hot wires. | |||
| ● ● ● ● ● ● |
| 2. | Check that the water heater is securely | ||
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| connected to earth ground. |
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| ▼ A | B | C | Pressure switch remained closed longer | 1. | Pressure switch wiring is incorrect. |
| than 5 seconds after the call for heat | 2. | Replace pressure switch. | |||
| ● ● ● ● ● ● | |||||
| began. |
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| ▼ A | B | C | Pressure switch remained opened longer | 1. | Pressure switch wiring is incorrect. |
| than 5 seconds after the combustion | 2. | Pressure switch tubing not connected | |||
| ● ● ● ● ● ● | blower was energized. |
| correctly. | ||
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| 3. | Air intake or exhaust obstructed. |
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| ▼ 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 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. |
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| ▼ 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 then back on. | |||
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| 2. | Replace gas control valve. | |||
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| ▼ 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. | |||
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| ▼ 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. | |||
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| ▼ A | B | C | Flame signal sensed out of proper | 1. | Replace gas control valve. |
| ● ● ● ● ● ● | sequence. |
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| ▼ A | B | C | ECO activated. | 1. | Replace gas control valve. |
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| ▼ A | B | C | One of the temperature adjust buttons | 1. | Press and release each of the buttons once. |
| ● ● ● ● ● ● | stuck closed. | 2. | Replace gas control valve. | ||
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| ▼ A | B | C | Water temperature sensor is either | 1. | Check that all wiring is correct and secure. |
| ● ● ● ● ● ● | open or short circuited. | 2. | Replace gas control valve. | ||
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