WATER HEATER CONTROL
10
WARNING: DO NOT
OPERATE ONLY AS WIRED FROM FACTORY.
TROUBLESHOOTING
Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician.
Read the GENERAL SAFETY INFORMATION section first.
LED STATUS | PROBLEM |
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| An open earth ground circuit to the | 1. | Check that the earth ground connection is | |
B | C | D | E | F | 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. | |
B | C | D | E | F | 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. | |
B C | D | E | F | Pressure switch remained closed longer | 1. | Pressure switch wiring is incorrect. | ||
than 5 seconds after the call for | 2. | Replace pressure switch. | ||||||
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| heat began. |
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| Pressure switch remained open longer | 1. | Pressure switch wiring is incorrect. | |
B | C | D | E | F | 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. | |
B | C | D | E | F | 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. | |
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| 2. | Hot surface ignitor not positioned | |
B | C | D | E | F |
| 3. | correctly. | |
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| Low voltage to the water heater. | ||
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| 4. | Electric polarity to unit is incorrect - test | |
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| and correct. | |
B | C | D | E | F | 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. | |
B | C | D | E | F | 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. | |
B | C | D | E | F | 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. | |
B | C | D | E | F | Flame signal sensed out of | 1. | Replace gas control valve. | |
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| proper sequence. |
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B | C | D | E | F | ECO activated. | 1. | Lower water temperature to below 120°F | |
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| and 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. | |
B | C | D | E | F | One of the temperature adjust | 1. | Press and release each of the buttons once. | |
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| buttons stuck closed. | 2. | Replace gas control valve. | |
B | C | D | E | F | 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. | |
18