TROUBLESHOOTING
LED STATUS | PROBLEM |
| SOLUTION |
| An open earth ground circuit to the ignition | 1. | Check that the earth ground connection is |
| system. |
| properly connected. |
|
| 2. | Check that the earth ground conductor on the |
|
| water heater is properly connected. | |
| Wiring error or a high resistance to earth | 1. | Check for proper connection of line neutral and |
| ground. |
| hot wires. |
|
| 2. | Check that the water heater is securely |
|
|
| connected to earth ground. |
| Pressure switch remained closed longer than 5 | 1. | Pressure switch wiring is incorrect. |
| seconds after the call for heat began. | 2. | Replace pressure switch. |
| Pressure switch remained open longer than | 1. | Pressure switch wiring is incorrect. |
| 5 seconds after the combustion blower was | 2. | Pressure Switch tubing is not connected correctly. |
| energized. | 3. Air intake or exhaust obstructed. | |
| Error in the hot surface igniter circuit. | 1. | Check that all wiring is correct and secure. |
|
| 2. | Replace hot surface igniter. |
| System in lockout. | 1. | Gas supply is off or too low to operate. |
|
| 2 | Hot surface igniter not positioned correctly. |
|
| 3. | Low voltage to the water heater. |
|
| 4. | Electric polarity to unit is incorrect - test and cor- |
|
| rect. | |
| Problem in the gas valve driver circuit. | 1. Turn power to the water heater off for 10 seconds | |
|
|
| and then back on. |
|
| 2. | Replace gas control valve. |
| Problem with the internal circuit. | 1. Turn power to the water heater off for 10 seconds | |
|
|
| and then back on. |
|
| 2. | Replace gas control valve. |
| Problem with the internal circuit. | 1. Turn power to the water heater off for 10 seconds | |
|
|
| and then back on. |
|
| 2. | Replace gas control valve. |
| Flame signal sensed out of proper sequence. | 1. | Replace gas control valve. |
|
|
|
|
| ECO activated. | 1. | Replace gas control valve. |
|
|
|
|
| One of the temperature adjust buttons stuck | 1. | Press and release each of the buttons once. |
| closed. | 2. | Replace gas control valve. |
| Water temperature sensor is either open or | 1. | Check that all wiring is correct and secure. |
| short circuited. | 2. | Replace gas control valve. |
21
