![](/images/new-backgrounds/1057829/5782971x1.webp)
TROUBLESHOOTING GUIDELINES
WATER HEATER CONTROL
TROUBLE SHOOTING
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 | SOLUTION | |
6 | B C D E F | Ignition/flame failure. | 1. Gas supply is turned | |
| The water heater has reached the | manifold gas pressures are within requirements in installation | ||
|
| manual. Manifold gas pressure is | ||
|
| maximum number of retries and is | off by more than 0.3” W.C. (75 Pa) replace | |
|
| currently locked out for one hour. | 2. Low supply voltage - should be 115 | |
|
|
| ||
|
| Cycle the power to the water heater | 3. Ensure flame sensor is making good contact with burner | |
|
| off and on to reset. | flame, ensure flame is steady see #8 below. | |
|
| Service Note: | 4. Ensure the flame sensor is clean - use ultra fine steel | |
|
| The resistance (ohms) of a hot surface | wool or | |
|
| ignitor will increase over time. If the | 5. Ensure the hot surface ignitor is positioned to provide | |
|
| resistance at room temperature is near | ||
|
| consistent ignition. | ||
|
| 18.8 ohms - consider replacing the ignitor | ||
|
| 6. Check for any cracks in ignitor assembly ceramic | ||
|
| as a preventative measure. | ||
|
|
| insulators - replace ignitor assembly if damaged. | |
|
|
| 7. Check resistance of ignitor at room temperature (77ºF) | |
|
|
| (25°C) at the plug end. Replace ignitor if resistance is | |
|
|
| not within 11.5 and 18.8 ohms at room temperature. | |
|
|
| 8. Ensure correct size of vent pipe (2”, 3”, 4”) was used per | |
|
|
| installation manual for vent length. Using larger pipe than required | |
|
|
| may cause excessive air turbulance in combustion chamber. | |
|
|
|
| |
7 | B C D E F | Self diagnostic tests have found a problem | 1. Turn the power off for | |
| with the gas valve driver circuit, internal | clear these error codes. | ||
|
| microprocessor, or other internal circuits. | 2. If any of these error codes persist or cannot be cleared- | |
8 | B C D E F |
| replace the | |
|
|
| ||
9 | B C D E F |
|
| |
|
|
| ||
|
|
|
| |
10 | B C D E F | Flame signal has been sensed out of | 1. Turn the power off for | |
| proper sequence. | to clear this error code. | ||
|
|
| 2. Replace the | |
|
|
|
| |
| B C D E F | Water temperature in the tank has | 1. Turn the power off for | |
11 | exceeded 195°F (91°C) and has | to clear this error code. | ||
| ||||
|
| activated the ECO. | 2. Replace the | |
|
|
| ||
|
|
|
| |
|
| The self diagnostic check detected one | 1. Press and release temperature adjust buttons. If above | |
12 | B C D E F | or both of the temperature adjust buttons | action does not clear error, control will continue to regulate | |
|
| are stuck. | water temperature at last setting. However, settings will no | |
|
|
| longer be adjustable - the control should be replaced. | |
|
|
|
| |
| B C D E F | The self diagnostic test has detected the | 1. Turn power off for | |
13 |
| water temperature sensor (thermistor) is | clear this error code. | |
|
| either open or shorted. | 2. Replace the | |
|
|
| ||
14 | B C D E F | 1. Turn off power to the water heater. | ||
| resistor wire on the ignitor assembly plug; resistor | 2. Insure black resistor wire is not cut, missing, and is installed | ||
|
| wire is open or shorted. | between pins 3 & 4 of ignitor assembly plug. Replace ignitor | |
|
| Service Note: To perform this test ohm meter | assembly if damaged or defective. | |
|
| 3. Unplug ignitor assembly plug from control. Check resistance | ||
|
| used must be capable of reading up to 2,000,000 | of black resistor wire between pins 3 & 4 with an ohm meter. | |
|
| ohms. Unless ohm meter used has an | 3.1 If reading taken is less than 2000 (5000 for date code 0617 | |
|
| feature resistance should be checked twice. First | through 0709) or more than 1.7 million ohms, replace ignitor | |
|
| reading will be taken using an ohms scale above | assembly. 3.2 If reading taken is between 2000 (5000 for date | |
|
| 1,700,000 ohms. Second reading is taken using | code 0617 through 0709) and 1.7 million ohms, replace | |
|
| ohms scale just above 2,000 or 5,000 ohms. | Intelli- Vent™ control. | |
|
|
| Service Note: Raised ridges on ignitor assembly plug identify | |
|
|
| #1, #2, and #3 pins. The | |
|
|
| side of the controller. | |
|
|
|
|
36