A.O. Smith DRE PLUS, Installation, User And Service Manual

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11 Troubleshooting
11.1 Errors and warnings
The water heater can have three different kinds of errors:
•
General errors, which are not displayed
• Displayed errors (see 11.1.2), which are divided in two different groups:
-
Lock out errors: when the cause is removed, you can reset the error to resume
operation. The code is displayed continuously and the exclamation mark blinks.
- Blocking errors: when the cause is removed, the error resets automatically to
resume operation. The code is displayed continuously and the exclamation
mark blinks.
• Displayed warnings (see 11.1.3)
Note
It is possible to view the error history of the water heater, refer to Error history (see
9.8).
11.1.1 General errors
Note
For the coding of the connections, refer to the Electrical wiring diagram (see A.5).
Indication Cause Measure
Water leakage There is a leakage from a threaded wa-
ter connection. Tighten the threaded connection.
There is a leakage from another nearby
water heater or pipe segment. Trace the leakage.
There is a leakage from the water heater
tank. Contact the supplier of your water heater.
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