A.O. Smith 120 through 250 Series, Инструкция по установке, эксплуатации и обслуживанию

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Instruction manual BFC 73
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13 Errors
13.1 Introduction A distinction is made between:
•
General errors
General errors are not reported on the display. General errors are:
-
Gas smell
- Display does not light up
- Insufficient or no hot water.
- Water leakage
- Explosive ignition.
The manual includes (13.2 "Troubleshooting table for general errors") a
table with general errors.
• Displayed errors
Errors are reported on the display as follows:
-
Line one: an error code and a brief description. The code consists of a
letter and two digits.
- Lines two, three and four: a long description, alternating with a
recommended action. See the figures. The first shows a possible
error, the second shows the appropriate checking action.
There are various types of errors, all falling into one of two groups:
-
LOCK OUT ERRORS
When the cause has been removed, these errors require a reset with
the
button, before the water heater can resume operation.
- BLOCKING ERRORS
These errors disappear automatically once the cause of the error has
been removed, after which the water heater resumes operation by
itself.
The manual includes (13.3 "Troubleshooting table for displayed errors") a
table of error messages that can appear on the display.
• Warnings on the display
The warnings (13.4 "Warnings on the display") apply to the water heater.
S02: SENSOR ERROR
TOP TANK
SENSOR 1
NOT CONNECTED
S02: SENSOR ERROR
CHECK TOP TANK
SENSOR