A.O. Smith 28 30 50 60 service manual Troubleshooting, General errors, Displayed errors

Models: 28 30 50 60

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10

10.1 Introduction

S02: SENSOR ERROR TOP TANK SENSOR 1 NOT CONNECTED

Figure 10.1 Possible error

S02: SENSOR ERROR TOP TANK

CHECK TOP TANK

SENSOR

Figure 10.2 Action

Troubleshooting

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

Table 10.1 gives a troubleshooting overview for general errors.

Displayed errors

Errors are reported on the display, as follows:

-Line 1: An error code and its short description. The code is made up of a letter and two digits.

-Lines 2, 3 and 4: a long description, and a recommended action, alternating every 2 seconds. See Figure 10.1 and Figure 10.2.

The displayed errors are divided into two groups:

There are various types of errors:

-LOCK OUT ERRORS

When the cause is no longer present, these errors require a reset with the Rbutton, before the appliance can resume running.

-BLOCKING ERRORS

These errors disappear automatically once the cause of the error has been removed, after which the appliance resumes by itself.

Table 10.2 gives a troubleshooting overview for the errors that appear on the display.

nRemark

Footnotes referred to from within any table are shown at the bottom of the last page of that table.

Release R.1.3 UK

69

Page 69
Image 69
A.O. Smith 28 30 50 60 service manual Troubleshooting, General errors, Displayed errors