Error Conditions - A.O. Smith cyclone BFC - 80 Installation And Service Manual

8
8.2.4
PROG
In this mode a preset week program is active, and the
appliance responds continually to demand within the
time periods set in the week program. There are two
distinct situations possible in this mode:
PROG
10:00 Monday 76ÉC
MO 11:15 Tset 75ÉC
1. The current time falls within a set time period
of the week program.
The figure shows the display with the following
information:
- line one: the text PROG;
- line two: the time, the day and T
alternately (9.3 "The appliance's heating
cycle");
- line three: the next scheduled switch-off time
and the water temperature T
period;
- line four: is empty, or depending on the
heating cycle (9.3 "The appliance's heating
cycle"), a text such as HEAT DEMAND.
PROG
12:00 Monday 76ÉC
MO 11:15
PERIOD ACTIVATED
2. The current time falls outside a set time period
of the week program.
The figure shows the display with the following
information:
- line one: the text PROG;
- line two: the time, the day and T
alternately (9.3 "The appliance's heating
cycle");
- line three: the next scheduled switch-on
time;
- line four: displays the text
PERIOD ACTIVATED.
In all modes, the temperature may at any moment
drop below the desired temperature. The appliance
then enters a heating cycle. This heating cycle is
identical (9.3 "The appliance's heating cycle")
basic operating modes.
Note
Setting and if necessary programming of the basic
operating modes are described in the main
menu (11 "Main menu") chapter.
50
Status of the appliance
8.3
The figure shows an example of an error condition. If
the appliance enters this condition, the display will
show the following information:
•
•
S04: SENSOR ERROR
and T
1 net
be performed by a service and maintenance engineer.
There are various types of errors:
of the active
set
•
•
The display does not show what type of error has been
detected. A comprehensive overview of the errors is
provided elsewhere in the
manual
If, as end-user, you find the appliance in an error
condition, you may attempt to restart the appliance by
pressing the
and T
1 net
However, if the error returns or occurs several times in
a short time you must contact your service and
maintenance engineer.
for all

Error conditions

line one: error code comprising a letter and two
digits, followed by the error description;
lines two to four: alternately, a brief explanation of
the error, and a brief action to resolve the error.
CHECK
SENSOR OR DUMMY
Caution
The displayed action to resolve the error may only
LOCK OUT ERRORS
When the cause has been removed, these errors
require a reset with the button
appliance can resume operation.
BLOCKING ERRORS
These errors disappear automatically once the
cause of the error has been removed, after which
the appliance resumes operation by itself.
(13 "Troubleshooting").
button
Instruction manual BFC
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