Error List; Permanent Errors - Riello TAU Unit 140 Installation And Maintenance Manual

− Power the thermal module by setting the system's and
the appliance's master switches to "On".
− Press the MENU key, select "System test" and press ● to
confirm.
Menu
" "
Domestic Hot Water (DHW)
"
Information
" "
Settings
" "
System Test
" "
− select "Max. power" with the ▲ / ▼ keys and press ● to
confirm. The fan starts turning at its maximum speed
(which can vary based on the model).
System Test
" "
Test State
" "
Fan Speed
" "
Ionisation
" "
− The equipment will work at maximum power (chimney
sweep function)
− Check that the nominal pressure of the supply gas is that
indicated in the table
DESCRIPTION
Wobbe index
Nominal supply pressure
After the checks:
− select "OFF" with the ▲ / ▼ keys and press ● to confirm.
− Disconnect the pressure gauge and tighten again the
pressure test point screw (1) upstream from the gas valve.
System Test
" "
Test State
" "
Fan Speed
" "
Ionisation
" "
− Fulfil the operations, place back the front panel and lock
the locking screws.
"
High Power
" "
0 rpm
" "
0.0 μA
G20 G31
45,7 70,7 MJ/m
20 37 mbar
Off
" "
0 rpm
" "
0.0 μA
3.4

Error List

When a display has a technical fault, a numeric error code ap-
pears that will enable the maintenance operator to identify the
possible cause.
There are 3 categories of errors:
1 Permanent: errors that require a manual reset
2 Temporary: errors that are automatically reset once the
cause that generated them is removed or stopped
3 Notices: simple warnings that do not block the appliance's
operation
3.4.1

Permanent Errors

Nr. Error
0 E2PROM_READ_ERROR
1 IGNIT_ERROR
2 GV_RELAY_ERROR
3 SAFETY_RELAY_ERROR
4 BLOCKING_TOO_LONG
FAN_ERROR_NOT_RUN-
5
NING
6 FAN_ERROR_TOO_SLOW
7 FAN_ERROR_TOO_FAST
3
8 RAM_ERROR
WRONG_EEPROM_SIG-
9
NATURE
10 E2PROM_ERROR
11 STATE_ERROR
12 ROM_ERROR
15 MAX_TEMP_ERROR
16 FLUE_GAS_ERROR
17 STACK_ERROR
18 INSTRUCTION_ERROR
19 ION_CHECK_FAILED
20 FLAME_OUT_TOO_LATE
21 FLAME_BEFORE_IGNIT
23 CORRUPTED_ERROR_NR
29 PSM_ERROR
30 REGISTER_ERROR
65
COMMISSIONING AND MAINTENANCE
Description
Internal software error
Three unsuccessful ignition
attempts in a row
Failure detected in the GV
(Gas Valve) relay
Failure detected in safety
relay
Control had a blocking error
for more than 20 hours
Fan is not running for more
than 60 seconds
Fan runs too slow for more
than 60 seconds
Fan runs too fast for more
than 60 seconds
Internal software error
Contents of Eeprom is not up
to date
Wrong safety parameters in
Eeprom
Internal software error
Internal software error
The external overheat pro-
tection is enabled or the
T_Supply sensor measures
a temperature of over 100°C
(212°F)
Flue temperature exceeded
the maximum flue temper-
ature
Internal software error
Internal software error
Internal software error
Flame still present 10 seconds
after closing the gas valve
Flame is detected before
ignition
Error code RAM byte was cor-
rupted to an unknown error
code
Internal software error
Internal software error