Alpha E-Tec Hybrid - Error Codes and Fault Finding
Error
code
Fault
Fault description
Possible causes
Sr
n
'Blank
screen'
Service reminder count down (0 - 36 months)
has reached zero
See Section 6.13, parameter P6
Note:
E97 is also shown on Climatic controller,
if used
Screen only shows a single dot to indicate
boiler is completely off
Fuse on main PCB blown
Pump fault
Pump fault
Note:
The 'Sr' code will
not
stop the boiler
functioning
Note:
Pressing the
RESET
button will clear the
'Sr' code for 24 hrs to allow the display to be
read
To permanently reset the error 'Sr' / E97
1. Enter the parameter menu using the
password 69. See Section 6.13
2. Parameter P6 will show 0
3. Set P6 to any value above zero, save by
pressing the mode button (
) and wait
for '88' to be displayed as confirmation
4. Then set P6 to 0, save by pressing the mode
button (
) and wait for '88' to be
displayed as confirmation
5. Now set the parameter P6 at the number
of months to the next service reminder
(i.e. 12 for one year). Save by pressing the
mode button (
) and wait for '88' to be
displayed as confirmation
Press mode button (
) for 2 seconds then
release. Boiler display will return and you can
select an operating mode
Incorrect power supply
Seized or sticking pump - Check pump for free
rotation
Boiler component drawing excessive current.
Check individual components in turn
There can be three possible causes for this
anomaly:
1.
Low power supply voltage.
When the
minimum voltage is reached after about two
seconds, the LED turns from red to green to
red and the pump stops. Wait for the power
supply voltage to rise. When the pump
restarts the LED will turn green again with a
delay of about one second
Note:
The flow rate decreases as the supply
voltage decreases
2.
Seized rotor.
After about four seconds of
the seized pump trying to start the LED turns
from green to red. Carefully rotate the screw
in the middle of the pump head to manually
release the rotor. Circulation starts up
immediately the rotor is freed and after about
ten seconds the LED turns from red to green
3.
Electrical fault.
Pump, wiring or PCB fault.
Check the indicated components
Possible causes for this anomaly:
1.
Low power supply voltage
2.
Seized rotor
3.
Electrical fault
Service reminder
Boiler completely
turned off
Boiler fused blown
Pump with UPM3 W3
electronics ONLY
Red pump LED
Pump with UPM4
electronics ONLY
Symbol
with
steady red light
38
