29
Maintenance and care
: Trouble shooting
Use this table to understand the LED lights or localize and solve a possible problem/ fault
(v.1.47):
LED
Audible alarm
Reason
OFF
-
-
No power to PCB
Blue
Burst
Single 1s beep Power up sequence
Slow flash-
ing
-
Self-test sequence activated. LED will blink
until self-test has completed.
Green/Yellow Flashing
-
Unit in remote pairing mode
Green
Constant
-
Unit operating normally
Yellow
Constant
-
Service timer expired. Perform service and
set new interval
Red
2x flash
Single 3s beep
LP alarm. See fault finding guide page 31
4x flash
HP alarm. See fault finding guide page 31
6x flash
Sensor alarm. See fault finding guide page
If you cannot find the reason for the fault, switch off the unit immediately in order to prevent
further damage. Contact a service technician or a Dantherm representative.
Solution
Re
-establish
po
w
er supply
Replac
e fuse
-
Fault finding
Check 230V supply
Check PCB fuse
-
Unit b
eha
viour
LED + displa
y off
Unit in standb
y
Possible c
ause
Po
w
er supply disc
on
-
nec
ted
Fuse
‘F1’
on main PCB
blo
wn
A
mbien
t t
emper
atur
e
is out of oper
ating
range
A
mbien
t humidit
y is
out of oper
ating r
ange
Fault
-
No fault
Ty
pe
-
In
fo
D
ispla
y
tex
t
None
Ab
t
Ab
rh
LED light and
troubleshooting
v .1 .47
Fault finding guide
en