43
Re
f.
Alarm description
Aqu@
Scop
Advance
DCI
action
Alarm cancellation
time
delay
Possible cause(s)
Recommended action(s)
e36
--
information--
boiler/
electric heat. backup
activated
information
stop backup mode
n
one
emergency heat switch is
on
(see
§
Aqu@
Scop
Advance
DCI
eM
ergenc
Y
o
Pera
tions
s
W
it
ch
)
e37
Frost protection
W
ater temperature
below limit
c
ompressor stop
h
eaters
on
automatic
reversing valve stuck
u
nit in
o
ff mode
c
heck reversing valve
h
eat water using auxilary heat
e50
c
ompressor discharge
temperature sensor
cdt
disconnected or
damaged
reduced capacity operation
automatic
10 s
d
isconnected or faulty sensor
c
heck the wiring of the sensor
, replace
the sensor if it is faulty
.
e51
c
ompressor suction
temperature sensor
cst
disconnected or
damaged
c
omplete shutdown
automatic
10 s
d
isconnected or faulty sensor
c
heck the wiring of the sensor
, replace
the sensor if it is faulty
.
e52
c
ompressor suction
pressure transducer
eP disconnected or
damaged
c
omplete shutdown
automatic
10 s
transducer disconnected or faulty
c
heck the wiring of the transducer
,
replace the transducer if it is faulty
.
e53
the compressor does
not start
c
omplete shutdown
twice then then manual
d
river problem
c
ompressor wiring
c
ompressor unserviceable
switch the power supply off and then
on
c
heck the voltage
c
heck the wiring between the driver
and the compressor
replace the compressor
e54
e
cs
water return
temperature too high
information
ecs
temperature sensor incorrectly
located or heat exchanger undersized
e55
o
ver
heating of
electr
ic
heater resistance
resistance shut
-down
auto twice then manual
insufficient water flow
excessive water temperature
e60
d
c
i d
riv
er
t
emp
er
at
ur
e
too high
c
omplete shutdown
automatic
d
irty heat sink
o
perating conditions outside limits
c
lean the heat sink
c
heck the operating conditions
e61
dci
driver voltage too
low
c
omplete shutdown
automatic
supply voltage
c
heck the power supply
e62
dci
driver voltage too
high
c
omplete shutdown
automatic
supply voltage
c
heck the power supply
e63
dci
current too high
c
omplete shutdown
automatic
supply voltage
c
heck the power supply
