Atlantic 200L - Page 77

EN
75
Code displayed Cause Consequence Troubleshooting
Error 25
Pressure switch
opening or thermal
compressor safety
HP stopped.
Heating in ELEC.
Check
the connections of the compressor
(mark
R
1), the pressure switch, the start capacitor (15
mF)
and
the hot gas valve (Mark T2). Check
the
resistances
of the compressor coils.
Error 28
Defrosting system
fault
HP stopped.
Heating in ELEC.
Check
the cleanliness of the evaporator.
Check
the R134A fluid level (defrosting device).
Check
the fan's operation (M1 mark) and
power
supply
on the terminal block.
Check
that the condensate is drained properly.
Check
the hot gas valve connections (T2 mark)
and
its
operation (TEST menu).
W. 30 .1
Ineffective HP
heating
HP stopped.
Heating in ELEC.
Check
the fluid level.
Check
the fan's operation (M1 mark) and
power
supply
on the terminal block.
W. 30 .2
Ineffective HP
heating
HP stopped.
Heating in ELEC.
Check
the fluid level.
Check
the fan's operation (M1 mark) and
power
supply
on the terminal block.
W. 30 .3
Defective
pressure
regulator
HP stopped.
Heating in ELEC.
Check
there is no ice on the pipes between
the
regulator
and the evaporator.
Check
the fluid level.
If
full, replace the regulator.
Overview Installation Use Maintenance Warranty
Fault observed
Possible cause
Diagnostics and troubleshooting
Water not hot enough.
The main power supply to the
water heater is not continuous.
Set the temperature setpoint to a
lower level.
ECO mode selected and air
temperature outside range.
Heating element or its wiring
partially out of order.
Check
that power supply to the
appliance
is
continuous.
Check
that there is no return of
cold
water
to the hot water circuit,
(possible
faulty
mixer tap).
Set
the setpoint temperature higher.
Select
the AUTO mode. Check
the
duration
of the programming ranges.
Check
the resistance on the spark
plug
connector
and that the beam is in
good
condition
.
Check
the safety thermostat.
4.2. Other faults without error code display.
Temperature/ohmic value correspondence table for the product's air, evaporator and thermowell sensors
(CTN 10k Ω).
Temperature in °C
-20
-15
-10
-5 0 5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
97.9
73.6
55.8
42.7
32.9
25.5
20
15.8
12.5
10
8
6.5
5.3
4.4
3.6
3
2.5
2.1
1.8
1.5
1.3
Resistance in kΩ