Atlantic EXPLORER 200L - Page 38

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Fault observed
Possible cause
Diagnostics and troubleshooting
No
more heat
No hot water
No power
supply to the water
heater: fuse, wiring ...
Check
the presence of voltage
on
the
power cables
Check
the installation settings
(see
the
operating ranges)
Not
enough hot water
At max. setpoint (62
°C)
Hot water heater not large enough
Operating in ECO
Check the duration of the
programming ranges
Select the AUTO mode
Not much flow from the hot water
tap.
Safety unit‘s filter clogged
Water heater scaled up
Clean the filter (see maintenance
section).
Descale the water heater.
Continuous flow of water
to the
safety unit when heater is not
heating
Safety valve damaged or dirty
Mains water pressure too high
Replace the safety unit
Check
that the outlet pressure of
the water meter does not exceed
0.5 MPa (5 bar), otherwise install a
pressure reducer set at 0.3 MPa (3
bar) from the general water supply
The electrical backup is not
working.
Mechanical thermostat in safety
mode
Electric thermostat is faulty
Resistor is faulty
Reset the thermostat safety at the
resistor
Replace the thermostat
Replace the resistor
Condensate overflow.
Clogged condensate flow
Clean
Bad smell.
No siphon on the safety unit or the
condensate drain
No water in safety unit's siphon
Install
a siphon
Fill the siphon
Control panel fault or display
problem
No power
Display fault
Check the power supply.
Check the connection (A3
reference)
Replace the display.
Overview Installation Use Maintenance Warranty
After servicing or troubleshooting, check that the water heater is operating properly