Atlantic HPWH 200 Lt, Installation And Operation Manual, Page: 34 / 39

Default Possible reason Diagnosis and service
No heaBng
No hot water
No power supply to the water
heater : fuse, cabling…
Check the voltage on the power
supply cable
Check the parameters of the
installaBon (see periods of
operaBng)
Hot water volume not sufficient Water heater layout too small
OperaBon in ECO mode
Check the programmed periods
and recepBon of Night / Low Tariff
signal.
Select AUTO mode
Low pressure on the tab. Filter of security group clogged.
Tank full of scale.
Clean the filter (see §
maintenance).
Remove the scale from the tank.
Water dripping out of the security
group when the water heater is not
heaBng
Security group damaged or
clogged.
Supply pressure too high
Replace the security group
Check that the supply pressure
acer the water counter does not
exceed 5 bar (0,5 MPa), if it does
install a pressure reducer set to 3
bar (0,3 MPa) at the start of the
water network.
The electric backup heater does not
work.
Mechanical security thermostat
was triggered.
Thermostat defect
Backup heater defect.
Reset the security thermostat on
the heaBng element.
Replacer the thermostat
Replace the element
Condensate overflow. Condensates evacuaBon clogged Clean the evacuaBon
Bad smell No siphon installed on the security
group or on condensates
evacuaBon
No water in the siphon of the
security group
Install a siphon
Fill the siphon
Vapor on the hot water tap Electric backup works permanently Shut off the electricity supply and
call the installer.
Interface does not work or display
problems
No power supply
Interface defect
Control the power supply.
Replace interface.
Overview InstallaBon OperaBon Maintenance Warranty
Acer maintenance or repair, check the correct operaBng of the water heater. 33