Atlantic CALYPSO - Page 119

119119
EN
Warnings
Installation
Use
Malfunction
observed
Possible cause
Diagnostics and
troubleshooting
Water insu󰀩ciently
warm
• The main supply to
the water heater is not
continuous.
• Malfunction of the heat-
ing component or wiring
partially defective.
• Cold water ows back
into the hot water circuit.
• Domestic loop on the
system.
• Ensure the unit has a con-
tinuous power supply.
• Check the electric heater
resistance and wiring.
• Turn o󰀨 the cold water
supply by using the safety
device’s shuto󰀨 valve. Then
open the hot water faucet.
Let 10 minutes pass. If the
water is running, identify
the defective ttings and/or
check the safety device for
being positioned correctly.
• Remove the loop.
Low ow to the hot
water tap.
• The pressure relief valve
lter is clogged.
• Water heater scaled up
• Clean lter.
• Descale water heater.
Continuous water
leaking from the
safety unit outside
heating periods.
• Damaged or dirty pres-
sure relief valve.
• Pressure of the main
water supply is too high.
• Replace the pressure relief
valve.
• Check if the pressure at the
water meter outlet does not
exceed 0.5 MPa (5 bar),
otherwise install a pressure
reducing device set at 0.3
MPa (3 bar) at the begin-
ning of the general water
system.
Electric backup not
working.
• Mechanical thermostat is
switched o󰀨.
• Electric backup is
defective.
• Reset the thermostat safety
device on the resistor.
• Replace the heating
element.