Error Codes - Heatrae Sadia Multipoint ECO 100L V 3kW Installation, Operation And Maintenance Manual

10.2 Error codes / Trouble Shooting
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Error codes are indicated by " " + the error code number.
The error is displayed until a reset is performed (Mode + Set) or the Error is suppressed.
ERROR CODE 1: NTC ERROR
In case the NTC sensor is damaged, Error code 01 is displayed
If the error is maintained after the product is turned OFF and ON and a factory reset, the thermostat has to be replaced.
ERROR CODE 2: SAFETY OPEN (IBD ONLY)
The product detects that the safety cut out has opened the electric contacts removing power from the heating circuit.
The origin is likely to be an unexpected overheat condition in the water tank. Flush the tank through with cold water to
cool it down before resetting (See Fig 14 page 27).
If the error is repeated after a manual reset or general reset, replace the thermostat controller.
ERROR CODE 3: FAST HEATING OVERHEAT (DRY START CONDITION)
Water heater immersion is < ON > with no water in the tank or the immersion heater is covered with excessive lime
scale.
Turn off the water heater and before starting again check the presence of water in the tank, clean the heating element
from lime scale or replace it, see section 9.2 Maintenance. Heating with an empty tank can damage the water heater.
ERROR CODE 4: UNEXPECTED LONG HEATING PERIOD
The product can detect a heating period which is much longer than expected. In this case, the origin of the issue can
be: a defective heating element, a defective relay, a leakage on the hot water outlet circuit (hot water tap open) or
over usage.
If the error is repeated after a manual reset or general reset, contact an Engineer.
:
ERROR CODE 5 EEPROM FAILURE
If the error is maintained after turning ON and OFF and a general reset, replace the foreground display.
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