Fault Codes - Heatrae Sadia R 45 PLUS 3KW Installation, Operation And Maintenance Manual

10.2 Fault codes


All Error Codes must only be cleared once the
problem has been resolved and the water heater has
been powered off for at least 30 seconds and power then
reapplied. If the error code reappears it is likely that the
fault was not resolved
LED 4 LED 3LED 2 LED 1 (On)
Figure 30: LED's close up
Fault / error code

26
Fault
E1 Indicates that a fault
has been detected by the
Controller linked to the
thermistor
E2 Indicates that a fault
has been detected by the
Controller linked to the
thermistor
The top water level sensor, is used to indicate that the water heater has over filled. If
this is triggered, it indicates there is a fault with the heater solenoid valve or the bottom
level sensor. A fault condition where the water levels cannot be controlled correctly, as
a result the water heater will shut down.

In all error conditions listed below the water heater
will shut down into a safe condition, will not open the
solenoid valve or apply voltage to the immersion heater.
However, the water heater will remain with power applied.
Cause of fault
The thermistor is Open
Circuit
The thermistor is Short
Circuit
Remedy
Replace the thermistor
Replace the thermistor