Water level below elements. Normal when machine first fills.
Check water pressure. If this is OK the low level probe is possibly covered in limescale/ mineral deposits
Clean low level probe/ descale machine. See instruction video here.
Temperature sensor failure (o/c)
Call service agent
Check temp sensor( red cable entering the tank part No 1600691) is securely fixed to PCB and that the cable is inserted fully into the boiler tank hole with heat paste present.
Water not heating
Call service agent
Check heating circuit wiring, all connections secure no burning. Check thermal overload switch where fitted is pressed inward. Check heating element resistance with machine plugged out of mains socket is reading 18-22 Ohms. If within resistance range and wiring circuit is ok, replace main PCB 1600345 for Ecoboiler range.
Temperature sensor failure (s/c)
Call service agent
Replace thermistor connected to PCB. Failing this replace PCB board 1600345 for Ecoboiler range.
Machine not filling
Check water pressure. If OK switch machine off and on again. If problem reoccurs – call service agent.
Check water pressure. If filter is fit bypass to check if filter is blocked. Check for kinks in hose and inlet valve is switched to open position.
This indicates that the low level circuit is open i.e. the probe is not in contact with the water.
The element is switched OFF at this stage and the inlet is left ON. (Note that if this is a low probe wiring fault, the water will stop at the high level probe regardless of the status of the low level).
This is a recoverable error i.e. the machine does not need to be reset when the problem is solved. (e.g. if a closed mains water stop valve is the problem, opening the valve will allow water into the machine and normal function will resume when the low level probe is reached)
The water level is below the low level probe, which is normal when the machine fills for the first time. (Can be flashing for up to 2 min at start up)
The low level probe wire is disconnected, or there is another wiring fault (eg. a bad earth (return) connection between the PCB and the Tank)
Low level probe has scale or mineral deposits on the low level probe metal tab preventing a reading of the water level.
Check that the water pressure is OK and ensure that the stop valve is open.
Clean low level probe with scotch brite. See Descale and level probe cleaning procedure.
This checks that the temperature is increasing when the heater is on.
Measures the rate that the temperature increases in a specified time. This error is only displayed after 20 mins of the heater being on continuously. When the error is detected, the element and inlet valve are turned off.
This is a non-recoverable error. The machine needs to be reset when this problem is solved.
The elements have failed
Check that the resistance on the elements. If there is a reasonable resistance (18-22Ω) on the element it probably has not failed, so the wiring might be at fault or the PCB board has failed.
This checks that the water in the tank cools when the inlet solenoid valve is switched on.
This is a non-recoverable error. This checks that the water in the tank is cooled by when the inlet solenoid valve is opened. If the water pressure is within the specifications (5-50psi), the inlet solenoid should not be on for more than a few seconds. If this water temperature has not decreased by the required amount
(1 degree per minute), the inlet solenoid is switched off and the 6 flash cycle is displayed.
Mains water pressure problem or the mains water stop valve is closed.
Inlet solenoid valve failure.
Check the mains water supply. (Note: Temporary loss of water pressure can occur in certain sites – particularly when various machines are plumbed to the same mains water supply.) If the water supply is ok, reset the machine (switch the machine Off and On again). This will reset the error and if the water supply is ok, the machine will return to normal operation.
NOTE: If the water supply is the problem, ensure that this is rectified or this error will re-occur.
If there is no problem with the mains water supply, check that the inlet solenoid valve is working.