S1 Dream-T Espresso Machine
Owner’s Manual
Page 18
Alarms Continued
Boiler High Temperature
This alarm will appear if the steam boiler temperature has
reached 130°C/266°F. Check temperature sensor wires to make sure they are firmly
connected. Check temperature sensor for proper calibration. Replace power relay if the
temperature sensor is properly calibrated.
Failed Coffee Group Temperature
This alarm will appear if the coffee boiler has not
reached at least 60°C/140°F within 5 minutes of being turned on. Try turning the machine
on and off to clear alarm. Make sure large volumes of water are not being removed from
the group while the machine is heating up or it may prevent it from reaching temperature.
Check the resettable hi-limit switch on the coffee boiler and check the wire terminals to the
heater for a good connection. Check coffee heater for resistance and for a short and proper
continuity.
High Coffee Group Temperature
This alarm will appear if the coffee group temperature
probe detects 125°C/257°F. Check temperature sensor wires to make sure they are firmly
connected. Check temperature sensor for proper calibration. Replace power relay if the
temperature sensor is properly calibrated.
Flow Meter Failure
This alarm will appear if the machine is unable to sense the signal from
the flowmeter. For plumbed in machines make sure the water is turned on and the filter or
softening system is not clogged. For reservoir models make sure the reservoir is filled with
water and the white softener is standing in an upright position and is not clogged/expired.
Check that the flowmeter electrical plug/wires are firmly seated into the flowmeter. Clean
the white impeller inside the flowmeter by removing and soaking in citric acid or white
vinegar. Check inlet and outlet lines of flowmeter for a blockage.
Failed Communication Touch Keyboard
This alarm will appear if the touchpad is not
detected by the control board. Check all connections to touchpad and control board.
Damaged Timekeeper
The clock module is damaged. Check connections to the touchpad
and control board. Replace clock module.
Default Data Loaded
This alarm will appear if the firmware has been recently updated or if
a system reset has been done. Can be reset in alarms menu.
Service
This alarm will appear if the service feature has been enabled in the menu. This
feature is helpful to notify the user it is time to perform periodic maintenance. The type of
maintenance needed to be done will vary based on how the machine is used and the
hardness of the water. Some common things to be done would be replace the group
gasket, clean/replace shower screens, backflush, recharge/replace water softener, check
machine for leaks, calibrate pump pressure, and verify proper operation of vacuum breaker
valve. After performing service the alarm can be reset in the alarms menu.
