Haws 9327 User Manual
Page 10
12) FAULTS are communicated through the LCD display.
The display will switch from the SETPOINT screen to the
FAULT screen and back again every 3 seconds. FAULTS
indicate an undesirable condition and will immediately
shut down the operation of the heater. If faults are
appearing on your heater call Eemax Technical Support
for assistance.
ERROR CODES:
E0: Excessive water flow detected
Corrective action: Using the OUTLET BALL VALVE, slowly reduce water flow until
the desired temperature is achieved. The temperature is proportional to the flow through the
heater; the lower the flow, the higher the temperature and vice versa.
Keep the INLET BALL VALVE fully “OPEN”. NEVER RESTRICT THE WATER
FLOW USING THE INLET VALVE.
E1: Inlet temperature too hot to generate heat
FAULT CODES:
F0: Thermistor out of range
F1: No change in water temperature detected
F2: Leak detected
13) The security of the heater settings is provided by
pressing and holding the LEFT and UP buttons for 3
seconds to lock the buttons. Once locked, the buttons
have no function. Press and hold the same LEFT and UP
buttons for 3 seconds to unlock the buttons.
The security status can be checked at any time by
pressing any one button. If the system is locked, the
screen will display “BUTTONS LOCKED”.
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