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39
In the event of an alarm message, try to re-start the unit with the safety switch.
If this does not work, try to solve the problem with the help of the table below. Call your installation contractor if
you need help. See "References" on page 39.
Table 3: Alarm Messages
Alarm
DISPLAY EEPROM
DISPLAY-TRANSITION COMMUNICATE
TRANSITION EEPROM
TRANSITION-MAIN COMMUNICATE
MAIN-MODULE COMMUNICATE
OUTDOOR TEMP.
MODULE VOLTAGE OVER
IPM MODULE
CMP TOP OVER
CMP TEMP.
RETURN TEMP.
WARM WATER TEMP.
FEEDLINE TEMP.
PIPE TEMP.
ADD HEAT OVER OR FLOW TROUBLE
HIGH PRESS
LOW PRESS
ROOM TEMP.
WARM WATER TEMP. TOO LOW
BRING IN TEMP.
BRING OUT TEMP.
RETURN AIR TEMP.
LIQUID TEMP.
Control
Alarm Messages
EEPROM reading failure from display
The communications failure between display board and
transition circuit board
EEPROM reading error from transition circuit board
The communications error between transition circuit
board and main circuit board
The communications error between main circuit board
and module
Outdoor ambient temperature sensor error
Outdoor module voltage over-low error
IPM module error
Compressor top temperature over
Compressor exhausts temperature sensor error
Return water temperature sensor error
Water tank temperature sensor error
Feed water temperature sensor error
Pipe temperature sensor error( defrosting)
Water flow error or electrical heater
Pressure over high
Pressure over low
Room air temperature sensor error
The water tank temperature is too low
The brine water inlet temperature sensor error
The brine water outlet temperature sensor error
Compressor return air temperature sensor error
Refrigerant temperature sensor error( before evaporate)
Explanation
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