Vivax HPS-41CH120AERI/O3 R410a User Manual page 132

ENG
ERROR CODE
Transducer module
temperature too high
protect
DC generatrix voltage is
too low
MALFUNCTION OR
PROTECTION
FAILURE CAUSE AND CORRECTIVE ACTION
1. Power supply voltage of the unit is low, increase
the power voltage to the required range.
2. The space between the units is too narrow for
heat exchange. Increase the space between the
units.
3. Heat exchanger is dirty or something is block on
the surface. Clean the heat exchanger or
remove the obstruction.
4. Fan is not running. Fan motor or fan is broken,
Change a new fan or fan motor.
5. Water flow rate is low, there is air in system, or
pump head is not enough. Release the air and
reselect the pump.
6. Water outlet temp.sensor is loosen or broken,
reconnect it or change a new one.
1. Check the power supply.
2. If the power supply is OK,and check if LED light
is OK, check the voltage PN, if it is 380V, the
problem usually comes from the main board.
And if the light is OFF, disconnect the power,
check the IGBT, check those dioxides, if the
voltage is not correct, the inverter board is
damaged, change it.
3. And if those IGBT are OK, which means the
inverter board is OK, power form rectifier bridge
is not correct, check the bridge. (Same method
as IGBT, disconnect the power, check those
dioxides are damaged or not).
4. Usually if F1 exist when compressor start, the
possible reason is main board. If F1 exist when
fan start, it may be because of inverter board
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VIVAX