COSMOGAS FRYO 6PI, Instructions For Installation, Use And Maintenance Manual

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FRYO PI
COSMOGAS
8 - DIAGNOSTIC
Code Description Operation status Possible causes and solutions
02 E1
Communication between water and gas
side control boards failed
Compressor stopped
Failed communication between display and gas side
control board. Check the wiring and that switches 1,2
and 8 on the gas side control board are ON, while all the
switches on the water side control board must all be OFF.
Verify that the previously mentioned control boards are
working.
02 E2
Communication between gas side control
board and compressor inverter board
failed
Compressor stopped
Check the wiring between the gas side control board and
the compressor inverter. Check that they are not broken,
if so, replace them.
02 E3
Fault in a compressor supply phase
(open or short-circuited)
Compressor stopped
Check that the compressor power supply wiring is not
broken or short-circuited. Check the impedance between
the compressor phases.
02 E4
Overcurrent at a compressor supply
phase
Compressor stopped
Check that the inverter is not broken, replace it if neces -
sary. Check that the compressor is not broken, replace it
if necessary. Check that the wiring to the compressor is
intact.
02 E5 Compressor inverter board fault Compressor stopped
Check that the compressor inverter board is not broken,
replace it if necessary. Check that the wiring to the com -
pressor is intact.
02 E6 High or low voltage inverter board fault Compressor stopped
Check that the inverter board is not broken, if necessary
replace it.
02 E7 Gas side control board current error Compressor stopped Replace the gas side control board.
02 E8 Eeprom fault Compressor stopped Replace the gas side control board.
02 F1 Outdoor temperature sensor error Compressor stopped
Check that the outdoor temperature sensor is not short-
circuited, open or that it does not rise too much. Replace
it if necessary. If this error appears only when the com -
pressor is running, check that the outdoor temperature
sensor and the battery sensor are not inverted.
02 F2
Error in the evapo-condensing battery
temperature sensor
Compressor stopped
Check that the evapo-condensing battery temperature
sensor is not short-circuited, open or that it does not rise
too much. Replace it if necessary.
02 F3
Compressor discharge temperature
sensor error
Compressor stopped
Check that the compressor discharge temperature sensor
is not short-circuited, open or that it does not rise too
much. Replace it if necessary.
02 F4 Error on the suction temperature sensor Compressor stopped
Check that the suction temperature sensor is not short-
circuited, open or that it does not rise too much. Replace
it if necessary.
02 F5 Low water pressure sensor error Compressor stopped
Check that the low water pressure sensor is not short-
circuited, open or that it does not rise too much. Replace
it if necessary.
02 F6 High water pressure sensor error Compressor stopped
Check that the high water pressure sensor is not short-
circuited, open or that it does not rise too much. Replace
it if necessary.
02 F7 High pressure switch high Compressor stopped
This error appears if the pressure switch is open when
the unit is in stand-by or after 2 minutes that the com -
pressor has stopped. Check that the high pressure switch
is not broken or badly connected. Check that the fan and
pump are working properly. Check that the evapoconden -
sing battery is not obstructed, that the water temperature
is not too high and that there is less than 8 ° C difference
between supply and return.
02 F8 Water flow switch error Compressor stopped Check the operation of the water flow switch.