Pego 200NDINFSC, User And Maintenance Manual

Page: 24 / 28

DIN NANO FSC Chapter 7 - Diagnostics
USER AND MAINTENANCE MANUAL
Rev. 03-18
Page 24
DIAGNOSTICS
The controller DIN NANO FSC , in the case of any anomalies, will warn the operator through alarm codes
shown on the display.
The code of the last alarm triggered will be stored and can be displayed as only-read within the first level
ALL variable. The view of this variable at the first commissioning (with empty memory) will display - - -.
One of the following messages appears on the screen when an alarm condition occurs:
CODE POSSIBLE CAUSE / DESCRITPION ACTION TO BE TAKEN RESET
E0
Operation anomalies of the adjustment probe
(terminals 23-24)
(The outputs are all disabled apart from the alarm
outputs)
Disabled if mOd = 3

Check the probe status.
automatic
E1
Operation anomalies of the External ambient
NTC probe (terminals 21-22)
(The regulation goes on but turns off the outdoor
temperature compensation)
Disabled if mOd = 3

Check the probe status. automatic
E3
EEPROM ALARM
An error was found in the EEPROM memory.
(The outputs are all disabled apart from the alarm
outputs)

Switch the appliance off and back on

If the problem persists, replace the
Control Circuit Board
manual
Requires
shut-down
Ev
Condenser fans protection
(i.e. thermal protection)
It is activated if there is an alarm input fans.
The 0-10V output is set to 0V.

Check the status of the fans

Check the absorption of the fans

Check the status of the digital input
automatic
EHI
High pressure alarm (DI)
High pressure alarm from digital input. The
fans are forced to 100% (iHv) in order to
reduce the circuit pressure.

Check the refrigerant circuit

If the problem persists contact the
technical assistance service
automatic
EH
High pressure/temperature alarm
(fans 100% of iHv)
Disabled if mOd = 3

Check the refrigerant circuit

If the problem persists contact the
technical assistance service
automatic
EL
Low pressure/temperature alarm
(fans 0% of iHv)
Disabled if mOd = 3

Check the refrigerant circuit

If the problem persists contact the
technical assistance service
automatic
iEn
No enabling consent

Check enabling consent
automatic
CHAPTER 7: DIAGNOSTICS
7.1