Impulse DO3637R Benutzerhandbuch

21 

R

E0  flashing, Air probe has failed.  

E1  flashing, Defrost termination or product probe has failed. 

L0  flashing, Low temperature alarm. 

H1  flashing, High temperature alarm. 

Ed  flashing, Defrost timeout has occurred (did not terminate 
correctly).  

dF  flashing, Controller is in defrost mode (not and alarm).  
Compressor is running is a normal condition. 

If a large amount of warm product was added to the case, it will 
take time for the temperature to adjust. 

The temperature will change during defrost mode but will return 
to normal.  

Check that the discharge air is not  disrupted or blocked by 
product (Product is above load limit level). 

Check that the case is not in the sun or near a heat or air-
conditioning vent. 

Is case located near front doors. 

Check the evaporator coil for ice build up (can be viewed from 
fan shroud inspection cover).