Microprocessor control, Cont.) – Kairak Undercounters (KU) User Manual
Page 12

Undercounter Refrigerators and Freezers
PAGE 12
7B - AlARM EXPlAnAtIons (cont.):
low cabinet Air temperature: The audible alarm will sound and 
the display will read Lo Cab when the temperature inside the cabinet 
falls below a pre-programmed limit. The limit is determined by the 
type of unit being operated (i.e.: refrigerator/ freezer). To turn off the 
audible alarm, press the alarm cancel button. The visual alarm text 
will continue to display until the cabinet air temperature rises above 
the limit. If the temperature does not rise above the limit within 5 
minutes, the audible alarm will sound again and an additional Call 
Service message will display.
PossIBlE cAUsEs:
• No product in unit
• Failed sensors
• Stuck Evaporator Relay
loss of Power: The audible alarm will sound and the display will 
read ELE LOS, when the unit regains power after an outage. To turn 
off the audible alarm and/or clear the visual text, press the alarm 
cancel button. 
condenser clean: The audible alarm will sound and the display 
will read “Clean Filter” when discharge temperatures exceeds 140 
degrees. As the load on the condenser decreases, the alarm will turn 
off by itself. As the temperature on the condenser continue to rise, 
the audible alarm will return until the problem has been eliminated.
notE: If discharge temperature rises above 1600F the compressor 
& condenser fan motor will be switched off until the discharge 
temp falls below 1400F
sensor Failures: The audible alarm will sound and the display will 
read CAB SEN, COL SEN or DIS SEN when that particular sensor 
has failed to operate. To turn off the audible alarm, press the alarm 
cancel function of the sensor, the audible alarm will sound again in 
either 5 minutes or 24 hours. 
notE: test sensor in ice water.
7. MIcRoPRocEssoR contRol
(cont.)
