lassele LRB-771PC, Service Manual

Page: 60 / 84

60
6. ELECTRONIC CONTROL INSTRUCTIONS
6-1-2. FUNCTION TABLE & MANUAL DEFROST
NO Function
Controlled
Part
Description
1
Initial
Operation
1. LED displays inside temperature.
2. Begins to run immediately if higher than 50℉ and
begins to run after 5 minutes pause if lower
than 50℉.
2
Temperature
Control
Compressor
LED
1. The Temperature can be changed by pushing up/down
buttons.
2. LED displays inside temperature
3. Buzzer buzzes 1 time whenever a button is pressed
4. Compressor automatically turns on and off by C-sensor
(Except error mode)
5. Comp. On/off temperature at C-sensor (℉)
Setting5.03.01.0-1.0-2.0
Comp On86321
Comp Off20-3-4-5
Setting-3.0-5.0-7.0-9.0
Comp On0-2-4-6
Comp Off-6-7-9-10.5
3
Defrost
Function
Heater
Compressor
1) Defrost function is controlled time interval setting.
2) Factory setting is every 8 hours.
3) If it becomes defrost cycle time, Defrost heater is
operated when D-sensor senses below 23℉.
4) Defrost heater terminates when D-sensor temperature
comes to above 53℉, then compressor will start after
10 minutes.
5) During defrost period, LED displays dF.
6) If D-sensor does not cut off defrost heater, main pcb
has a back up for defrost time, the maximum is
40 minutes.
7) Defrost can be set by pushing the button for 3 seconds.
(3h, 6h, 9h, 10h(ah) )
4
Error
Display
LED
1) Press `up' button 3 times while pressing and holding
`down´ button.
Above procedure switches normal display to error
display mode. And then 88 LED indicates, `(D1)' or
`(F3)'
or `(C1)' respectively.
2) 10 seconds after the last button pressed, error display
mode will be switched to normal display mode.