Operation and Service Manual

30 Tempo Undercounter Ice Machine Bin
Refrigeration System Diagnostic Guide
System
Condition
Section
Pressure
Suction Line Compressor
Discharge
Condenser Capillary
Tube
Evaporator Wattage
Normal Normal Slightly
below room
temperature
Very hot Very hot Warm Cold Normal
Overcharge Higher than
normal
Very cold may
frost heavily
Slightly warm
to hot
Hot to warm Cool Cold Higher than
normal
Undercharge Lower than
normal
Warm-
near room
temperature
Hot Warm Warm Extremely
cold near
inlet - Outlet
below room
temperature
Lower than
normal
Partial
Restriction
Somewhat
lower than
normal
vacuum
Warm-
near room
temperature
Very hot Top passes
warm - Lower
passes cool
(near room
temperature
due to liquid)
Room
temperature
(cool) or
colder
Extremely
cold near
inlet - Outlet
below room
temperature
backing up
Lower than
normal
Complete
Restriction
In deep
vacuum
Room
temperature
(cool)
Room
temperature
(cool)
Room
temperature
(cool)
Room
temperature
(cool)
No
refrigeration
Lower than
normal
No Gas 0 PSIG to
25'
Room
temperature
(cool)
Cool to hot Room
temperature
(cool)
Room
temperature
(cool)
No
refrigeration
Lower than
normal
LED
Readout
Sub
Menu
Function Change Settings Press Light
button to Toggle
Component ON/
OFF
Comments
00 Exit X X
01 Thermistor 1 - Temp not including offsets X X Ice bin temperature
02 Thermistor 2 - Temp not including offsets Not Used
03 Thermistor 3 - Temp not including offsets Not Used
04 Thermistor 4 - Temp not including offsets Not Used
05 Thermistor 1 offset (+/- 10) X X Setting off-set +/- 10 degrees F
06 Thermistor 2 offset (+/- 10) Not Used
07 Thermistor 3 offset (+/- 10) Not Used
08 Thermistor 4 offset (+/- 10) Not Used
09 Thermistor 2 set point Not Used
10 Thermistor 3 set point Not Used
11 Thermistor 4 set point Not Used
12 Defrost Interval (0 to 99 hr) Not Used
13 Defrost Duration (0 to 99 min) Not Used
14 Error Log (See Appx D) X X
15 Clear Error Log (Hold Light Key Until Cleared) X X
16 Thermistor 1 Differential (+5) Not Used
17 Thermistor 3 Differential (+5) Not Used
18 Evaporator Fan ON Delay (0 to 99 sec) Not Used
19 Evaporator Fan OFF Delay (0 to 99 sec) Not Used
20 00 Exit X X Press light once and use
arrows to select output (Once
selected, light toggles state)
01 Not Used
02 Not Used
03 Dump Solenoid X X Pressing light button turns
solenoid ON and OFF
04 Reservoir Fill Solenoid X X Pressing light button turns
solenoid ON and OFF
05 Auger Motor X X Pressing light button turns
Auger Motor ON and OFF
06 Condenser Fan X X Pressing light button turns
Condenser Fan Motor ON and
OFF
07 Interior Light X X Pressing light button turns
Interior Light ON and OFF
08 Not Used
09 Not Used
10 Not Used
11 Not Used
12 Not Used