Scotsman RS160 - Manual (Page 20)

SERVICE DIAGNOSIS
PROBLEM PROBABLE CAUSE CORRECTION
Will not dispense ice 1. No ice in hopper 1. Fill hopper with ice
2. Vend switch does not close 2. Check vend switch, replace if
open
3. Drive motor will not run 3. Check drive motor, and wiring
connection, replace if not
working
4. Door solenoid will not open
door 4. Check/replace door and
solenoid
5. Rotor will not turn 5. Check hub of rotor
6. Relay for vend switch does
not close during operation. 6. Check relays, replace if
necessary.
Water to syrup ratio too low or
too high 1. Dispensing valve syrup flow
regulator not properly adjusted 1. Adjust water to syrup ratio
2. CO
2
gas pressure to syrup
tanks insufficient to propel syrup
out of the tank
2. Adjust syrup tanks secondary
CO
2
regulator
Adjustment of dispensing valve
syrup flow regulator does not
increase to desired water to
syrup ratio 1. No syrup supply 1. Replenish syrup supply as
needed.
2. Syrup tank quick disconnects
not secure 2. Secure quick disconnects
3. Syrup tanks secondary CO
2
regulator out of adjustment.
3. Adjust syrup tanks secondary
CO
2
regulator
4. Dispensing valve syrup tank
quick disconnect, or syrup line
restricted. 4. Sanitize syrup system as
instructed
Dispensed product carbonation
too low 1. Carbonator primary CO
2
regulator out of adjustment for
existing water conditions or
temperature
1. Adjust carbonator primary
CO
2
regulator
2. Air in carbonator tank 2. Vent air out of carbonator
tank through relief valve.
Actuate dispensing valve until
carbonator comes on.
3. Water, oil, or dirt in CO
2
supply
3. Remove contaminated CO
2
.
Clean CO
2
system (lines,
regulators, etc.) using a mild
detergent. Install a clean CO
2
supply.
No product (only water)
dispensing from all valves 1. Out of CO
2
1. Check CO
2
supply
Dispensed product comes out of
the dispensing valve clear, but
foams in the cup or glass 1. Oil film or soap scum in cup
or glass 1. Use clean cups or glasses
RS160 and RS220
June 1995
Page 20