Servend S Series - Pump and Quickdraw Troubleshooting; Pump Motor Issues; Quickdraw Mechanism Problems

Section 5 Before Calling for Service
Part Number 020003996 4/12 5-3
Pump Troubleshooting
quickdraw Mechanism Troubleshooting
Problem Possible Cause Corrective Action
Pump motor does not
shut off
Problem with probe or probe harness
Pump motor
intermittent
Problem with probe or probe harness
Pump motor does not
pump
Water pressure from water source is not
high enough
Verify water pressure leading into pump inlet is 40 psi
minimum.
1. Remove probe electronics.
2. Pass magnetic tip of screwdriver by
lower end of tube extending from
electronics package.
3. Reed switch will close.
4. Carbonator operates.
Problem Possible Cause Corrective Action
Ice dispense door is
not closing
CO
2
supply is low.
CO
2
regulator set too low.
Toggle switch is in the OFF or MANUAL
position.
Power is disconnected from unit.
Replenish CO
2
supply.
Check regulator setting and adjust to 40 - 45 psig.
Move toggle switch to the AUTO position.
Plug unit in.
Ice portion size is
increasing
CO
2
supply is low.
CO
2
regulator set too low.
Sensor board and main board are not
communicating properly.
Replenish CO
2
supply.
Check regulator setting and adjust to 40 - 45 psig.
Check main board/sensor board communication process.
Ice portion size is
erratic
Sensor board and main board are not
communicating properly.
Check main board/sensor board communication process.