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Part
5:
BASIC SERVICE
5.2 General Troubleshooting
(Cont.)
Insufficient pumped
Clogged pump intake screen
.................
Clogged spray pipe
...............................
Scrap screen full
of
debris
....................
Low water level in tank
........................
Pump motor rotation incorrect
spray pressure
Defective pump seal
..............................
Spray pipe end plug missing
.................
Spray pipe O-ring missing
....................
Wash restrictor needs adjustment
.........
Faulty pressure reducing valve
.............
Improper setting
on
pressure
.................
Clogged rinse nozzle andor pipe
..........
Insufficient final rinse
or no final rinse
reducing valve
Clogged line strainer
.............................
Defective final rinse switch
..................
Defective final rinse solenoid valve
......
Clean pump intake screen
Clean spray pipe
Must be kept clean and in place
Check drain valve(s)
Refer to Part 3.3, Start-up Procedure,
Steps 21-23, page 24
Refer to Repair Procedure 5.3.14
Replace missing end plug
Replace missing O-ring
Refer to Repair Procedure 5.3.13
Refer to Repair Procedure 5.3.1
Correct pressure setting is 20-22 PSI
Clean pipelnozzles
Clean screen or replace line strainer
Refer to Repair Procedure 5.3.15
Refer to Repair Procedure 5.3.4
Low final rinse
temperature
temperature
Low incoming water
.............................
Booster steam supply shut off
...............
Booster water supply shut off
...............
Rinse nozzle or pipe cap missing
Defective final rinse thermostat
............
Defective thermometer
.........................
Low steam pressure
..............................
Defective steam solenoid valve
............
Defective steam trap
.............................
Increase incoming water temperature
110°F minimum for 70"rise booster
140°F minimum for 40"rise booster
T u r n
on steam supply
T u r n
on water supply
Replace missing part
Refer to Repair Procedure 5.3.9
Refer to Repair Procedure 5.3.7
Correct steam pressure is 15-30 PSI
Refer to Repair Procedure 5.3.4
Refer to Repair Procedure 5.3.1 1
Poor washing results
Detergent dispenser
...............................
not operating properly
Insufficient detergents
...........................
Wash water temperature
.......................
too low
Wash arm clogged
................................
Improperly scraped dishes
....................
Ware improperly placed in rack
............
Drain-Overflow(s) clogged
...................
debris not skimmed from tank(s)
..........
Wash water not drained at specified
.....
intervals
Check dispenser
Refill containers
See condition "Tank(s) water
temperature is low when in use"
Clean
Check scraping procedures
Use proper racks. Do not
overload racks
Check overflow tubes
Drain tanks every two hours
or after each meal period.
Conveyor not moving
Drive motor V-belt broken
...................
Conveyor chain needs adjustment
........
Conveyor shaft bearings defective
Replace drive belt
dishracks
Refer to Repair Procedure 5.3.16
Refer to Repair Procedure 5.3.17
aiid
Repair Procedure 5.3.18
39
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