CMA Dishmachines CMA-66 - Manual (Page 23)

Operation
3.5. Trouble Shooting
PROBLEM LIKELY CAUSE SOLUTION
Pre-wash/power wash
motor inoperative
Bad motor or capacitor
Faulty contactor
Replace defective motor
Replace contactor
Fuse is burned out Replace fuse
Table limit switch Remove dish rack at switch
Defective door reed switch Replace reed switch
Defective start reed switch Replace reed switch
Defective auto/manual switch Replace switch
Machine inoperative
Defective 60 Sec. Timer Replace timer
Defective 60 Sec. Timer or settings Replace timer or change settings Machine runs continuously
Contactor stuck Replace contactor
Float switch Check movement-replace it
Defective thermostat or setting Replace thermostat or adjust
Defective heater contactor Replace heater contactor
Defective heater Replace heater
Defective heater switch Replace switch
Heater (no heat)
Wire connections Check and correct
Broken rack Replace rack Racks stuck
Tray track alignment Adjust properly
Low incoming water supply
(150°F-low temp, 180 °F- high temp)
Check hot water supply
Thermostat setting Adjust thermostat
Vent hoods Close vents as much as possible
Low wash tank
temperature
Defective heater Replace heater
Plugged rinse jets Remove and clean
Pressure regulator out of adjustment Adjust pressure regulator
Water sol. valve coil or diaphragm Replace or clean
Dirty rinse jets Remove and clean jets
Low rinse water pressure
or no rinse
Defective rinse reed switch Replace reed switch
Dispenser or settings Check dispenser troubleshooting guide Chemicals
Rinse pressure Set 20 psi.
Quick drain on pre-wash end Plumb quick drain back into pre-wash
tank above water line
Sheet pans Use CMA sheet pan rack
Machine loosing water
Drain valves open Close completely
Tank water level low Check rinse pressure, drain valve open
Clogged jets Clean jets
Low spray arm pressure
Motors connected wrong Connect motors to reverse impeller
direction
MODEL CMA-66 Installation & Operation Manual Rev. 1.06 01/11/05 Page 22