Operation
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.18B
Page
16
3.5.
Quick service guide
MODEL: CMA 180UC HIGH TEMP UNDER COUNTER
TECHNICAL ISSUE
CAUSE
SOLUTION
Pressure regulator is not set properly Set regulator to 18-20 psi
Faulty rinse micro switch
Replace micro switch, P/N 00411.00
Scrap trap over flows
Drain hose elevated too high
Must be lowered to goose neck level
Obstruction in drain hose
Check hose & clean
Scrap exit screen
Clean exit screen
Faulty drain pump
Replace pump, P/N 15503.00
Machine not level
Adjust machine legs to level
Machine is leaning forward
Adjust machine legs to level
Door leaks
Wash arm end cap missing
Replace end cap, P/N 00308.20
Door gasket
Replace gasket, P/N 14506.60
Loose wire at display, board or
transformer
Secure connectors
Thermometer failure
Faulty temperature sensing wire
Correct, replace, P/N 03202.66
Faulty temperature sensing unit
Replace unit, P/N 03203.00
Faulty transformer
Replace transformer, P/N 03202.60
Scaled heating element
Clean scale from heater
Rinse water temperature low /high
Booster heater’s thermostat not
properly set
Adjust thermostat
Incoming water temperature to
booster heater below 140 F
Adjust external water heater in the facility
Loose lead connections
Check and crimp connectors
Pump motor not running
Faulty # 3 micro switch
Replace micro switch, P/N 00411.00
Faulty contactor
Replace contactor, P/N 15504.00
Faulty wash pump motor
Replace wash pump motor, P/N 00201.00
Pump motor runs continuously
Faulty # 3 micro switch
Replace micro switch, P/N 00411.00
Faulty contactor
Replace contactor, P/N015504.00
Water regulator not adjusted properly Adjust regulator to 18-20 PSI
Low water pressure at the final rinse
Clogged final rinse spray jets
Clean jets
Missing final rinse spray end cap
Replace end cap, P/N 00308.17
Low incoming water pressure from
facility
Increase pressure to 18-20 psi
Scrap trap overflows over night
Faulty water solenoid diaphragm
Clean or replace diaphragm, P/N 00706.00
Low wash or rinse water temp.
Check temperature settings
Poor cleaning results
Wash arm bearing or jets
Clean bearing and arm jets
Rinse arm bearing or jets
Clean bearing and arm jets
Tank discharge screen dirty
Clean screen
Wash tank will not drain.
Drain valve not operating
Check power to drain valve
Drain valve faulty
Replace Drain valve, P/N 04103.00
