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TROUBLESHOOTING
26
CONDITION CAUSE SOLUTION
Insufficient pumped Clogged pump intake screen................. Clean
spray pressure Clogged spray pipe ............................... Clean
Scrap screen full.................................... Must be kept clean and in place
Low water level in tank ........................ Check drain-overflow assembly
Pump motor rotation incorrect .............. Reverse connection between L1
and L2 in Control Cabinet
Defective pump seal.............................. Contact Service Agent
Insufficient final rinse Faulty pressure reducing valve ............. Clean or replace
or no final rinse Improper setting on pressure................. Set flow pressure at 20-22 PSI/
reducing valve 138-151.8 kPa
Clogged rinse nozzle and/or ................. Clean
pipe
Improper water line size ....................... Have installer change to
proper size
Clogged strainer in fill valve ................ Clean or replace
Low final rinse Low incoming water Check the booster (MH60, MH6N)
temperature temperature ........................................... be sure the thermostat is set to
maintain180°F/82°C temperature.
MH6L check incoming water is set
Min. 120°F/49°C-140°F/60°C.
Check valve to be sure it is clean
and operating
Defective thermometer ......................... Check for proper setting or
replace
Poor washing results Detergent dispenser............................... Contact detergent supplier
not operating properly
Insufficient detergents........................... Contact detergent supplier
Wash water temperature ....................... See condition “Wash Tank
too low Water Temperature” above
Wash arm clogged ................................ Clean
Improperly scraped dishes .................... Check scraping procedures
Ware being improperly ......................... Use proper racks. Do not
placed in rack overload racks
Improperly cleaned ............................... Unclog wash sprays and rinse
equipment nozzles to maintain proper
pressure and flow conditions.
Overflows must be open. Keep
wash water as clean as possible.
Heater elements..................................... Clean and delime
have soil/lime buildup
TROUBLESHOOTING (Cont.)