Hussmann microSC MNGSC8-A Installation & Operation Manual page 37

Medium temperature self contained island merchandisers
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P/N 3113125_A
PROBLEM
The refrigeration system is
noisy
Condensation
Water leaks; unpleasant odor
Frost or ice buildup
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
TROUBLESHOOTING GUIDE
PROBABLE CAUSE
1 . Screws and bolts are loose
2 . The case is not level
1 . Store temperature or
humidity is outside of
proper operating conditions .
2 . Insufficient air circulation
3 . Hampered air curtain
1 . Case drains are obstructed
or damaged .
2 . Water collection tray is
sealed incorrectly .
3 . Water collection tray is
sealed incorrectly .
4 . Water collection tray
overflows .
Inside the cabinet:
1 . Fans do not work in the
evaporator .
2 . Sdef probe is detached
3 . Air currents that alter the
circulation of refrigerated air .
MNGSC8-A Self Contained Merchandisers
SOLUTION
1 . Make sure bolts and screws
are tightened .
2 . Level the case . use leveling
shims if necessary .
1 . Check case location
2 . Check the operation of fans
and wiring .
3 . Check electrical connections .
4 . Make sure air curtain is
working properly
1 . Release the drains
2 . Repair or replace the drains
3 . Seal piping properly
4 . Check evaporation heater
wiring .
5 . Check the operation of
evaporation heater .
1 . Check electrical connections .
2 . Check the ventilation inside
the store .
5-3

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