P/N 3141959_C 5-11
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
FNGSC-A Self Contained Merchandisers
TROUBLESHOOTING GUIDE
PROBLEM
The refrigeration system is
noisy
Condensation
Water leaks; unpleasant odor
Frost or ice buildup
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.
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.
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