Problem Cause Action
Case temperature is too warm. Case is in defrost.
Product load may be over its limits
blocking airflow.
Ambient conditions may be affect-
ing the case operation.
Condensing coil or evaporator coil
is clogged or dirty.
Review T-Stat settings.
Redistribute product.
Check case position in store. Is the case
located near an open door, window, or air
conditioning vent?. RH should not be over
50% and temperature above 75º.
Clean coil.
Case temperature is too cold. The T-Stat Temp is set too low.
Ambient conditions may be affect-
ing the case operation.
Condensing coil or evaporator coil
is clogged or dirty.
Check setting. See factory guidelines.
Check case position in store. Is the case
located near an open door, window, or air
conditioning vent? RH should not be over
50% and temperature above 75º.
Clean coil.
Condensation on glass. Inadequate air circulation.
Product load may be over its limits
blocking airflow.
Ambient conditions may be affect-
ing the case operation.
Check grill on die board for adequate air-
flow over glass.
Redistribute product.
Check case position in store. Is the case
located near an open door, window, or air
conditioning vent? RH should not be over
50% and temperature above 75º.
Water has pooled under case. Case drain is clogged.
Check PVC drains under case for
leaks.
Evaporator pan is overflowing.
Clear drain.
Repair as needed.
Check electrical supply to dissipater pan.
Check float assembly.
(Note: Cases equipped with electric dissi-
pater pans should NEVER have food
products washed or poured into the drain
as it will result in damage to the heating
element.)
Frost or ice on evaporator coil. Check evaporator fans.
Defrost clock doesn't work.
Check electrical connections. Have unit
serviced by a qualified service technician.
Troubleshooting Guide
