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Chapter 6
Fault Detection and Troubleshooting
Page 30
Fault and Action Table
Food transport trolley
SPTW-2/EBF/TEHCO
91319926_A0
Fault
Possible cause
Action
indicator light does not come on.
Defective On / Off switch
Switch off the appliance at the mains,
have it checked and repaired by
authorised specialist staff, if neces-
sary
Defective mains connecting lead or
mains plug
Switch off the appliance at the mains,
have it checked and repaired by
authorised specialist staff, if neces-
sary
Appliance becomes warm;
indicator light does not come on.
Defective indicator light
Take the appliance out of operation,
have it checked and repaired by
authorised specialist staff, if neces-
sary
Defective circuit
Take the appliance out of operation,
have it checked and repaired by
authorised specialist staff, if neces-
sary
Appliance does not become warm;
indicator light is on
Thermostat is defective
Take the appliance out of operation,
have it checked and repaired by
authorised specialist staff, if neces-
sary
Bain-marie well takes too long to heat
up
Too much water in the bain-marie
well
Reduce the amount of water
Deposits of scale or impurities in the
bain-marie well
Take the appliance out of operation,
descale and clean the bain-marie well
after it has been sufficiently cooled
down
Heated cupboard takes too long to
heat up
Heated cupboard door is not closed
properly
Close the heated cupboard door
Damaged lip seal of the frame
Replace the seal (see the list of spare
parts)
Water runs off despite closed valve
Ball valve is defective
Ball valve has to be replaced
Water does not run off despite open
ball valve
Drainage pipe is clogged
When the valve is open carefully push
down stuck leftovers with suitable
tools, e.g. flexible bottle brush or wire.
The platform does not go up even
when the load is low
Spring breakage
Replace a destroyed spring by a new
one
Cooling is not sufficient
Cold storage plates too warm
Insert newly frozen cold storage
plates
Cupboard door is not closed properly
Close cupboard door
The cold storage plate has become
loose due to mechanical impact.
Use new cold storage plates
Product temperature higher than
10°C
Store only cold foodstuff
Usage of wrong cold storage plates
At a lower temperature cold storage
plates containing liquid brine are not
as efficient as the completely frozen
ones
Cold storage plate does not lie on the
uppermost beads
Cold storage plate lies on the upper-
most beads