lamber MATIC-M-MA Series, Instruction Manual

Page: 70 / 80

70
6 - The tanks don't stop being filled upon reaching the desired level
A - Check that the trap of the pressure switch has no porosities and the connection pipe is
not disconnected .
B - Check that the pressure switch is in good conditions and is calibrated .
C - Check that there is no dirty in the solenoid valve. This drawback can be noted because
the machine continues to load water, whilst the main on/off switch is off .
7 - Insufficient washing
A - Check that the detergent is effective, of the type for industrial dishwashing machines, and is
proportioned for the right concentration .
B - Check that the detergent container is not empty and operates correctely .
C - Check that the jets of the prewashing, washing and pre-rinsing arms are not cloked. If necessary,
clean them.
D - Check that the dishes are placed in the respective racks. Soup plates have to be mandatorily
placed in rack type P12-16.
E - Check that the feeding rate is not too high. The first speed shall always be used for knives, forks
and spoons that have not been previously softened , for dishes sent to washing after an extended
period of time from their use, and for deep or difficult objects.
F - Check that the temperatures in the tanks are the specified ones.
G - One or several pumps don't operate, in this case check that:
- the overload cutuot didn't switch the pump in question and, if necessary,restore
- finally, the pump is not blocked, the motor is effective and rotates in the right direction.
H - Shadings or spots present on dishes,specially on glasses, may be caused by minerals present in
the water. In such an event, it is suggested to analyze the water used. The contents of calcium and
magnesium in the water should not exceed 10°F. The presence of iron should not exceed 0,1 ppm. If
these values are exceed, it is suggested to treat the water as appropriate .
I - A preliminary softening is suggested prior to washing knives, forks and spoons
8 - Temperatures insufficient in one or several tanks
A - Check that the thermostats are effective and calibrated .
B - Check that the temperature of the feeding water is from 50° to 60° C, as specified .
C - Check that the thermostats relevant to the tanks are set to the right temperatures and
operate correctely .
D - Check that the fuses and the coil of the remote switch are not broken .
E - Check that the heater elements are effective .