Vollrath VB9 - Manual (Page 22)

English
Vertical batch freezer
22
The water tubes present constrictions. Avoid constrictions.
The water condensing faucet/s are partially or totally closed.
The static pressure valve must be newly regulated, otherwise it is broken. Call the Assistance
Service.
Note: To check if the water correctly flows and if the static pressure valve is regulated, it is sufficient
to temporarily detach the water outlet tube (at the end not connected at the device). Water
must flow only when the refrigerating system is in function.
The incoming water’s temperature is higher than that prescribed in the Technical Handbook.
Cause: The compressor is overheated due to a lack of ventilation. Clean the loopholes and restore the
minimal distances for the circulation of air at the sides of the device.
Note: it may be necessary to wait up to 30 minutes for the thermal protections to cool down.
Break down the refrigerating system, or the electric controls. Call the Assistance Service.
Unusual noises.
The noisiness comes, mainly, from the cylinder, when the beating is activated.
Cause: Beater's blades are not correctly adjusted. Proceed as describes in Par. 7. 5 - Adjusting blades.
A layer of ice has developed between the beater and the cylinder: the mixture is not idoneous, or is not
sufficient.
Beater's blades may be damaged or worn. Check that the plastic blades' scraping edges do not show
any dents, scratches or wear marks which cannot be mended by adjusting. Should this be the case,
replace blades.
The beater and/or the cylinder are damaged or excessively worn. Call the Assistance Service.
Cause: The beater and/or the cylinder have gone through a sudden temperature's changing, and stress me-
chanically. Stop the machine and wait for a few minutes.
The noisiness DOES NOT come from the cylinder, or it there is also when the beating is not activated.
Cause: Inside break down. Call the Assistance Service.
10.1
ALARM SIGNALLINGS
Code of alarm“ ou ou ou ou ou”: high supply’s voltage
Possible cause: supercharging from the net electrical worker. Call the Assistance Service.
Code of alarm “ uu uu uu uu uu”: low supply’s voltage
Possible cause: temporary lessening of energy from the net electrical worker. Call the Assistance Service.
Code of alarm “ CC CC CC CC CC”: short circuit
Possible cause: breakdown to the part electrical worker. Call the Assistance Service.
Code of alarm “ OC OC OC OC OC”: motor overload
Possible cause: the ice cream contained in the cylinder has become too much solid causing the block of the
beater. Turn off the machine with the pushbutton [K1], wait a minute, starting the machine
and repeat the job cycle.
Code of alarm “ Oh Oh Oh Oh Oh”: high temperature of the dissipator
Possible cause: the heat dissipator has exceeded the temperature limit (+ 65°C). Call the Assistance Service.