Vollrath Mix60-Water Cooled User Manual
Page 22
English
Mixer
22
ERROR CODES
The Display shows an error code A – – / AEE / P – – / PEE
IMMEDIATELY TURN OFF THE CIRCUIT BREAKER.
Note:
Error codes are unusual but possible under special circumstances. Before deciding that machine is out
of order, switch machine off for as long as it takes to normalize temperatures (30...60 minutes), turn
back on and check for error codes.
Error code “A – –”: the GLYCOL’s temperature probe detects a temperature HIGHER than the safety limits.
Cause:
There are air bubbles in glycol system and pump cannot circulate it. Bubbles can be due to a leak or
because machine is placed on its side or upside down (THIS MUST BE AVOIDED). Call a Service
Technician.
Cause:
Glycol system pump is broken. Call a Service Technician.
Cause:
Glycol temperature probe is broken (cut off or out of range). Call a Service Technician.
Cause:
The control circuits cannot turn the power supply off to the glycol system heating elements (they are
kept on). Relevant power relay has likely locked. Call a Service Technician.
Error code “AEE”: the GLYCOL’s temperature probe detects a temperature LOWER than the safety limits.
Cause:
Glycol temperature probe is broken (due to a short circuit) or wiring is damaged. Call a Service Techni-
cian.
Error code “P – –”: the TANK's temperature probe detects a temperature HIGHER than the safety limits.
Note: If a very high HEATING TEMPERATURE is programmed (see par. 6.3, P1 programming) the alarm signal
may show (this occurs, however, only in certain circumstances).
Cause:
Machine is running dry or product in the tank is insufficient. Restore minimum quantity of product.
Cause: The tank temperature probe is broken (interrupted or out of tolerance range). Call a Service Technician.
Error code “PEE”: the TANK's temperature probe detects a temperature LOWER than the safety limits.
Cause:
The tank temperature probe is broken (due to a short circuit) or wiring is damaged. Call a Service
Technician.
Cause:
The control circuits cannot turn the power supply off to the glycol system heating elements (they are
kept on). Relevant power relay has likely locked. Call a Service Technician.
Cause:
The tank temperature probe is broken (cut off or out of range). Call a Service Technician.