Hmi Fault Codes - Hoffman INNOVATEIT Instruction Manual

7.1 HMI Fault Codes

# Delay
1 -
2 -
3 -
4 -
5 -
6 -
7 20s
8 5s
9 5s
10 10s
11 3s
12 10s
13 10s
14 30s
15 5s
16 • 5s
34 | Troubleshooting
HMI Alarm
SENSOR 01 (FLOW METER) SIGNAL FAULT
SENSOR 02 (TANK LEVEL) SIGNAL FAULT
SENSOR 03 (PRODUCTION PUMP DISCHARGE
PRESSUERE) SIGNAL FAULT
SENSOR 04 (CARBON FILTER INLET SENSOR)
SIGNAL FAULT
SENSOR 05 (CARBON FILTER OUTLET SENSOR)
SIGNAL FAULT
SENSOR 06 (TEMPERATURE SENSOR) SIGNAL
FAULT
PUMP DISCHARGE LOW PRESSURE SWITCH
FAILED TO CLOSE
PUMP DISCHARGE VFD FAULT RELAY
TRANSFER PUMP MOTOR STATER OVERLOAD
RELAY
PRODUCTION PUMP PRESSURE OVER LIMIT
CARBON FILTER DIFFERENTIAL PRESSURE TO
HIGH
PRODUCTION PUMP FEEDBACK SIGNAL BAD
QUALITY
PRODUCTION PUMP IS NOT RUNNING
TRANSFER PUMP FLOW SWITCH IS OPEN
LOW PRESSURE DURING CLEAN/FLUSH MODE
CONCENTRATE FLOW SWITCH FAIL TO CLOSE
Cause
Signal could be high/low, or sensor disconnected
Signal could be high/low, or sensor disconnected
Signal could be high/low, or sensor disconnected
Signal could be high/low, or sensor disconnected
Signal could be high/low, or sensor disconnected
Signal could be high/low, or sensor disconnected
Pressure switch located before the inlet to the
pump is too low
VFD is faulted
The overload relay tripped
Production pump is creating more than 200 psi
The differential pressure between the carbon fi lter
sensors is too high
Check signal wiring from the pump
Run status relay on pump did not close
No fl ow was detected after the production pump.
Check Valve D - sensor stuck or Transfer Pump
never ran.
Flow meter is reading less the 1gmp during fl ush
No fl ow was detected through the concentrate
return line. Sensor stuck, or pump never ran.