MINIPACK
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2.3.7 ENHANCED CONTROLLER SYSTEM ALARMS
Flashing display giving type of fault, audible alarm, volt-free output signals on BMS Enhanced models, and action as
described.
(see below). (see wiring diagram provided with unit to see which volt free signal relays are present. Typical
example shown in fig. 1.7).
RESET: Alarms are manually muted and reset using the UP (7) or DOWN (8) buttons on the keypad. (Automatic
reset facility can be provided)
***** Alarm *****
Cause
Check
Pressure system Fault
Check pumps 1 & 2 for a pump-tripped
condition.
Check electrical supply is within tolerance, or
missing phase? Pump seized? motor failed?
Motor thermistor overheated?
High pressure
system pressure at/above high
pressure setting & delay timer expired
Pressure vessel air charge wrong? Or insufficient
expansion capacity? Pump(s) left in Hand?
Low pressure
system pressure at/below low
pressure setting & delay timer expired
Pressure vessel air charge wrong? Or water
usage exceeds design capacity? Pump(s) switched
Off or Tripped?
Transducer failed
Pressure sensor output above normal
range of pressure sensor or pressure
sensor not connected correctly.
Pressure higher than sensor range? Or pressure
sensor failed? Or pressure sensor wiring loose?
Pump overload fault
Pump/Inverter tripped signal present
Check electrical supply is within tolerance, or
missing phase? Pump seized? motor failed?
Motor thermistor overheated?
No water in feed tank
water level below supply tank low
water alarm probe or pipework sensor
dry. (240 second delay on automatic
restart, after restoration of water
level).
Break tank float valve stuck closed? Or output of
pumpset exceeds mains water supply into break
tank? Mains water interruption to break tank?
Pump overheated
Pump motor temperature too high.
Pump seized? motor failed? Motor thermistor
overheated?
High water level Tank 1
water level above supply tank high
water alarm probe
Break tank float valve wrongly adjusted, stuck
open or letting by? HP restrictor fitted to
F/valve?
Low water level Tank 1
water level below supply tank low
water alarm probe or pipework sensor
dry. (240 second delay on automatic
restart, after restoration of water
level).
Break tank float valve stuck closed? Or output of
pumpset exceeds mains water supply into break
tank? Mains water interruption to break tank?
Other Fault
Hardware shutdown
Please call AquaTech-Pressmain for advice
No Display
1 Amp control fuse may have blown.
If unit has been switched off for a long period, a
turbine pump (where fitted) may have seized.
Switch off unit, insert flat blade screwdriver into
slot on end of motor shaft and rotate pump until
free. Replace fuse with T1Ax20mm, try again.
If a problem persists contact AQUATECH-PRESSMAIN quoting the serial number WN:_______
or SN:_________ (on control panel fascia)
