Wilo Tagus Vac Notice De Montage Et De Mise En Service page 19

7.5 Error messages
Nr Message Description
1 Pressure too low System pressure too
low, is outside working
pressure range
2 Pressure too System pressure too
high high, is outside working
pressure range
3 Entrycap. too Litres counter does not
low
supply water after
make-up request
5 Cycle interval Make-up cycle interval
too short
6 Nr. of cycles Maximum number of
cycles within time
window exceeded
7 Fill error Filling without request
(litres counter sends
signal without filling)
8 Quantity limit Maximum quantity in a
make-up cycle exceeded
9 Runtime Maximum time of
protection make-up cycle exceeded
10 Exchange Softening module
module exhausted
11 Low mA Interruption of current
P-sensor loop of pressure
sensor
12 High mA Short-circuit in current
P-sensor loop of pressure sensor
13 Vacuum error 3 times in succession
insufficient vacuum for
dearation
14 Level switch Low level
error
Installation and operating instructions Tagus Vac 7-30
Reset Possible cause
B • Leakage
• Pressure-holding value wrongly set
• Wrong admission pressure
• Filling pressure too low
B • Pump does not switch off
• Diaphragm expansion vessel too small/
wrong admission pressure
• Filling pressure too high
A • No pulses sent from litres counter,
because:
• litres counter defective
• cable not connected
• setting value too low for litres counter
response time
A • Leakage in system
• False setting value
A • Leakage in system
• False setting value
A • Leakage
• Solenoid valve don't close/defective
A • Leakage
• Setting value for flow rate reduction
too low
A • Leakage
• Setting value for flow rate reduction
too low
• Pump doesn't deliver
A • Module capacity (water treatment)
exhausted
A • Sensor defective
• Terminal/cable defective
A • Sensor defective
• Terminal/cable defective
• Short circuit
A • Temperature in return branch higher
than 70 °C
• Pump does not operate continuously
• Leakage in Tagus Vac 7-30
• Vent. device doesn't close
B • Vent. device defective
• Strainer / inlet protected
• Valves closed
A N ecessary, reset possible within normal use
(control restarts after resetting).
B No duty, automatic reset within normal use.
Troubleshooting
• Eliminate leakage
• Set correct pressure-holding value
• Increase filling pressure up to working
pressure range
• Check control
• Check admission pressure / use larger
diaphragm expansion vessel
• Lower filling pressure to working
pressure range
• Replace litres counter
• Connect cable
• Use higher setting value for response
time
• Eliminate leakage
• Eliminate leakage
• Program correct settings
• Eliminate leakage
• Replace solenoid valve
• Eliminate leakage
• Correct the setting value
• Eliminate leakage
• Correct the setting value
• Deaerate pump
• Replace module
• Replace sensor
• Check/exchange terminal/ cabling
• Replace sensor
• Check/exchange terminal/ cabling
• Take steps for ensuring return
temperatures below 70°C!
• Replace pump
• Locate leakage in Tagus Vac 7-30
• Clean or replace vent. Device
• Clean or replace vent. Device
• Clean strainer
• Open valves
English
25