DFRIGO User Manual |
Document subject to change without prior notice.
47
List of alerts.
Alert
Component involved Possible causes
Recommended actions
Δ BT1
Temperature probe
BT1
Incorrect configuration
or connection of the
converter, BT1 probe
damaged or incorrect
connection.
Check connections and if
necessary replace components.
Δ 01
BP1 process air filter
pressure switch
Dirty/blocked filter.
Clean or replace filter.
Δ 04
BP2 reactivation air
filter pressure switch
Dirty/blocked filter.
Clean or replace filter.
Δ 05
Protections: U1, U2,
FK1, FK2
Circuit breaker tripped
Check motor currents and
resistances with the fuse/MCB
rating
Δ 06
rotor rotation sensor
Rotor rotation sensor
damaged; rotor motor
damaged; bad
connection or
fuses/condensers
blown; tightening belt
broken or slipping.
Check that the rotor is turning,
check the proximity of the rotor
rotation sensor, check rotor
motor, fuses and capacitor.
Δ 09
Differential pressure
sensor BQ2
Reactivation air flow
too low.
Check air flow and components
involved in reactivation zone (fan,
dampers, filters. etc.).
Δ 12
Fault in the
process/dry air fan
This comes from the
EC process/dry air fan
motor electronics.
Check the free rotation,
connection, current: switch off for
1 minute. Switch on again and if
the fault recurs contact SAT.
Δ 13
Fault in the
reactivation/wet air
fan
This comes from the
EC reactivation/wet air
fan motor electronics.
Check the free rotation,
connection, current: switch off for
1 minute. Switch on again and if
the fault recurs contact SAT.
