DISPLAYING ALARMS
FAULT
Values display indication
HP1
Values display indication
LP1
Values display indication
A1
Values display indication
E2
Values display indication
E4
Values display indication
E1
Values display indication
FL
English 06/09
16
CAUSE
High pressure switch tripped
Low pressure switch tripped
(automatic reset)
Compressor thermal cut-out tripped
(manual reset)
Water delivery sensor BT2 malfunction
(automatic reset)
Coil sensor BT3 malfunction
(automatic reset)
Water return sensor BT1 malfunction
(automatic reset)
Differential pressure switch or fl ow switch
tripped
(automatic reset)
REMEDY
Check fault
Reset the switch
Check fault
Check water outlet temperature
Check water fl ow
Check set point temperature
Check electrical connections
Replace component
Check electrical connections
Replace component
Check electrical connections
Replace component
Check for inadequate water fl ow
Check presence of air in water circuit
MICS-C / MICS-CN
I
A