28
BRH FF
GB 01/20010
FAULT
CAUSE
SOLUTION
Display indication
Er47
HSW12 communication error with remote
keypad (only if remote keypad featured)
Check electrical connection
Display indication
Er75
Pressure transducer malfunction
Check electrical connection (see unit wiring
diagrams)
Replace the component
Display indication
Er81
Compressor maintenance interval
Check operating pressure
Check condition of the compressor
Reset the clock
Display indication
Er85
Water pump maintenance interval
Check condition of the water pumps
Reset the clock
Display indication
Er90
Maximum alarm log size exceeded
Reset alarm log
Values display indication
Er61
Faulty BT2 system water outlet sensor (auto-
matic reset)
Check electrical connections
Replace component
Values display indication
Er60
Faulty BT1 system water return sensor (auto-
matic reset)
Check electrical connections
Replace component
