Acond PRO-N - Page 38

Heat pumps AIR / WATER
Operation manual 36
Cod
e
ALARM
Cause
Deletion
A14
BLOCKED
SENSORS
electrical problem
Restart heat pump If the
fault occurs again, call
service
A16
LOW FLOW
THROUGH PLATE
EXCHANGER
Clogged water filter
Aired water circuit
Insufficient performance, circulator
failure
Clean the water filter
Ventilate the water circuit
A17
LOW FLOW
THROUGH
SOLUTION
EXCHANGER
Solution aerated circuit
Insufficient performance, solution
circulation pump failure
Ventilate solution circuit
W00
HIGH TEMP OF
PLATE HEAT
EXCHANGER
Overheated by solar heating,
bivalent source (e.g. solid fuel boiler)
Only notice, will self-
resolve
W01
LOW
TEMPERATURE
IN ROOM
On arrival
Only notice, will self-
resolve
W02
LOW
TEMPERATURE
IN ACCU.
On arrival, when using another heat
source (e.g. boiler), at higher
outdoor temperature
Warning only, starts the
heat pump, disappears
on its own
W03
LOW
TEMPERATURE
IN ROOM 2
On arrival
Only notice, will self-
resolve
W04
HIGH
TEMPERATURE
IN ACCU.
Overheated by solar heating,
bivalent source (e.g. solid fuel boiler)
Only notice, will self-
resolve
W05
LOW
TEMPERATURE
OF EVAPORATOR
Low outdoor temperature, high
humidity
Warning only, triggers
defrost, extinguishes
itself
W07
LOW
TEMPERATURE
OF PANEL
On arrival
Only notice, will self-
resolve
W08
SERVICE WATER
FAULT
Insufficient service water plate heat
exchanger flow, insufficient service
water circulation pump power, three-
way service water valve failure
Check primary circuit
throughput
W09
UNALLOCATED IP
Internet connection problem
If it lasts longer than 1
day, contact the service
– see Chapter 0