Operating instructions

Table Of Contents
- 38
Interruptions in warm water circulation
Fault Possible cause Remedy By whom
Low water level in
the swimmer tank
for warm water
Water supply blocked Open locking tap for fresh water Operator
Sieve in the water shortage safe guard is dirty Clean or replace the filter inlay. Operator
Swimmer valve in the swimmer container for
warm water is not opening
Check swimmer valve; repair, if needed. Operator
Safeguard against water scarcity in the swimmer
container for warm water is jammed or defective
Check the water scarcity safeguard, replace if
necessary.
Operator
Hose pipe is burst or has come off Check the hose lines, replace if necessary. Operator
Pump disconnection from mains (optional) not
working
Check supply voltage.
Check pump.
Customer Ser-
vice
Water temperature
is too low / too high
Thermostat defective. Check the thermostat, replace if necessary. Customer Ser-
vice
Burner does not
start or interrupts
the heating
Flow monitor is defective Check and clean the flow monitor, replace if nec-
essary.
Customer Ser-
vice
Warm water circulation has calcium deposits Check water preparation, decalcify circuit. Customer Ser-
vice
Air in the circulation pump for warm water Deaerate the pump at the deaeration screw. Operator
Rotation direction of the circulation pump for
warm water is wrong
Check direction of rotation, modify, if required. Customer Ser-
vice
Thermostat defective. Check the thermostat, replace if necessary. Customer Ser-
vice
Protection for the circulation pump for warm water
is defective
Check the contactor, replace if necessary. Customer Ser-
vice
The motor protection switch of the circulation
pump for warm water has been triggered as the
circulation pump is blocked or the pump is defec-
tive
Check circulation pump; repair or replace if nec-
essary. Reset motor protection switch.
Customer Ser-
vice
Malfunctions of the washing station heater
Fault Possible cause Remedy By whom
Circulation pump
for washing station
heater out of order
Temperature in the warm water tank below 10 °C
(fault display "F 244").
Look for the malfunction in the warm water circuit
and fix it.
Operator/Cus-
tomer Service
40 EN