INSTALLATION | Rectifying faults
BIA-EUROPA Mini IWPL-EN11 | www.ochsner.com 15
12. Rectifying faults
Error
Possible cause
Remedy
DHW temperature too low
Water consumption too high
Reduce consumption
Thermostat not on max.
Turn up thermostat
Outdoor air too cold → Heating output too
low
Switch on auxiliary heater (if available)
DHW circulation in continuous operation
Check time switch, check thermostat and non-return valve
Non-return valve sticks
Loosen
Heating gate valve open
Close gate valve
Compressor running and fan not
running
Start capacitor defective
Replace; contact customer service
Winding damage
Replace; contact customer service
Compressor and fan run without
heating the water
No air flow, evaporator dirty
Clean evaporator with water
Evaporator iced-up
Defrost
Air lines clogged
Unclog
Pump faulty
Replace
Pump blocked
Crank
No electricity at charging pump
Check junction box
Compressor not running, fan run-
ning
Starting facility faulty
Replace; contact customer service
Compressor defective
Replace; contact customer service
Continuous water leakage
Safety valve does not close
Vent or replace
Tank defective
Turn off the supply line
Tank drips
Check seals, retighten if necessary
Water discharge, only when heat
pump is running
Condensate
Turn off the supply line
Condensate drain blocked
Clean the drain
Odour
No siphon in the condensate drain
Install
No water in the siphon
Fill
Noise
Gurgling sound
Water level in siphon too low; refill
Rippling noise
Condensate drain blocked; clean
No indication
no voltage 230 V
Check the safety device on the main distributor board for
your house. Switch the safety device back on. If the safety
device triggers again after being switched back on, contact
a qualified contractor or OCHSNER Customer Service.
Fault display heat pump
