Ochsner EUROPA Mini IWP, Operating And Installation Manual, Page: 29 / 44

INSTALLATION | Rectifying faults
BIA-EUROPA Mini IWP-EN12 | www.ochsner.com 29
12. Rectifying faults
Fault Possible cause Remedy
DHW temperature too low Water consumption too high Reduce consumption or switch on auxiliary heater
DHW target temperature set too low Check DHW target temperature
Measured value F1 not correct Check sensor F1
Outdoor air too cold (heating output too
low)
Switch on auxiliary heater
DHW circulation in continuous operation Check time switch, check thermostat and non-return valve
Non-return valve sticks Release the valve by tapping it slightly
Heating gate valve open Close gate valve
Defrost active Wait 20 min
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
Insufficient refrigerant Contact customer service
Expansion valve does not open Contact customer service
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.
Electric immersion heater switched
on but not heating
Superheating Acknowledge safety thermostat
Electrical supply defective Replace
Er 36
High pressure shutdown
(acknowledge with OK)
Measured value F1 not correct Check sensor F1
DHW tank not filled with DHW Filling the system with drinking water
Refrigerant circuit Contact customer service
Condenser silted up or calcified Clean, renew
Er 47 defrost fault
(acknowledge with OK)
Intake temperature too low Heat pump operating program = off and temporarily heat
with electric immersion heater
Er 57 Heat source frost protection
(automatic acknowledgement)
Intake temperature too low Heat pump operating program = off and temporarily heat
with electric immersion heater.
Install the ventilation flaps!
Flashing HP symbol Term expiry after 1.5 to 2 years Renew / check anodes, have time counter reset by heating
contractor