Flexit EcoNordic WH4 - 7. Troubleshooting Common Issues; 7.1. Airflow and Fan Issues; 7.2. Operational Faults and Sounds; 7.3. WH4 Model Specifics

7. Troubleshooting
Error indication Cause Remedy
Cold intake air Incorrect intake air temperature Check selected intake air temperature.
Check that the re-heater is switched on.
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Too little air ’Away’ mode is activated Change mode to ’home’ or ’high’.
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Check intake air valves &OHDQWKHȴOWHUVLIWKH\DUHEORFNHG
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problem persists
Contact your retailer.
The fans do not
operate
Fault in fan or unit Check that the product’s power supply is working.
If not, check that the fuses are intact.
If the fault persists, contact your retailer.
The overheating thermostat has tripped Reset the thermostat if it has tripped.
If it trips repeatedly, contact your retailer.
Rotor alarm The rotor has stopped Open the door of the ventilation module and check to see
whether the rotor is spinning.
If the rotor is stationary, contact your retailer.
The rotor is spinning, but at the wrong speed Contact your retailer.
No hot water The tank is empty - hot water is being produced Wait 30 minutes, until hot water is available again.
Check in the app to see whether an alarm
has been triggered.
Follow the instructions in the app. If necessary, contact your
retailer.
Other cause Contact your retailer.
Water around or
under the product
The drip tray is clogged Check the drip tray and clean if necessary (see chapter 5.6)
Water system leakage Consider the severity of the leakage.
If the problem is severe or recurring, contact your distributor.
Abnormal sound %ORFNHGȴOWHUV &KHFNȴOWHUV5HSODFHȴOWHUVLIQHFHVVDU\
Incorrectly set valves Check to see whether any of the valves are completely
closed.
Open valves should not be touched, except for cleaning.
See separate point under maintenance.
The combibox or intake grille has frozen. Remove the ice and clean the intake.
Other cause Contact your retailer.
Other alarms - Contact your retailer.
Tillegg for WH4
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radiator
Faulty initial settings on product Contact the distributor
Air in the heating system Check the pressure against the installer’s instructions.
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system. Contact the distributor if assistance is required.
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Contact the distributor if assistance is required.
If outdoor temperatures are very low, this may
require more heat than the product can deliver
Use other heat sources in the house.
Fault on product Contact the distributor.
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ECONORDIC WH4/W4