Venmar HRV110 Manuel D'utilisation Et D'installation page 19

7. INSTALLER'S TROUBLESHOOTING (
E D
RROR ESCRIPTION
E40 Outside air thermistor
E42 PCBA thermistor fault
E43 PCBA temperature over limit
E50 Wall control communication lost
W D
ARNING ESCRIPTION
W61 Protection mode
electronics
overheating
Make sure that no piece of mineral wool will enter in the unit during installation. Otherwise, this could reduce
airfl ow and generate vibrations and noise in the unit.
' )
CONT D
STEP 1: Contact customer service.
STEP 1: Validate if the air exchanger is exposed to ambiant temperatures
within the operating limits (see section 2.3)
If STEP 1 did not fi x the problem, contact customer service.
STEP 1: Unplug unit, inspect wall control wires, plug unit.
If STEP 1 did not fi x the problem, perform STEP 2: Remove wall control from
the wall installation and test with a short cable. If it works, bring a new cable
to the wall installation location.
If STEP 2 did not fi x the problem, perform STEP 3: Test the air exchanger with
a spare wall control. If it works, replace the wall control.
If STEP 3 did not fi x the problem, contact customer service.
The unit is currently in protection mode. The power transmitted to the motor is deliberately
reduced to decrease electronics temperature. The unit will exit this mode by itself once
conditions are back to normal. It is normal to observe reduction in airfl ows during this period.
This condition should appear only when the unit is set in high speed and located in a warmer
environment, for example over 30°C (86°F). If not, contact customer service.
CAUTION
S
OLUTION
S
OLUTION
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