Is the door shut and
the magnet
properly
positioned?
No
Shut the door and
verify that the
magnet switch is
properly placed.
Yes
Invert J4 and J5
motor connections.
Does the exhaust
mot or no w wor k?
No
Restore original
motor connections
and re pl ace the
exhaust motor.
Yes
Restore original motor
connections.
Invert the J6 and J7
capacitors connections.
Does the exhaust motor
now work?
Yes
Restore original
capacitor
connections and
replace the exhaust
motor capacitor.
No
Use a voltmeter.
Is there 120VAC
betwee n J9-1 and
J9-4?
No
Replace the
electronic board.
Yes
Connect the RED wire
from the J9 connector to
the RED wire from the
transformer. Does the
ex haust mo tor no w
work?
No
Replace the board Yes
Replace the 18 μF
capacitor
Unit does not work
Integrated control LED is
RED and fla shi ng
Invert J4 and J5
motor connections.
Does the s upply
motor now work?
No
Restore original
motor connections
and re pl ace the
supply motor.
Yes
Restore original
motor connections.
Invert the J6 and J7
capacitors
connections. Does
the supply motor
now work?
Yes
Restore original
capacitor
connections and
replace the supply
motor capacitor.
Replace the
electronic board.
Supply motor does not work
Integrated control
LE D is OFF
First, make sure that only the supply motor does not work.
x Open unit’s door, and remove the core so the motors can be seen.
x Remove the magnet from the door and place it on the switch.
x Plug unit in (beware of live and moving parts). Unit performs a booting
sequence.
x Once the booting sequence is over , use the integrated push-button to set
the uni t in high or low speed (integrated LED turns GREEN).
x Look at the motors. If both motors do not work, go to « unit does not
work / Integrated control LED is OFF ». If only the supply motor does not
work, proceed as follows :
No
For these units:
- HRV Constructo 1.0
- ERV Cons truc to 1.0
- 60H HRV
- 60H ERV
For these units:
- C12 HRV
- C12 ERV
- 60H+ HRV
- 60H+ ERV
Use a voltmeter.
Is there 71VAC between
J9-1 and J9-3?
Yes
No
Replace the
electronic board.
Replace the
transformer
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