Venmar E10 HRV - Troubleshooting Guide; LED Signal Error Troubleshooting; Wall Control Display Issues

19
For the Installer
12. TROUBLESHOOTING
LED SIGNAL ERROR TYPE ACTION UNIT STATUS
LED flashes GREEN Outdoor thermistor error. Ensure J12 connector is properly connected and its wires
are not damaged. If they are correct, replace the thermistor.
Unit works but will
defrost frequently.
LED flashes AMBER Damper error. Go to point p. 20 "Integrated control LED flashes AMBER". Unit does not work.
LED flashes RED Motor error or bad contact
of J11 connector.
Ensure J11 connector is properly connected. If it is properly
connected, see Section 8 A or 8 B, according to unit model.
Unit does not work.
Altitude or
Platinum wall
control does not
display the outdoor
temperature
Is the unit’s
integrated push-
button set to off?
No
Push on the
integrated push-
button until the LED
indicator of the
integrated control
turns OFF
Yes
• Reset control: simultaneously press and hold
both arrow keys for 8 seconds
• Unplug unit
• Wa it 1 m inut e
• Plug unit back
• Using the wall control, put unit in VENT
mode at MIN or MAX setting
• Wa it 5 m inut es
Is temperature now displaying?
Are both ends of
the control’s RED
wire properly
connected?
Yes
No
Restore proper
connection
Yes
No
Change the wall
control
Problem solved
Wall control does
not work
Is the power outlet
energized?
No
Refer to an
electrician
Yes
• Unplug auxiliary controls
• Uplug unit
• Wa it 1 minut e
• Plug unit back
• Wait 30 seconds – Unit performs booting sequence: LED lights up, you
hear the relays, you see the dampers move
• Once booting sequence is over (after 30 sec.), try operating the unit
using the integrated push-button.
When hitting the integrated push-button multiple times, does the LED go
from OFF to A MBER to GREEN and bac k to OFF?
Yes
Are the wall control
wires properly
connected? Pay
special attention to
the BLACK and
YELLOW wires.
No
The probl em is not
the wall control.
Proceed to
appropriate
troubleshooting.
No
Restore connections
Yes
Use a voltmeter. Is
there 8-12 VDC
betwee n BLACK an d
YELLOW?
Yes, but
problem not
solved.
Change the wall
control.
No
Test the wall control
using a ne w wi r e.
Does the wall
control no w wor k?
No
Change the wall
control.
Yes Change the wire.