4.
Troubleshooting
FV-10VEC2R
Problem
1.The ERV doesn’t
work.
2.The HVAC/AHU
doesn’t work
when ERV works.
3.Buzzer sound
(10 sec in a hour)
and ERV works.
4.Buzzer sound
(30 sec in a hour)
and ERV doesn’t
work.
5.ERV doesn’t work
base on the setting
air volume.
Running
indicator
(Green)
Display
Off
Off
On
Off
On
Off
Off
Off
Off
On
Blink*
(0.5 s)
Blink*
(0.5 s)
Blink*
(0.5 s)
*
Blink*
The time under “Blink” means the frequency of blink.
(0.5 s)
On
On
On
On
Check the power cord is connected.
Filter
indicator
(Red)
Action
If a problem is encountered, please investigate it by going through the following items.
If the problem still persists, please disconnect the power and contact the dealer for repair.
Check the frame cover is closed.
Check the main switch in product body is on.
Check if the spring on the inside of frame cover
is damaged or deformed.
ERV running interval according to the ASHRAE
time setting.
Damper may be frozen shut, please wait for
maximum 24 hours for defrosting.
Please disconnect the power and contact the
dealer to check the HVAC/AHU wiring connect.
SA motor error, please disconnect the power
and contact the dealer for repair.
Off
Blink*
(2 s)
Blink*
(2 s)
EA motor error, please disconnect the power
and contact the dealer for repair.
OA damper error, please disconnect the power
and contact the dealer for repair.
Off
EA damper error, please disconnect the power
and contact the dealer for repair.
Blink*
(4 s)
Off
Center damper error, please disconnect the
power and contact the dealer for repair.
Temperature sensor error, please disconnect the
power and contact the dealer for repair.
PCB board error, please disconnect the power
and contact the dealer for repair.
When product runs in circulation mode for
defrosting, the air volume will be more than
setting and sound will be slightly louder than
normal operation.
When outdoor temperature is less than 14 °F
(-10 °C), the product will restrict air volume
automatically to protect energy recovery core.
The RA filter and OA filter need to be maintained.
If you do not want the buzzer notification, please
long press the filter reset button for 3 sec to cancel it.
When outdoor temperature is low (
-22 °F (-30 °C),
ERV stops operating automatically.
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