Reversomatic RERV-C100ECM - Troubleshooting (contd)

Severe Conditions
Moderate Conditions
Dry Climate
Pacific Conditions
High Humidity
U.S. Department of Energy climate zones map
HRVs are recommended for colder climates.
ERVs are designed for warm-humid climates
with long cooling seasons.
Troubleshooting (cont’d)
10
PROBLEMS POSSIBLE CAUSES SOLUTION
4.Timer switch 20/40/60 minute /
intermittent Switch light
doesn't stay on
- loose connection
- the switch may be defective
- turn off the HRV/ERV bracker
- check connection
- replace the timer switch
- reset the main controller
5. Unit is not defrosting properly
- fresh air duct maybe frozen
- HRV/ERV airflow improperly
balanced
-Temp. sensor maybe defective
- check and remove the ice
- have professional balancer or
contractor balance the unit
- replace theTemp. sensor
6.All 3 LEDs of timer switch blinks
- Control board reports error
- lost communication with main
control board
- refer to problem 4.
- check all wire connections on timer
switch and main control board
7. LED’s on the Main Control board
and the remote wall mount Timer
Switch will flash 0.5 sec On/0.5
sec Off/0.5 sec On then 2 sec
Off, then repeat the cycle
- Exhaust fan open circuit:
a) motor burned
b) fan overheated
- replace motor
- call technician (if possible replace
fan)
- damper obstructed
- exhaust fan jam / over-current
- check backdraft damper, no screw
must interfere the function of the
damper
- replace the fan
8. LED’s on the Main Control board
and the remote wall mount Timer
Switch will flash 0.5 sec On/0.5
sec Off/0.5 sec On/0.5 sec Off/
0.5 sec On/0.5 sec Off/0.5 sec On
then 2 seconds Off, then repeat
the cycle
- Supply fan open circuit:
a) motor burned
b) fan overheated
- replace motor
- call technician (if possible replace
fan)
- damper obstructed
- Supply Fan jam / over-current
- check back-draft damper, no screw
must interfere the function of the
damper
- replace the fan
9.
LED’s on the Main Control board
and the remote wall mountTimer
Switch willflash:
0.5 sec On/0.5 sec Off/
0.5 sec On/0.5 sec Off/
0.5 sec On/0.5 sec Off/
0.5 sec On/0.5 sec Off/
ts off and
0.5 sec On, then 2 seconds Off,
then repeat the cycle
- temperature sensor failure
(both motors shuts off)
- replace temperature sensor
Select HRV/ERV for your Climate Zone