Reversomatic Economy Series - Manual (Page 15)

Troubleshooting (cont’d)
13
- temperature sensor failure - replace temperature sensor 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/0.5 sec Off/
0.5 sec On/0.5 sec Off/
0.5 sec On, then 2 seconds Off,
then repeat the cycle 11.
- Supply Fan jam - replace the fan 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 10.
9. 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, 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)
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 then 2 sec Off,
then repeat the cycle - exhaust fan jam - replace the fan
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 second On
then 2 seconds Off then repeat
the cycle - Exhaust
a) motor burned
b) fan overheated fan open circuit:
- replace motor
- call technician (if possible replace
fan)
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 the Temp. sensor
4. Timer switch 20/40/60 minute
light doesn't stay on - loose connection
- the switch may be defective - check connection
- replace the timer switch
2. Senses cold air from
Supply
- Exhaust hood outside the house is
blocked
- HRV/ERV airflow improperly
balanced
- outdoor temperature is extremely
cold
- remove the blockage and clean the
hood
-
is restricting the movement
of air in the home
- install a duct heater
have contractor balance the unit
- placement of furniture or closed
doors
3. Water in the bottom of HRV - drain pans , drain tube, drain pipe
and “P” trap are clogged
- check for blockage and for kinks in
line
- check connections
- make sure water drains properly