Reversomatic Deluxe Series - Manual (Page 16)

Troubleshooting (cont’d)
14
PROBLEMS SOLUTION POSSIBLE CAUSES
5. Timer switch 20/40/60 minute
light doesn't stay on - loose connection
- the switch may be defective - check connection
- replace the timer switch
4. “Wall Mount
Unit” showing
error Codes: - Error “E1"
-
Code
Error Code “E2"
- Error Code “E3"
- Error Code “E4"
- Error Code “E5”
- loss of communication with the Control
Board. HRV/ERV switched to OFF mode
automatically.
- defrosting Temperature Sensor Failure.
Blinks with the current operational display.
HRV/ERV does not perform defrost cycles.
- airflow Sensor Failure. Blinks with the
current operational display. HRV runs at
fixed default Low and High fans speeds.
- Humidity Sensor Failure. Blinks with the
current operational display. HRV does not
run in High Humidity mode.
- Kinked duct
- Heavy dust built on air-flow sensors
- Blinks with the current operational display.
HRV/ ERV stops fans, closes damper &
opens furnace/fan-coil/
heat pump interlock relay.
- Fans Failure.
7. 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
6. Defrost Mode does not work - fresh air duct maybe frozen
- HRV/ERV airflow improperly
balanced
(for units without built-in
Automatic Electronic Air-balancing)
- defrost damper motor maybe
defective
- Temp. sensor maybe defective
- improper defrost cycle
- check and remove the ice
-
-
have professional balancer or
contractor balance the unit
replace the defrost motor
- replace the temp. sensor
- check defrost cycle on wall - control
and reprogram
Select HRV/ERV for your Climate Zone
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.
790 Rowntree Dairy Road, Woodbridge ON, Canada L4L 5V3
Tel: 905-851-6701 • Fax: 905-851-8376 • [email protected]
Toll Free: 1.800.810.3473 (Canada) • 1.800.499.5073 (U.S.A.)
w w w . r e v e r s o m a t i c . c o m
8. No display on wall - control - wires are shot
- loose connection - check continuity and replace the wires
- check connections on main controller
and wall controller
- replace wall - contoller
- check wall control connections
- clean temperature sensor, if it still
shows “E2" error replace temperature
sensor
- clean dust and reinstall, if it still shows
l “E3" error replace the air flow
sensors.(supply / exhaust pair)
- replace humidity sensor
- check all ducts for blockage
- make sure all backdraft dampers on
the unit are working fine and no screws
are interfering the backdraft damper
function
- Replace intake fan/exhaust fan
Note:- E3 & E5 will not be displayed on
non-balancing unit.
- use straight metal duct work as possible
- clean both air-flow sensors