Installation Manual recoVAIR/3 0020062918_03
36
7.1
Error Messages in the Remote Control
Indication
on the
display
Check/
component
Cause
Remedy
COM Err
Fans turn with 20% PWM
Communication error between the PCB in the
unit and the remote control.
230 V eBUS line laid parallel in pipe or cable
channel.
Pull the mains plug and insert it again.
If this does not help to eliminate the error,
contact Vaillant Customer Service.
LOCK
Both fans inoperative
Alarm input "X 14" opened.
Check whether a separate switch is connect-
ed to "X 14". Check why the switch is open.If
this does not help to eliminate the error,
contact Vaillant Customer Service.
SAI Err*
Temperature sensor outside
air
Temperature sensor defective (interrupted or
short-circuited).
Wiring interrupted.
Contact Vaillant Customer Service.
EAI Err*
Temperature sensor exhaust
air
Temperature sensor defective (interrupted or
short-circuited).
Wiring interrupted.
Contact Vaillant Customer Service.
EAO Err
Temperature sensor discharge
air
Temperature sensor defective (interrupted or
short-circuited).
Wiring interrupted.
Contact Vaillant Customer Service.
SAO Err*
Temperature sensor fresh air
Temperature sensor defective (interrupted or
short-circuited).
Wiring interrupted.
Contact Vaillant Customer Service.
SFAN Err
Contact Vaillant Customer Service.
EFAN Err
Contact Vaillant Customer Service.
FILT
Check all filters for soiling.
Time for programmed filter timer expired.
Set the filter timer (in the installer level) to
RESET.
Table 7.2 Error messages on the remote control
* Error message only with installed bypass.
7.2
Resistance Values of the Temperature Sensor
Temperature in
o
C
Resistance in
Ω
-20
95862
-10
54892
0
32510
10
19862
20
12486
25
10000
30
8060
40
5330
Table 7.3 Resistance values of the temperature sensor
7 Troubleshooting
Summary of Contents for recoVAIR/3 SERIES
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