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Topvex TR03-06
Operation and Maintenance instructions
205353
Systemair AB
13
Troubleshooting
Should problems occur, please check or correct the following before contacting your service representative.
Always check if there are any alarms active in the control panel.
1. Fan(s) do not start
A.)
Check that the fuses are not defect.
B.)
Check the settings in the control panel (times, week schedule, auto, manual operating etc.).
C.)
Check if there are any alarm messages.
2. Reduced airflow
A.)
Check the settings of Medium and Low fan speed.
B.)
Check that the Outdoor/Exhaust air damper, if used, opens.
C.)
Change of filters required?
D.)
Cleaning of diffusers/louvers required?
E.)
Cleaning of fans/exchanger block required?
F.)
Is roof unit/air intake clogged?
G.)
Duct system. Check visible duct runs for damage and/or build-up of dust/pollution.
H.)
Check diffuser/louver openings.
3. Cold supply air
A.)
Check control temperature on the control panel.
B.)
Check if overheating thermostat is alert. If necessary, reset by pressing the red button, marked
RESET, on top of the connection box (pos.9 in fig. 1).
C.)
Check if the extract filter must be changed.
D.)
Check that the heat exchanger is rotating.
E.)
Check if the fan thermo contact has tripped, shows as
Fan alarm
in the control panel. If necessary,
reset it (see page 3
Alarms).
4. Noise/vibrations
A.)
Clean fan impellers.
B.)
Pull the fans out and check that the 2 screws holding the fans are tightened.
