Troubleshooting; Spare Part Li̇st - VENCO VHR Series Installation, Operation, & Maintenance Instruction

step for defrosting. After defrosting, the device will return to its normal run conditions. Under these
circumstances ''AL 01'' will be shown on screen. Commands from the front panel will not run.
When the optional filter sensor detects dirty filters, ''AL 03'' warning will be shown on screen. When this warning
is shown, the device will work properly, however the warning will be shown until filters are cleaned.
When power is on, press the button "
to adjust hour. Press "
press " " or " " to adjust Mon to Sun.
After adjusting the above settings, to adjust timer settings press "
"hh" flash, press "
minute; Press " " till "mm" flashes , press "
and "OFF, andalso"hh" flash, press "
" to adjust minute. The setting method is same for other days.

15. TROUBLESHOOTING

PROBLEM INDICATIONS
NO AIR
FLOW
Motor is not
working
LOW AIR
FLOW
Too much leakage at the
pressure side of system
Too much leakage at the
suction side of system
HIGH AIR
FLOW
Overcurrent of fan motors
16. SPARE PART LİST
2019.10
" for 10s till to display "hh:mm" and "hh" flash, press "
", "mm" flash, press "
" or " " to adjust hour, press "
" or "
Table15.1. Troubleshooting Table
No current
" or " " to adjust minute. Press "
" till to display "MON" and "ON", and also
" till "mm" flashes, press "
" or " " to adjust minute; Press "
" to adjust hour, press "
POSSIBLE REASON
No power
Thermal protection is open
Control panel failure
Pressure loss in the ducts are
higher than calculated
Filters clogged or dirty
Filter doors are not closed or
duct connections are not
completed
Duct connections are
completed
Supply voltage is low
Grills are not installed
", "week" flash,
" or "
" till to display "MON"
", "mm" flash, press "
OTHER REASONS
REMEDIES
Check the power supply
Fan motor cables at the
main controller board are not
tight
Check the socket behind the
the controller
Check the duct design
Clean filter or change it if
necessary
Check the doors and duct
connections.
not
Check the duct connections
Engine is over loaded.
Measure the current taken
by engine.
Install the grills
" or " "
" to adjust
" or "
and
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