11
VUTEC CORPORATION
www.vutec.com
TEL: (954)-545-9006
FAX: (954)-545-9011
EMAIL: [email protected]
02/20/08 – 06/10 Rev. D
2-INSTL_D
TROUBLESHOOTING
SYMPTOM
CAUSE
SOLUTION
Door remains closed and screen will not
come down.
Motor does not hum
.
Motor hums.
a- Check breaker fuse.
b- Check wall switch.
c- Push button limit switches might be
tripped.
d- Thermal overload tripped.
e- Defect4 motor or wall switch.
f- Temporary binding.
g- Capacitor burned out.
a- Replace blown fuse.
b- Check wall switch connections.
Bypassing wall switch as a test.
c- Manually open trap door. See Electrical
to reset push button limit switch. Reset
Yellow button for lower limit.
d- Let motor cool down for 15 minutes.
e- Replace motor or wall switch.
f- Manually open trap door check for
binding.
g- Replace motor.
Screen will not go up.
Motor does not hum.
Motor hums.
a- Check breaker fuse.
b- Check wall switch.
c- Push button limit switches might be
tripped.
d- Thermal overload tripped.
e- Defect4 motor or wall switch.
f- Temporary binding.
g- Capacitor burned out.
a- Replace blown fuse.
b- Check wall switch connections.
Bypassing wall switch as a test.
c- See Electrical to reset push button limit
switch. Reset White button for upper
limit.
d- Let motor cool down for 15 minutes.
e- Replace motor or wall switch.
f- Check for binding of roller assembly.
g- Replace motor.
Coasting.
a- Defect4 brake.
a- Replace motor.
Trap door closed and motor hums.
Trap door not quite closed but motor stop.
a- Check Door Close Limit (DCL) switch
a- Adjust DCL switch by moving it up or
down.
Noisy operations.
a- Cyclic noise (squeaky) pattern.
b- Gear noise
a- Lubricate roller shaft and bearing at Idler
bracket with typical oil.
b- Replace motor.
ACCESSORIES INCLUDED
1
SPDT DECORA SWITCH
1
SWITCH COVER PLATE
4 MOUNTING
BRACKET
8
1/4-20 X 1” LONG HEX HEAD BOLT
8
HELICAL LOCK WASHER FOR 1/4 BOLT
8
1/4-20 HEX NUT
