Vutec LECTRIC IV - Installation Instructions - Manual (Page 12)

11
04/21/08 Rev D
LIIe-INST_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- Defective 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 lim it 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- Defective 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- Defective 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