TROUBLESHOOTING
9
SYMPTOM
3. “Down” limit switch incorrect.
4. Noise.
NOTE: Screen will operate with a low-
pitched hum.
5. Coasting.
6. Roller displaced from mounting
bracket.
7. Fabric hangs crooked.
CAUSE
(a) “Down” limit switch out of
adjustment.
(a) Buzzing noise.
(b) Gear noise.
(a) Defective brake.
(a) Pin end slipped out of nylon bearing.
(a) Screen not installed properly.
(b) Fabric is damaged.
SOLUTION
(a) See installation instructions.
(a) Adjust door limit switch (too far
down).
(b) Replace motor assembly.
(a) Replace motor assembly.
(a) Realign pin end bracket.
(a) Check for level and plumb.
(b) Replace fabric.
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