# Motor Connector Tightness Check

#### Symptoms

* Motor does not move at all
* Door does not open or close when commanded
* Motor can be heard engaging but produces no motion
* Intermittent operation after handling or transport

#### Cause

The motor is **not tightened enough**.\
If the motor mounting hardware is too loose, the motor shaft does not stay properly aligned under load. This prevents effective torque transfer and can cause the motor to slip or fail to engage.

<figure><img src="/files/bGTC9J2gS3NvIet4GQYb" alt=""><figcaption></figcaption></figure>

#### Correct Gap Specification

The motor must be tightened to leave a small, controlled gap.

* **Required gap:** approximately **0.15 to 0.20 inches**
* Less than this can cause motor electronics not to connect properly
* More than this usually means the motor is too loose

A gap larger than 0.20 inches is a common cause of the motor not operating.

#### How to Check

1. Inspect the motor mounting location.
2. Verify the motor is not loose or able to shift by hand.
3. Measure the gap between the motor and the mounting surface.
4. Confirm the gap is within the 0.15 to 0.20 inch range.

#### How to Fix

1. Tighten the motor mounting hardware gradually.
2. Stop tightening once the gap is within 0.15 to 0.20 inches.
3. Ensure the motor is firmly secured and cannot move under hand pressure.
4. Do not overtighten past this range.

#### After Adjustment

After tightening the motor and setting the correct gap, try controlling the door once again

If the motor still does not operate after this adjustment, disconnect and reconnect the motor connector and repeat the steps.

<figure><img src="/files/X9wOnq05yMPhUlbE8tof" alt="" width="375"><figcaption></figcaption></figure>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.ocutrap.com/troubleshooting/motor-connector-tightness-check.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.