---
title: Why isn't the blower fan motor running on my CMAXX Dust & Fume Collector?
description: There are a handful of reasons that your blower fan motor may not be running. Let's break them down.
---

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# Why isn't the blower fan motor running on my CMAXX Dust & Fume Collector?

## There are a handful of reasons that your blower fan motor may not be running. Let's break them down.

### My blower fan motor is not starting.

- **Improper motor wire size** - Rewire using the correct wire gauges as specified by national and local codes.
- **Motor not wired properly** - See motor manufacturer's wiring diagram. Check and correct motor wiring for the supply voltage present. Follow wiring diagram and the National Electric Code.
- **Motor not wired for available voltage** - Check the power supply to the motor circuit on all leads.
- **Input circuit down** - Check the power supply to the motor circuit on all leads.
- **Electrical supply circuit down** - check the power supply circuit for proper voltage. Check for any fuse or circuit breaker fault.

### My blower fan motor starts, but does not stay running.

- **Incorrect motor-starter installed** - Check for the proper motor starter and replace if necessary.
- **Blower fan damper control not adjusted properly** - Check airflow in duct. Adjust damper control until proper airflow is achieved and the blower motor's amp draw is within the manufacturer's rated amps.
- **Electrical circuit overload** - Check that power supply circuit has sufficient power to run all the equipment.

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    - [Medium Pressure Baghouse](https://kb.isystemsweb.com/knowledge/brf-baghouse-dust-collector?hsLang=en#medium-pressure-baghouse)
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- [Air-Port Fume Exhaust Hood](https://kb.isystemsweb.com/knowledge/air-port-fume-exhaust-hood?hsLang=en)
- [Dust Collector Cartridge Filters](https://kb.isystemsweb.com/knowledge/dust-collector-cartridge-filters?hsLang=en)

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