User`s manual

TROUBLESHOOTING

..WARNING!!!..

Check to make sure all power sources are disconnected

before starting any troubleshooting. Safety gloves and glasses

should be worn when working on the unit. Serious injury or death

may occur if safety precautions are not followed.

RA77/RA77B Series

Light issue (All not

turning on)

1. LED lights may need to be changed.

2. New Transformer replacement is required.

Halogen/LED light issue

1. Check all wiring to and from the unit.

2. LED may require new fixture or transformer.

Light issue (One light

not turning on)

1. Replace defective fixture.

Speed indicator not

showing speed levels

1. Complete control switch replacement is required.

Burnt/melted control

switch

1. Complete Control switch replacement is required.

Speed levels not

working correctly

1. Check all wiring to and from the unit.

2. Complete control switch replacement is required.

Unit lacking smoke

intake

1. Check ducting for foreign object.

2. Ensure the ducting is properly sealed.

3. Clean filters to increase airflow.

Unit showing no power

indication

1. Make sure the power source is working properly.

2. All wiring is connected.

Unit making humming

noise

1. Replace defective capacitor with new one.