Dryer Booster Installation and Operation Manual

6
Prior to performing Steps 1 - 2, be certain that the electrical supply to the fan/switch is turned off.
If fan fails to start when the dryer cycle begins, please follow the procedure listed below:
1. Check the incoming supply for proper voltage.
2. Verify that the pressure switch diaphragm is vertical as shown in Illustration 2 of these instructions. If the diaphragm is not vertical, reposition
the pressure switch by turning (rotating) the fan and check for fan operation against another dryer cycle.
3. Verify that the tubing is not crimped and that the tubing connector nipples are not obstructed.
4. If switch diaphragm is vertical and fan still fails to start, with the electrical supply on, remove the tubing from the grommet on the duct and blow
gently into the tubing. Consult Illustration 4 to alter sensitivity.
5. If fan fails to start, please consult Fantech for additional technical support.
Troubleshooting