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MAN - RTFO - REV: Org | G. Troubleshooting
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5. With the door open, place a piece of metal on the proximity switch. This will mimic the properties of the closed
RTFO door. The carousel should begin to rotate.
6. If the carousel begins to rotate when the metal is placed against the door proximity switch, you may need to adjust
the proximity switch. Remove the side panel of the unit and loosen the nut on the back side of the door proximity
switch bracket (Sec. G.3, Fig. G.4).
7. Unplug the cable from the door proximity switch to allow it to move, and adjust the switch by moving it in or out as
needed. Once the door proximity switch is properly adjusted, re-tighten the nut and plug the cable back in.
8. If the carousel still will not rotate, contact the ATS Service Department at +1-724-283-1212.
G.4 Fan Motor Will Not Rotate
When the unit is powered on and the RTFO door is closed, the fan should rotate continuously in a counter clockwise
direction as viewed from above.
WARNING: Place Main Power Switch in ‘OFF’ position and disconnect power before removing
side cover to access electrical panel and fuses.
WARNING: The fan should not rotate when the door is open. If the fan continues to operate when
the door is open, contact the ATS service department.
1. If the fan does not rotate you will need to check the fan fuses (fuse #1 and #2). Remove the side panel and refer to
(Sec. C.2, Fig. C.4) for location.
2. Remove and inspect the fuses, if a fuse is defective, replace it with a new fuse of the correct type and rating then
check for fan operation. If you replace the fuses and the fan still does not turn, contact the ATS service department at
+1-724-283-1212.
G.5 Unit Has No Airflow
1. Verify that the supply air connection is secure in the rear of the machine, and that the air flow is set to the specified
setting on the Settings Screen.
WARNING: Place Main Power Switch in ‘OFF’ position and disconnect power before removing
side cover to access electrical panel and fuses.
2. If the air flow is set at the appropriate setting but the unit still has no air flow, you will need to remove the side panel
and check the air regulator. Refer to (Sec. C.2) for location.
3. Verify that the air regulator is set at 22-25 PSI. If it is not, adjust as needed.