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Thermo Fisher Scientific
User Guide STP420D/STP420ES
4-4 rotation Error
The level sensors in the rotary chamber help to detect rotation errors
by checking whether the reagent in the chamber are in motion or not.
If the basket holder is not rotating, an error message appears:
“Rotation
program: Basket rotation error at step x”
.
1. Touch
OK
to acknowledge this.
2. Check that the rotation chamber works correctly, by visually
inspecting the rotation of the basket holder and observing it
through the glass window of the chamber lid:
• If the basket holder is rotating, press
Yes
. The chamber unlocks.
Open the lid, clean the level sensors (see Section 5-1), then
reclose the lid.
Press
Continue
to continue the program.
• If the basket holder is not rotating, press
No
.
If you can see the cause of the blockage (for example, an open
or misaligned basket, or loose screen), press
Yes
to open the
chamber, fix the problem and press
Continue
.
If you cannot see the cause of the blockage press
No
to stop
the current protocol. In such a case, please contact Customer
Service.
troubleshooting and Errors
Rotation Error
