The ATL-500/800 performs a self-test each time it is switched on. If an error occurs during the self-test, the display will indicate an abbreviation of the error. If an error occurs during a process, the LCD display will alternately display an error indication number.

No.--Indication --Cause –Remedy

1. WATERJACKET PUMP Water jacket pump defective. Needs to be replaced, inform service department.
2. RINSE WATER PUMP Rinse water pump defective. Needs to be replaced. Inform service department.
3. AIR DISTRIBUTOR Air distributor defective. Inform service department.
4. DRUM NOT RAISED Lift arm defective. Inform service department.
5. WATERJAC. SENSOR Water-jacket sensor needs to be replaced. Inform service department.
6. RINSE WATER SENS Rinse water sensor defective Needs to be replaced, Inform service department.
7. CHEMISTRY SENSOR Chemistry sensor defective Needs to be replaced, Inform service department.
8. WATER SUPPLY? No water entering the processor. Open water tap.

• CHEMDISTRIB Used chemistry distribution error: If the self-test shows an error in the distribution of used chemistry, the self-test procedure will be interrupted, and the error indicated on the LCD. The user, however, has the option of ignoring the error by pressing ¿ (Enter). The self-test will then continue, and processing can take place. If this happens, used chemistry may not be routed to the correct disposal drains.

• Water jacket empties slowly during processing. Either the drain valve has become dirty or the lift arm is constantly pressing on the valve lever. Here’s how the valve works: The overflow valve (at the right side in the unit) is pressed on the bottom of the unit by means of a spring. In case this overflow valve, which is a tube, gets out of position, the seal will leak. Remedy: Agitate the valve lever so that dirt in the valve area is cleaned away. In case the lift arm is out of position, select SET menu (see section 6.4); options; adjust the lift arm and follow the next paragraph.

• Loss of original calibration in the electronics. (The battery has lost power, or p.c. board was exchanged) The ATL-500/800 automatically recalibrates itself during the self-test. Part of this recalibration is to determine the distance between lift arm and overflow tube support. When this is 2 - 4 mm, it is correct. If the distance is not correct, the operator can adjust this setting by using the "Up Arrow" or "Down Arrow" keys.