SECTION 5
SERVICE TECH INFORMATION
5A.TROUBLESHOOTING
AUTOMATIC ELECTRONIC DIAGNOSTICS The face plate computer has a
computer monitors the elec- tronic components and circuits for correct operation. If a malfunction occurs, an error code appears in the face plate display.
The chart below shows the error codes that could appear, and the possible defects for each code.
While an error code appears in the display, all face plate buttons are inoperable except the SELECT button. SELECT remains operational so the service person can make the MANUAL INITIATED ELECTRONIC DIAGNOSTICS (below) to further isolate the defect, and check the water meter.
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| POSSIBLE DEFECT | |||
CODE | MOST LIKELY |
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| LESS LIKELY | |
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Err1 | motor inop. / wiring harness or connection to switch / position switch / face plate | ||||
Err2 | face plate |
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Err3 | motor / face plate | See face plate replacement on |
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| page 22. |
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Err4 | face plate / position switch |
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Err5 | face plate |
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PROCEDURE FOR REMOVING ERROR CODE FROM FACE PLATE: 1. Unplug transformer 2. Correct defect 3. Plug in transformer 4. Wait for 6 minutes. The error code will return if the defect was not corrected.
MANUAL INITIATED ELECTRONICS DIAG- NOSTICS
1.To enter diagnostics¼
You will see 1 of the following displays.
All of the preceeding displays show what position the valve is in, if the turbine is operating, and the position switch open or closed status.
2.Press the
POSITION SWITCH STATUS: WIth the valve in service, or any of the recharge cycles, the switch
indicator will show open 
. While the valve is rotating from 1 position to another, the indicator
will show the switch closed 
. A defect is probable if indications vary from this pattern.
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