5 | Troubleshooting |
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| This chapter provides solutions for some of the | |
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| problems you may encounter while using the DEU. | |
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Symptom | Reason | Solution | |
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Fails to power on. | Power cord not connected properly. | Verify that the power cord is properly | |
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| connected to the power module. |
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| Power not available at the outlet. | If the DEU is plugged into a |
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| grounded outlet, verify if power to the |
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| outlet has been interrupted. This can be |
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| accomplished by testing the outlet with a |
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| known working appliance, like a lamp. |
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| Power switch not in the proper | Be sure that the power switch is in the |
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| position. | |
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| “ON” position, labeled “I”. | |
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| Faulty fuse. | Replace fuse, see Replacing a Fuse |
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| described earlier in this guide. |
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| Faulty power cord. | Replace power cord. |
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| If the DEU is not responding, |
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| contact your service provider. |
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Operator Control Panel | Possible component failure. | From the Operator Control Panel, | |
display indicates |
| “Hardware Menu” from the Main Menu | |
“Hardware Error.” |
| and select “Component Status.” Scroll | |
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| down through the list to locate the failed |
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| component. Follow the procedures in |
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| the Maintenance chapter to replace the |
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| failed component. |
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LED and audible alarms | From the Operator Control Panel, | ||
indicate the system |
| “Hardware Menu” from the Main Menu | |
failed the diagnostic |
| and select “POST Results.” Scroll down | |
test. |
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| through the list to locate the failed |
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| component, see |
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| Diagnostics described earlier in this |
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| guide. |
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LED Status | Reason | Solution |
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Operator Control Panel | Cooling fan failure. | From the Operator Control Panel, |
display indicates |
| “Hardware Menu” from the Main Menu |
cabinet temperature |
| and select “Component Status.” Scroll |
threshold has been |
| down through the list to locate the failed |
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