TIPS & TROUBLESHOOTING
Chapter 4
TIPS & TROUBLESHOOTING
Power-On Self tests:
When the tester is powered on, a number of messages can possibly
appear as the Tester performs safety tests on itself and the mains
power supply.
If a voltage greater than 30V is detected on the neutral input line or
the earth is missing then the following message will be displayed.
Check for incorrect wiring on supply.
The next test will check for an earth connection. If there is no Earth
connection, the following message will appear.
Check for incorrect wiring on supply.
--------------------WARNING--------------------
THE SELECTED TESTCODES SPECIFY
THAT A FLASH TEST SHOULD BE
PERFORMED.
THIS IS NOT POSSIBLE ON THE KT77.
THE FLASH TEST WILL BE SKIPPED.
PRESS THE START KEY TO CONTINUE.
The Tester will fail the earth check if it is being supplied with a balanced
supply (e.g. isolating transformer) since it will detect phase voltage on both
L and N supply connections. Only continue if certain that the supply is
balanced and the earth on the Tester connection is secure.
If all the above is checked OK then the Kewtech KT77 may be faulty.
Contact your Kewtech Agent for repair.
The unit then completes an internal check. If any faults are found then the
following message will be displayed:-
SEQUENCE WARNING FAULTS
--------------------WARNING--------------------
INTERNAL RELAY FAULT.
CANNOT PROCEED.
If this message is displayed then the Kewtech KT77 is faulty and should be
returned to you Kewtech Agent for Repair
Sequence Warning Faults
If you enter a testcode which includes tests the Kewtech KT77 cannot
perform then you may see one of the following warnings.
--------------------WARNING--------------------
POSSIBLE DISCONNECTED, FLOATING
OR ISOLATED EARTH.
CHECK INPUT EARTH BEFORE
PROCEEDING.
PROCEED ONLY IF YOU KNOW THE
INPUT EARTH IS ISOLATED.
PROCEEDING WITH AN INCORRECT
EARTH MAY GIVE INCORRECT TEST
RESULTS.
--------------------WARNING--------------------
LIVE AND NEUTRAL REVERSED.
PRESS ANY KEY TO CONTINUE
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