9 troubleshooting – Klimaire KTHM015-E5H2 PTAC Service Manual User Manual
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9 Troubleshooting
In general, possible trouble is classified in three kinds. One is called Starting Failure which is
caused from an electrical defect, another is ineffective Air Conditioning caused by a defect in the
refrigeration circuit and improper application, and the other is called the Structure Damage.
POSSIBLE CAUSES
Solution
UNIT DOES NOT START
Unit may have become unplugged
Fuse may have blown
Circuit breaker may have been tripped
Unit may be off
Unit may be in a protection mode.
Check that plug is plugged securely in wall receptacle.
Note: Plug has a test/reset button on it. Make sure that the plug has
not tripped.
Replace the fuse. See Note 1.
Reset circuit breaker. See Note 1.
Turn unit on (bottom right button on keypad).