Troubleshooting, Error codes Description Solution

Troubleshooting

Any error message can be deleted with a short press of button 4 (OK). The table shows the related description and possible solutions. The next service center should be contacted if a different error message as shown at the table will be displayed.

Error codes	Description	Solution

21	Temporary EEprom problem	Repeat pairing and re-enter the
		customer settings

120	HI alert - Unit Heigt changed	Check laser beam elevation after
		deleting the HI alert
130	Mechanical Limit during Axis	Re-align the closer to the
	Alignment, Grade Match or Spot	alignment point; check if existing
	Match	slope is above +/-25%
131	Rake Angle Limit	Re-align the unit closer to the
		alignment point

140	Laser beam blocked	Make sure there are no
		obstacles between the
		transmitter and the HL750

141	Time Out - Function could not be	Check radio operating range/
	completed in the allowed time	connection; check stable laser
		setup

150	No receiver - Receiver not	Make sure the receiver is on and
	available for single axis	paired
	automatic function
152	No receiver - The laser searched	Check the operating range for
	for the receiver but could not	auto function and restart the auto
	find it	alignment
153	Lost Receiver - The laser	Check the operating range for
	searched and found the receiver	auto function and restart the auto
	but then lost it	alignment
160	X or Y level sensor defect	Contact service center