Haulotte: Activ'Screen (HA/HT RTJ, PRO) and ZAPI controllers (Compact, Optimum)
Haulotte error code F07.03 — Boom Angle — SQ520
Message on the display: Boom Angle — SQ520
blocking fault
Failure of voltage of SQ520 sensor, above [6.0V] : possibly short circuit to UBAT, or 5V_REF output supply voltage is failing. --> VAR[BoomSensorFailure]=1 Check SQ520 voltage value. Check short circuit between signal and 12 V or 5VREF and 12 V Check sensor's power supply is 5VREF.
Description from the Haulotte service manual, in the original wording.
Possible causes
The manual does not list the causes for this code: the service technician establishes them during diagnosis of the machine.
What you can do
Switch the machine off with the emergency stop and switch it on again. If the code comes back, do not use the machine and call service.
What service does
A qualified service technician reads the code with the manufacturer's diagnostic tools, finds the cause, clears the code and carries out a function test.
Source: Haulotte Maintenance Book HA16 RTJ / RTJ O / RTJ PRO (4000865070) and Compact 8–14 (4001181580, ZAPI alarms).
The descriptions are quoted from the manufacturer's service documentation and are for guidance only. Clearing codes, calibrations and repairs are carried out by a qualified service technician according to the manual for the specific serial number. A machine with an active blocking code must not be used until the cause has been removed.
Does code F07.03 not go away?
RK Rental services Haulotte lifts at our workshop or on site at the customer's premises (construction site, factory, warehouse). We read the code, remove the cause and select the parts by serial number.
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