Haulotte HT26 RT O, HT28 RTJ O, HT28 RTJ PRO
Haulotte error code F07.11 — Telescope Length
Message on the display: Telescope Length
Code F07.11 occurs in machines: Haulotte HT26 RT O, HT26 RT O SW, HT28 RTJ O, HT28 RTJ O SW, HT28 RTJ PRO.
blocking fault
*These failures are present only on dual load machine. See Boom Length for more details. To erase the failure it is necessary to completely fold the machine and to restart it [case 1] b0 Incoherence between SQ533 and SQ532 : There is a change of state of SQ533 whereas SQ532=0 [case 2] b1 Incoherence between SQ533 and SQ532 : During a telescope in movement, SQ532 goes from 1 to 0 whereas SQ533=0 [case 4] b2 Incoherence between SQ533 and SQ532 : During a telescope out movement, SQ532 goes from 1 to 0 whereas SQ533=1 [case 8] b3 Incoherence between SQ530 and SQ532 : Both sensors are seen at one whereas it is mechanically impossible [case 16] b4 Incoherence between SQ531 and SQ532 : Both sensors are seen at one whereas it is mechanically impossible [case 32] b5 Short circuit of the 5 V supply or of the SQ533 (SQ520>7V) [case 64] b6 Short circuit of the 5 V supply or of the SQ530 (SQ530>7V)
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 HT28 RTJ (4001005000), fault codes chapter.
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 F07.11 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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