HF Series Generators
T roubleshooting
TR-1005R4
57
ERROR CODE : E25
DESCRIPTION : Battery failure in Battery Powered Generators.
ERROR TYPE : Indicative. Does not allow exposition.
APPLICABLE TO : All Battery Powered Generators.
APPEARS WHEN : At “Prep” in any Battery Powered Generators and at any moment in Generators with Stand-Alone.
INFORMATION / SYMPTOM : Batteries charge level is momentarily low or some batteries are discharged or damaged.
POSIBLE CAUSES
Batteries are discharged.
Some Battery Charger Sector is not working properly or some Batteries are damaged.
ACTIONS
A. PRELIMINARY
E25 appears when the Generator has not been used for a period of time, it usually allows 2 or 3
exposures and then E25 appears.
If this is the case, charge Batteries and perform exposures until the batteries are totally discharged,
then charge again and perform exposures again to discharge, repeat the procedure 5 or 6 times. This
is the way to charge batteries fully and safe.
B. BATTERIES FULLY CHARGED AND “E25” APPEARS
1. Check Corrosion in metal contacts of Batteries.
2. Check charger Leds on Battery Charger. Green Leds and LED DS1 should be ON.
3. Check voltage in J1 of Battery Charger Board: J1-16 & J1-15, J1-14 & J1-13...... , J1-2 & J1-1.
• With Generator OFF and disconnected from Mains, the voltage to be found is: 26.6 VDC.
• With Stand-Alone mode, disconnected the Generator from Mains and with the Generator turned
On, the voltage should be: 25.4 VDC.
G If voltage is not OK, check the batteries status and replace defective batteries if needed
(refer to Section 2.6.2 -- Identifying and Replacing Defective Batteries).
G If total voltage is correct and E25 appears, check the measure circuit.
-- In Generators with Stand-Alone check links between J1-18 (HT Controller) & J3-5
(Stand-Alone), J1-19 (HT Controller) & J3-6 (Stand-Alone), J1-20 (HT Controller) &
J3-7 (Stand-Alone). If links are OK and batteries voltage is OK but signals are below
minimum required (that is --BA TST3 is “0”, BATST2 is “0” and BA TST1 is “1”), check
HT Controller Board and Stand-Alone Board, replace the defective Board found.
-- For Generators without Stand-Alone check that signal -BAT FAUL T at P5-2 of
HT Control Board is at “High Level”.
If -BAT FAULT is at “High Level”, replace HT Controller Board.
If -BAT FAULT is at “Low Level”, check J2-2 in Battery Charger Board. If not “Low
Level” replace cable. If “Low Level“ replace the Battery Charger Board.
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