Global garden products TH4X 102, Workshop Manual

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102 - 122
7.1 .
0
- GUIDE TO THE IDENTIFICATION OF
PROBLEMS IN THE ELECTRICAL SYSTEM
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WORKSHOP MANUAL
page
3/2002
7.1 GUIDE TO THE IDENTIFICATION OF PROBLEMS IN THE ELECTRICAL
SYSTEM
In the following some of the problems connected to the malfunctioning of the electrical
system are shown, with their probable cause and the remedial action to be taken.
Should the problem continue after the appropriate checks, seek assistance from your
local Service Centre.
Faulty electronic cards must always be replaced without trying to repair them or
replace single components.
START
ON
OFF
1)
The cutting in of the self-resetting protection of the electronic card is signalled by a beep, except in cases where the battery
is missing, flat or with the terminal crossed. The signal stops when the key is returned to position «OFF»; then wait a few sec-
onds before returning to position «ON».
PROBLEM CAUSE REMEDY
2. The dashboard remains off
with the key in position
«ON»
The battery is not supplying the card Check the connection cables
Battery or card not earthed to frame Check and put right
6.3 A fuse blown Replace fuse (6.3 A - delayed)
Battery terminal crossed Check connections. WARNING! Immediately
remove the key to avoid irreparably damaging
the card, which would no longer be usable
even if the terminal was put right!
Check the battery’s condition [see 7.10]
b) ... in position «START» or
after a few seconds use: Sulphated battery (it no longer accepts
recharging) Replace the battery
Flat battery Recharge the battery [see 7.10]
Faulty or wet electronic card Check and dry with low pressure tepid air
(hair-dryer)
Disconnected or missing battery Reconnect the battery. It must always be con-
nected.
Battery terminals corroded or with poor
contact Check and clean the connections
c) ... after several minutes’
use: Poor or missing earth contact on the
charge regulator Check the earth connections and the screws
fastening the regulator
Overvoltage from a malfunction in the
regulator Check the recharge circuit [see 7.9]
Battery disconnected or faulty during
use Check the battery or wiring
1. Activation of the self-
resetting protection
1)
....
a) .... on inserting the key
in position «ON» Battery terminal crossed Check the battery connections
Short circuit to earth Check connectors, wiring and microswitches
<= ... RET ... <=