48
Problem
Possible Cause and Solution
Domestic charge light not functioning, buzzer remains
• Domestic battery not connected.
on with engine running
• Domestic battery not connected correctly:
B+ to domestic isolation block on starboard rail
(port on 75 - 115T) and B- to engine earth (ground).
• Domestic battery flat.
• Panel relay faulty/incorrectly wired: Check voltage at
relay terminal 86, white wire is positive feed for
warning light from AC position of keyswitch.
Domestic charge light not functioning, buzzer switching
• No second alternator fitted to engine, domestic light
off with engine running.
This light will only function
not used.
if a second alternator is fitted to the engine
• D+ (charge indication) light connection at rear of
alternator not connected.
• Two way plug and socket disconnected between
engine harness and panel loom.
ELECTRICAL TROUBLE SHOOTING - B, BW, C AND CW CONTROL PANELS
{
In addition to the fault finding detailed on the previous pages, the following is specific for control panels as listed above.
Problem
Possible Cause and Solution
Oil pressure warning light not functioning, oil pressure
• Faulty wiring - check wire connection and continuity
gauge showing maximum deflection. Engine off and
(small white/brown) from sender to panel light.
keyswitch in run position
• Ensure this connection is not shorting to earth (ground).
Oil pressure gauge showing no movement - even when
• Faulty wiring - check oil pressure sender wire (small
engine is started. Warning light functioning correctly
white/brown) is connected.
oil pressure showing no movement, warning light not
• Check connection to oil pressure gauge, if plug is not
functioning correctly
connected to socket on rear of gauge, reconnect.
• If all connections are correctly made, possible faulty
sender unit - check resistance to earth, approx. 50
Ω
.
Replace if no reading or short-circuited.
• If adjusted correctly and buzzer still sounding, possible
faulty switch gauge unit -
replace.
Summary of Contents for Beta 30
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