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Before investigating any specific electrical problem,
always check:
• The connection between the panel harness and panel
loom. It must be clean, dry and secured with a cable
tie.
• The start battery is connected to the correct terminal
on the starter motor.
• The domestic battery is switched on and connected
to the correct terminals for the secondary domestic
battery charging alternator.
• The battery connections and inspect the condition of
cables from the battery to engine. If in doubt measure
the voltage at the engine.
• If there is a starter alternator charge problem, measure
battery voltage with engine off and again with engine
running, if there is an increase the alternator is
functioning correctly.
ELECTRICAL TROUBLE SHOOTING - ALL CONTROL PANELS
{
Problem Possible Cause and Solution
No warning lights or buzzer functioning, engine will not • Battery isolation switch in off position - switch on.
start or stop • Starter battery discharged - charge.
• Engine fuse blown - check fuse (above starter motor or
flywheel housing) and replace if necessary.
• Check for wiring faults.
Non function of warning light. The water temperature • Disconnect switch wire to non-functioning light: green/
light will not function unless engine is overheating blue –water temperature, white/brown –oil pressure,
or there is a wiring fault brown/yellow –alternator charge. Reconnect wire
temporarily to another warning light that is functioning;
if wire switches light on replace faulty light.
• Disconnect positive feed to non-functioning light.
Reconnect temporarily with wire from another warning
light that is functioning, if wire switches light on rewire
with new connection.
• If none of the above, check continuity of connections
from panel to the engine.
Water temperature warning light on when engine is not If engine is cold:
over temperature (Not B or C deluxe panel see table on • Faulty wiring, check connection and continuity (small
on following page) green/blue) from switch to panel light. Ensure this
connection is not shorting to earth (ground).
• Faulty temperature switch - if light switches off on
If engine is warm:
• Switch wire connected to large sender terminal of
switch/sender unit. Remove and refit to smaller
(switch) terminal.
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