Beta Marine Beta 14 Installation Manual page 73

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
Oil pressure warning light not functioning, oil pressure
gauge showing maximum deflection. Engine off and
keyswitch in run position
Oil pressure gauge showing no movement - even when
engine is started. Warning light functioning correctly
oil pressure showing no movement, warning light not
functioning correctly
Oil pressure showing normal operating pressure
(0.75 - 5 bar). Buzzer sounding and light illuminated.
Water temperature gauge showing 120°C/250°F.
This also applies to the B Panel with Murphy gauge
Water temperature gauge showing normal operating
temperature (85°C). Buzzer sounding and light illuminated.
This also applies to the B Panel with Murphy gauge
Water temperature gauge showing no movement,
light not illuminated, engine warm.
This also applies to the B Panel with Murphy gauge
Possible Cause and Solution
• Faulty wiring - check wire connection and continuity
(small white/brown) from sender to panel light.
• Ensure this connection is not shorting to earth (ground).
• Faulty wiring - check oil pressure sender wire (small
white/brown) is connected.
• Check connection to oil pressure gauge, if plug is not
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.
Engine warm:
• Incorrectly calibrated switching point for warning light,
adjust on rear of gauge to 0.5 bar (minimum adjustment
on gauge).
• If adjusted correctly and buzzer still sounding, faulty
switch gauge unit - replace.
Engine cold/cool:
• Faulty wiring, check water temperature sender wire is
not shorting to earth (ground).
• Faulty sender unit, - check resistance to earth, approx.
3.5k Ω (cold) – 0.5k Ω (warm). Replace if notably less.
Engine warm:
• Incorrectly calibrated switching point for warning
light adjust on rear of gauge to 100°C/210°F.
• If adjusted correctly and buzzer still sounding,
faulty switch gauge unit - replace.
• Check connection to sender, if disconnected gauge
will not function.
• Check connection to temperature gauge, if plug is
not connected to socket on rear of gauge reconnect.
If all connections are correctly made, faulty sender
unit - check resistance to earth, approx. 3.5k Ω
(cold) - 0.5k Ω (warm). Replace if no reading.
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