MONTGOMERY BOATS 340 SPORT YACHT, Owner'S Manual, Page: 147 / 191

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MONTEREY
BOATS
Troubleshooting Guide
PROBLEM
CAUSE AND SOLUTION
ACCESSORY PROBLEMS
Reduction in water flow from the bilge
pump.
The automatic float switch on the bilge pump
raises but does not activate the pump.
The bilge pump will not run when the manual
switch is activated.
The refrigerator compressor runs frequently
and the house battery life seems shorter
than it should be whenever the refrigerator
is operating on DC power.
•
Impeller screen plugged with debris. Clean screen
at the base of the pump.
• The discharge hose is pinched or clogged. Check
discharge hose and clean or repair.
• Discharge hose is sagging below the pump and
creating an airlock. Reroute hose so it runs uphill
from the pump to the thru-hull fitting.
• Low voltage to the pump. Check the battery and wire
connections.
• The circuit breaker near the battery switch has blown.
Reset the circuit breaker.
• The battery is dead. Charge or replace the battery.
• The pump impeller is jammed by debris. Clean pump
impeller housing.
• The wire connections in the bilge have corroded.
Replace connectors and secure above the bilge
waterline.
• The automatic switch is defective. Replace the
switch.
• The pump is defective. Replace pump.
• The circuit breaker supplying the switch has tripped.
Replace or reset the circuit breaker.
• The battery switch is off. Turn on the battery switch
and bilge pump breaker.
• The pump impeller is jammed by debris. Clean pump
impeller housing.
• The wire connections in the bilge have corroded.
Replace connectors and secure above the bilge
waterline.
• The switch is defective. Replace the switch.
• The pump is defective. Replace pump.
• The thermostat in the refrigerator is set too cold.
Check the temperature in the refrigerator and set the
thermostat to a warmer setting if possible.
• The door gasket is dirty or moldy and not sealing
properly. Clean or replace the door seal.
• The battery is weak and not providing the proper
voltage to the refrigerator compressor. Replace the
battery.
• The refrigerator is defective. Replace the
refrigerator.