Troubleshooting - Sym MAXSYM 400i Service Manual

Troubleshooting

The engine temperature is too high

The water thermometer and the temperature sensor do not work properly.
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The thermostat is stuck to close.
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Insufficient coolant.
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The water hose and jacket are clogged.
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Fan motor malfunction.
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The malfunction of the radiator filler cap.
The engine temperature is too low

The malfunction of the water thermometer and the temperature sensor.
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The thermostat is stuck to open.
Coolant is leaking
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The water pump mechanical seal does not function properly.
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The O ring is deteriorated.
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The water hose is broken or aged.
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12. Cooling System
12-3