Honda WB3OX Owner's Manual page 27

When the pump does not pump water;
1. Is the pump fully primed?
2. Is the strainer clogged?
3. Are the hose bands installed securely?
4. Are the hoses damaged?
5. Is the suction head too high?
6. If the pump still does not pump the water, take the pump to an authorized
Honda water pump dealer.
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