If it's a kitchen or lav faucet, unscrew the aerator and clean or replace it. A kitchen faucet could have the diverter jammed with debris. Look on line to see how to remove the handle and spout to clean it. If it's a shower valve, just replace cartridge.
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If it's a kitchen or lav faucet, unscrew the aerator and clean or replace it. A kitchen faucet could have the diverter jammed with debris. Look on line to see how to remove the handle and spout to clean it. If it's a shower valve, just replace cartridge.