Water Heaters - Tankless Aquastar-no hot water to kitchen sink only

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amyvigeant
05-27-08, 02:15 PM
I have a Grohe Ladylux Plus as our kitchen faucet and an Aquastar tankless water heater. I noticed yesterday that the spray-flow button on the hand nozzle would not remain on when the button is released, and now we are getting no hot water to the kitchen faucet only (the rest of the house is fine with hot water). I'm assuming it's a water-pressure issue since the tankless water heater needs a certain amount of water pressure to activate. We are currently getting about 1/4 GPM out of the faucet. I've taken apart and cleaned the strainer and spray on the handheld part, no change, though.

Any advice? Thanks so much in advance!