Question about Noritz 6.3 Gallon Residential Tankless Water Heater - N-063S
Try flowing more hot water with your shower. During the summer you end up mixing alot of cold water and very little hot water (because your cold ground water isn't so cold in the summer). When you get close the minimum flow rate of the appliance, it will start to short cycle (fire on and off). Here's some recommended things you can do:
1) Clean the shower head - remove scale deposits and or clogging
2) Widden flow restrictor - most shower heads have a flow restrictor on the back of the showerhead; It consists of a rubber washer with a hole in the center. You can widen the hole using a drill bit.
3) remove the flow restrictor - this should be a last resort
Posted on Aug 01, 2010
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Posted on Jan 02, 2017
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