State Hot Side Flow Restriction

State water heater: low hot water pressure or flow compared to cold.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Scaled or clogged hot outlet, Debris in heat trap nipples, Partially closed hot shutoff valve, Clogged mixing valve

Safety: Turn off water supply and relieve pressure before disconnecting piping.

Check valves: Ensure the hot outlet valve is fully open.
Clean aerators: Remove and clean faucet aerators and showerheads.
Inspect heat traps: Remove hot and cold heat trap nipples and check for debris or collapsed inserts. Replace if restricted.
Service mixing valve: Clean or replace a clogged thermostatic mixing valve.

Medium 3/5

Heat Trap Nipples

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