Why would hot water not go to the bathrooms when it goes every other room in house?

1. Blocked Pipes: Hot water may not reach the bathrooms due to blocked pipes or pipe obstructions caused by mineral buildup, debris, or corrosion. Inspect the pipes and clear any blockages.

2. Faulty Mixing Valve: Check the mixing valve in the bathrooms. If it's malfunctioning or set incorrectly, it may prevent hot water from reaching the fixtures. Adjust or replace the valve as needed.

3. Clogged Showerhead/Faucet: Clogged showerheads or faucets can restrict the flow of hot water. Remove and clean the showerhead or faucet aerators to ensure proper water flow.

4. Low Water Pressure: Inadequate water pressure can affect the flow of hot water to the bathrooms. Check the water pressure at the main water valve or contact your water supplier to investigate.

5. Thermostat Setting: Verify the temperature setting on your water heater. Ensure that it's set to a sufficiently high temperature to provide hot water to all rooms in the house.

6. Incorrect Plumbing: The plumbing configuration may be incorrect, causing the hot water to flow only to certain rooms. Consider hiring a professional plumber to assess and correct the plumbing system if necessary.

7. Zone Valves: In larger houses, some plumbing systems have zone valves that separate water flow to different areas. If present, check that the zone valve controlling the bathrooms is open and functioning properly.