The apartment or building hot-water system may be unavailable
Cold water from every hot tap suggests a unit heater, central system, utility, or building control problem rather than one faucet.
Why this result fits
- Multiple hot-water fixtures are affected.
- Cold water still flows normally.
- There is no gas, electrical, or active leak warning.
What to do now
Check another hot fixture briefly
Confirm the pattern without wasting water or repeatedly testing.
Ask whether the outage is known
Check official building notices or the maintenance portal rather than entering utility rooms.
Record timing
Note when hot water last worked, whether it is intermittent, and whether neighbors report the same issue.
Contact maintenance promptly
Report whether every fixture is affected and whether water is fully cold or only lukewarm.
Stop and escalate if
- A gas, burning, or electrical odor appears.
- Water becomes dangerously hot or temperature swings abruptly.
- A leak develops near a heater, riser, or fixture.
What not to do
- Do not access a boiler, water-heater cabinet, utility room, breaker, or pilot.
- Do not use an oven or improvised appliance to heat the apartment.
- Do not leave hot taps running while waiting.
Message you can send to maintenance
There is no hot water at [all listed fixtures] as of [time]. Cold water flows normally. The water is [cold/lukewarm/intermittent], and there are no gas, electrical, or leak warnings.
Help prevent a repeat
- Report intermittent hot water before a complete outage.
- Keep outage notices and maintenance reference numbers.
If this does not match
Sources and review date
- Home Maintenance — U.S. Environmental Protection Agency WaterSense
Content last reviewed: under the Apartmentwise methodology.