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Water heater is running all the time |
 When you
hear water heater running all the time, there is probably a leak.There are ez ways to check:  -Check the water meter. Turn off all taps for 2-3 hours, and check water meter reading before and after. If homes is on water well, check pressure gauge before and after. -Hot pipe feels hotter than cold pipe. Hot-cold pipes are attached to top of heater... when hot is running, the hot pipe feels hot to touch because the hot water is flowing through the pipe ... use hand to gauge temperature of hot side pipe when no taps are on. -Sound in pipe. Turn off all taps and put ear against hot pipe. If you hear sound of running water, there is probably a leak somewhere. A continual leak will drain the hot out of tank, and evidence is hot water shortage.  -Broken
pipe. If your water pipes are under a slab, they can break
and leak and you
can't see it, but you can hear it at the tank.-If your water pipes are under a trailer or in a crawlspace, the leak might not be noticeable. -PVC and CPVC plastic pipes can be broken fairly easily. Galvanized pipes can rust or deteriorate over time. Copper and PEX are preferable, and can withstand expansion-contraction from cold-hot weather, and bending due to movement of home or structure over time.  -There is a TP
valve located on side of heater, with an overflow
tube... if this tube just goes to bottom of heater, you can visually
see if it's leaking ... but if the overflow tube goes through the wall
somewhere, the TP valve might be leaking ... put hand on pipe to see if
it feels warm. Slowly lift the lever on TP valve and then reset to see
if that solves problem.-Leaking TP valve will drain water out of tank if the TP is faulty or water inside tank is overheating... both unlikely with new heater, but common with older heaters. TP valve code Troubleshoot and repair water heater valves  -Cause can be a cold
water leak in conjunction with Crossover Cold water leak can broadcasting through the pipes and you can hear it at the heater or on a cold water line./... the culprit can be broken pipe under slab, or something simple like a toilet overflow running... for example do your toilets have a 'phantom flush' where you can occasionally hear them refilling..? Add a bit of food coloring to water inside the toilet tank and see if it shows up in the bowl. If there is a cold water leak, it can draw hot from water heater if a single-handle faucet has a bad cartridge that pulls hot water from tank. Other symptoms of crossover can be slow arrival of hot water, or hot never arrives at a tap, or luke warm water at tap even though tank has hot water. Test for crossover -Toilets should not be connected to Hot pipe... but one unusual case, the homeowner finally discovered his hot water shortage was caused by a 'contractor' connecting toilet to hot pipe instead of cold ... but not before he purchased and installed a new water heater. |
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