A morning with no hot water is a fast trip to a bad mood. Before you panic-book a plumber, ten minutes of basic checks can often tell you whether the fix is something simple - or whether your hot water tank has finally given up.
1. Is it a gas or electric hot water tank?
This decides the troubleshooting path. Look at the bottom of the tank:
- Gas tank- flexible gas line entering the bottom, a small access panel covering the burner, a vent pipe rising out of the top
- Electric tank- an electrical conduit entering the side, a thermostat reset button under an upper or lower access panel, no vent
2. Check the breaker / gas supply
- Electric: open your breaker panel and confirm the breaker labelled “Hot Water Tank” (usually a double-pole 30A) is fully ON. If it tripped, flip it OFF then ON again. If it trips again immediately, stop - call a plumber.
- Gas: confirm the small shut-off valve on the gas line at the tank is parallel to the pipe (OPEN). If it’s perpendicular, turn it back parallel.
3. Look at the pilot light (gas tanks only)
Most modern gas hot water tanks have a sealed combustion chamber with a small sight glass on the gas valve. Look for a blue flame or a status light:
- No flame / no LED status- pilot is out
- Flashing red / error code- see the next step
- Solid green or steady blue flame- pilot is fine; problem is elsewhere
Try the relight procedure printed on the front of the tank. If the pilot won’t light at all, your thermocouple is the most likely failed part - a quick, cheap fix for a plumber.
4. Decode the error LED (gas tanks)
Most newer gas tanks blink an error code on a small LED. Common ones:
- 1 flash- no fault detected (good)
- 3 flashes- thermopile / pilot issue
- 4 flashes- temperature limit exceeded
- 7 flashes- gas valve failure
- 8 flashes- internal fault
Look up the exact code in your tank’s manual or take a photo of the LED behavior to send your plumber.
5. Reset an electric tank’s thermostat
Electric tanks have a high-temperature limit switch (the red reset button) on the upper thermostat under the access panel. If your tank stopped heating after the breaker tripped, this button often needs a press to reset.
Safety: turn the breaker OFF before removing the access panel. Then turn it back on after replacing the panel.
6. Check the age of the tank
Find the manufacturer label on the side. The serial number usually encodes the year. Tanks typically last:
- Gas tanks- 8 to 12 years
- Electric tanks- 10 to 15 years
- Tankless- 15 to 20 years with proper descaling
If your tank is past these ages and failing in a way that requires a major part (gas valve, tank itself), replacement is usually the smarter spend.
7. Look (and smell) for trouble
While you’re near the tank, check for:
- Water around the base (tank leaking - replace, do not repair)
- Rust on the tank body or fittings
- Hissing sounds (pressure relief valve discharging)
- Gas smell - leave the house immediately and call FortisBC at 1-800-663-9911
8. Test the hot tap last
If everything above checks out, run a hot tap for 5 minutes and feel the temperature progression. Slowly getting warm? Element / burner is working but it’s struggling. Stays stone cold? Something’s not firing.
When to call us
If you’ve worked through these checks and you still have no hot water - or you’ve found something concerning like leaking, gas smells, or a tripping breaker - call Right Choice Plumbing at 604-330-9695. We carry the most common hot water tank parts on the van and most repairs are same-day. If the tank is past saving, we can install a new one in most cases the same day or next.
Need a plumber for this?
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