I'm facing a tricky situation with my water heater and hot water recirculation pump. Both of these appliances are plugged into an outlet that is downstream from a GFCI outlet. However, every time I plug either the water heater or the circulator pump in, the GFCI trips. I can't see any visible damage or leaks around the water heater, and everything else I plug into that outlet works fine. Interestingly, I tried plugging both devices into an extension cord connected to a regular outlet, and everything worked without tripping. But I know that's not safe, and now the circulator pump has stopped working completely, plus there's leaking around its connectors. I'm wondering:
* Why is the water heater triggering the GFCI even with no visible issues?
* Could the leak from the pump be affecting the heater's electrical performance?
* What should I check or do first?
Any suggestions would be greatly appreciated! Thanks!
3 Answers
GFCIs can definitely fail over time, so it’s worth considering that yours might be faulty. Also, motors tend to leak current to ground as they age, which is why having them on a GFCI can be a problem—it's not ideal for older systems like pumps. You might want to try bypassing it temporarily to see if the devices work fine without tripping the GFCI. Just keep in mind that safety comes first, so don’t make a habit of it!
I’d suggest trying to replace the GFCI outlet. I've had a couple go bad at my place; sometimes they just break for no apparent reason. Testing with a new one could save you a lot of headaches if that’s the issue. Plus, it might help with the tripping problem!
You should check how many amps both your heater and pump draw. It's kind of unusual to have a standard water heater plugged into a regular outlet, let alone a GFCI. For your pump, if it’s under 3 amps like you mentioned, that’s not too heavy a load. But still, it's best to ensure everything is set up according to electrical standards and maybe consult an electrician if you're unsure!
The pump does draw under 3 amps, so that seems low. I’ll check the specs on the heater too. Thanks for your advice!