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[APD] Re: heaters--any way to tell when they're going bad?
I have a several fairly new heaters that give me no trouble at all, now,
but I'm just wondering for the future--is there any symptom of impending
failure that one might look out for, so it could be replaced before it
gets stuck "on" and fries your fish?
Just looking for something to worry about, since the algae is pretty tame
Diane Brown in St. Louis
Not much, but I have found that they seem to be more likely to fail "off"
than "on". For me, every time a heater is getting ready to die, it will
stop going off/on/off, and be more like off/spark a while/on/spark a
while/off. You see this as sparks in the switch or flickering in the light
for a few seconds before the heater changes state from off to on or vice
versa. It's usually just the contacts in the thermostat that die, although
I had one that had a connection in the heating element go bad (you could
see it spark for a few months before it stopped working).
The electronic heaters die with no warning that I have found, although I've
only used a few of them. I've had good luck with the visitherms lasting
about 7-10 years. I have a lot of the little Hagen thermal compacts which I
have had zero failures with so far (they're all little 25 watters though).
UNIX Systems Administrator
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