Herpstat HP Tripping

[highqualityballz]

Email dion the owner of spyderrobotics. I use the herpstat hp also with a pelonis oil filled heater and have not experienced any tripping.

[BPGator]

Email dion the owner of spyderrobotics. I use the herpstat hp also with a pelonis oil filled heater and have not experienced any tripping.

I emailed already. I assume he'll respond tomorrow. Second time I've had issues with Herpstats. Last time I received a Herpstat 2 with a bad probe jack. He was real quick to send out a replacement. Can I have such bad luck?!

Do you use yours on full power? Any ideas on what I could be doing wrong?


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[OhhWatALoser]

Heating elements do not have an in rush current, like motors. And any fan motor that would be on a space heater wouldnt have an in rush that's worrysome. I'm using a 1500watt heater on a herpstat hp with no issues. So either your heater is messed up and pulling more than it should, but not tripping the breaker which would have to be a pretty specific short or the herpstat is messed up.

Could verify by using another high wattage item like a hair dryer and seeing if you can replicate the problem.

[highqualityballz]

I emailed already. I assume he'll respond tomorrow. Second time I've had issues with Herpstats. Last time I received a Herpstat 2 with a bad probe jack. He was real quick to send out a replacement. Can I have such bad luck?!

Do you use yours on full power? Any ideas on what I could be doing wrong?


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No, i have it on medium with temp all the way up. My room holds temps really good so i personally dont need high power.

[Justinhicks]

You would think Herpstat would have accounted for that??
I would bet the initial fire up is the same power draw no matter what setting its on...

Current draw is proportional to power (wattage). Lower wattage = lower current. The wattage selector places parts of the circuit in or out of the circuit.

Inrush current really only applies to an inductive or capacitive load ( motors or transformers). This heater is pretty much purely resistive.

My money is on a thermal overload or relay.

[Justinhicks]

Heating elements do not have an in rush current, like motors. And any fan motor that would be on a space heater wouldnt have an in rush that's worrysome. I'm using a 1500watt heater on a herpstat hp with no issues. So either your heater is messed up and pulling more than it should, but not tripping the breaker which would have to be a pretty specific short or the herpstat is messed up.

Could verify by using another high wattage item like a hair dryer and seeing if you can replicate the problem.

What he said.

Hope its its not a federal pacific breaker!

[cchardwick]

I had a similar problem with my computer printer, it pulls a lot of power when it first starts up and turns off my computer and fish tank lights but doesn't pop the breaker. I fixed it by plugging everything into a USP battery backup. You should plug the Herpstat into a USP battery backup, it will keep it powered for the instant the heater pulls the extra power it needs.

I just bought two Herpstat 4 for my eight row ARS rack, I totally love it. It keeps all the temps of all the tubs within a couple degrees, no problems at all so far.

[BR8080]

I emailed him already, hopefully I hear back tomorrow. Because the heater and the thermostat have the same limit, I wasn't expecting to be able to use the high setting, but I was very surprised that the middle setting trips it. I'll post back when I get a resolution.


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You mentioned working with Dion in the past with good results and I would have to agree.

I recently asked him a couple questions about the Herpstat units not being UL (or other safety certification certified) and his reply was impressively thorough. Honestly he didn't have to explain in the detail he did but I was really impressed with his prompt and informative response.

I'm sure he'll help, as you've already assumed I'm sure.

[Sauzo]

If the HP is supposed to handle 15A then the issue is with the Herpstat. My circuit breaker is 15A and it's not tripping (and I have lights on that circuit too).

Where did find that it says it can handle 15A? I've only been able to find 1500W.


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Right on the website. Read the last part of the bold print.
http://www.spyderrobotics.com/index....efbuevvtf8f5p6

Lol i'm stupid. I was reading the pass through unit which I thought was what you were using. I see you actually meant the big HP unit. Yeah, that is only rated to 12.5 amps so again, the Pelonis says 13.5 amps if I remember correct so that might be your problem. But if others are using the same Pelonis unit fine, I don't know. Yeah I'm pretty worthless on this topic haha.

[OhhWatALoser]

Right on the website. Read the last part of the bold print.
http://www.spyderrobotics.com/index....efbuevvtf8f5p6

Lol i'm stupid. I was reading the pass through unit which I thought was what you were using. I see you actually meant the big HP unit. Yeah, that is only rated to 12.5 amps so again, the Pelonis says 13.5 amps if I remember correct so that might be your problem. But if others are using the same Pelonis unit fine, I don't know. Yeah I'm pretty worthless on this topic haha.

1500 watts = 12.5 amps @ 120v. I've also never seen a unit that pulls 13.5 amps and is able to plug into a 15 amp Recp. Generally things are built for continuous loads at 80% of the circuit rating max. I'm not even sure how they get away with 12.5 amps but I guess it's only 83% and everyone likes their even numbers. But even if there something screwy with the heater, the 900 watt setting should only be pulling 7.5 amps far below all Max ratings.