Eheim problems

[SeamusHarper]

I'm having problems with my Eheim tube heater. I've calibrated it as the instructions say and it's still heating when it shouldn't be. Any ideas on what to do? Is it possible I got a faulty heater?

 

[Saltyreef]

Is it new?

 

[Uncle99]

I'm having problems with my Eheim tube heater. I've calibrated it as the instructions say and it's still heating when it shouldn't be. Any ideas on what to do? Is it possible I got a faulty heater?

“Having Problems” is a little vague…can you expond?

Which calibration and test are you performing?
Bucket test?
Is there adequate flow in the testing area?
What device are you using to check calibration.
Does the heat never turn off?
Is it overshooting and if so by how many degrees.
Are you using any controller?

 

[SeamusHarper]

It was new when I started the tank 6 months ago.

I'm performing the calibration test they have in their videos.

Adequate flow in the testing area, it's right next to my pump.

I have multiple thermometers that are showing 80 degrees+

The heater is turning on and off as it's suppose to but it shouldn't be on at all since I'm setting it below 80. I want the water at 78, I calibrated it at 78, and the water is at 80 and the heater is still going off and on.

No controller, just the heating unit plugged int.

 

[Mr. Mojo Rising]

Do yourself a favor and grab an inkbird, it one of the best $40 you can spend on this hobby. Heaters are the most faulty equipment in aquarium hobby, they will fail, its just a matter of time. What usually fails is the thermostat inside the heater. Let the inkbird control the heater for you and you'll never have to calibrate or worry again.

 

[SeamusHarper]

Do yourself a favor and grab an inkbird, it one of the best $40 you can spend on this hobby. Heaters are the most faulty equipment in aquarium hobby, they will fail, its just a matter of time. What usually fails is the thermostat inside the heater. Let the inkbird control the heater for you and you'll never have to calibrate or worry again.

Any of their temperature controllers or is there a specific one I should be looking at?

I'm certain the thermostat inside my Eheim isn't working.

 

[Uncle99]

It was new when I started the tank 6 months ago.

I'm performing the calibration test they have in their videos.

Adequate flow in the testing area, it's right next to my pump.

I have multiple thermometers that are showing 80 degrees+

The heater is turning on and off as it's suppose to but it shouldn't be on at all since I'm setting it below 80. I want the water at 78, I calibrated it at 78, and the water is at 80 and the heater is still going off and on.

No controller, just the heating unit plugged int.

Not unusual for that heater.
Kinda overshoots the setting a bit.
What temp does it turn on, and off at.

 

[Mr. Mojo Rising]

Any of their temperature controllers or is there a specific one I should be looking at?

I'm certain the thermostat inside my Eheim isn't working.

The inkbird 306A or 306T, one is wifi you can control through an app on your phone, the other is manual.

 

[SeamusHarper]

Not unusual for that heater.
Kinda overshoots the setting a bit.
What temp does it turn on, and off at.

It turns on an off when the tank is too warm. Yesterday, the tank was at 80 degrees. The heater was set at 73 and it was still cycling on and off. I then calibrated it according to Eheim, and it was still heating.

 

[Cornelia_Reefer]

I have BRS titaniums and an Inkbird ITC-306A on my DT and the temperature has been rock solid.

But I bought three eheims for my mixing station and QT tanks and I’m having the same experience. They all overshoot the temperature sometimes but not at a completely consistent amount. It’s quite disappointing as I’ve always relied on these heaters in the past.

 

[Uncle99]

It turns on an off when the tank is too warm. Yesterday, the tank was at 80 degrees. The heater was set at 73 and it was still cycling on and off. I then calibrated it according to Eheim, and it was still heating.

If it cycles on and off, it’s out of calibration.
I’d get a digital heater. Relying on metal contacts is risky at best.

Heat kills fast. INKBIRD makes a good control.

 

[Saltyreef]

Ive used eheim jager heaters since the dawn of my reef tank existance and the only time ive ever had it screw up is when i submerged the top controls. Keep the top out of the water.

Now i use digital and keep the glass jager heaters for saltwater mixing.