JBJ Chiller Showing Incorrect Temperature

Lhprichard · 05/25/2019, 06:10 PM

Hi All-I have a JBJ 1/15 HP Chiller for my Nano Tank. I traditionally take it down in the Fall/Winter and set it up again in the Spring. Today I set it up and the temperature readout is showing only 67.4 degrees when the tank is actually around 75. I thought about a replacement controller, but then wondered if it could be the equivalent of a faulty thermostat? (If that's even a replacement part). Sorry, I really don't know much about this stuff. Any help is appreciated.

*To test it, I set the chiller down to 60 degrees and everything appeared to come on as it should.

Systemwizardinc · 05/25/2019, 11:43 PM

you can get a new thermostat from JBJ and look on youtube for how to install it

Systemwizardinc · 05/25/2019, 11:47 PM

www.marineandreef.com may have it

LQT · 05/26/2019, 12:08 AM

Have you tried recalibrating the internal temperature sensor? Hold the up and down buttons at the same time for 10-15 seconds. “CA” (calibrate) will show up on the display. Then the temperature reading will blink... use the up or down keys to adjust the temperature accordingly.

LQT · 05/26/2019, 12:14 AM

See page 7 for the official calibration instructions...

http://www.jbjlighting.com/media/Tem...riesManual.pdf

05/25/2019, 06:10 PM	#1
Lhprichard Registered Member Join Date: Jan 2009 Location: Palm Springs, CA Posts: 40	JBJ Chiller Showing Incorrect Temperature Hi All-I have a JBJ 1/15 HP Chiller for my Nano Tank. I traditionally take it down in the Fall/Winter and set it up again in the Spring. Today I set it up and the temperature readout is showing only 67.4 degrees when the tank is actually around 75. I thought about a replacement controller, but then wondered if it could be the equivalent of a faulty thermostat? (If that's even a replacement part). Sorry, I really don't know much about this stuff. Any help is appreciated. *To test it, I set the chiller down to 60 degrees and everything appeared to come on as it should.

05/26/2019, 12:08 AM	#4
LQT Registered Member Join Date: Feb 2003 Location: Fairfield, CT Posts: 1,516	Have you tried recalibrating the internal temperature sensor? Hold the up and down buttons at the same time for 10-15 seconds. “CA” (calibrate) will show up on the display. Then the temperature reading will blink... use the up or down keys to adjust the temperature accordingly. __________________ - Leon (aka - Water Dog) Deep Blue 57 Edge ATI Acro Garden Build Thread http://www.reefcentral.com/forums/showthread.php?p=25573384#post25573384 Current Tank Info: DeepBlue 57 Edge

05/26/2019, 12:14 AM	#5
LQT Registered Member Join Date: Feb 2003 Location: Fairfield, CT Posts: 1,516	See page 7 for the official calibration instructions... http://www.jbjlighting.com/media/Tem...riesManual.pdf __________________ - Leon (aka - Water Dog) Deep Blue 57 Edge ATI Acro Garden Build Thread http://www.reefcentral.com/forums/showthread.php?p=25573384#post25573384 Current Tank Info: DeepBlue 57 Edge

05/25/2019, 11:43 PM	#2
Systemwizardinc Registered Member Join Date: Feb 2008 Location: Norwalk, CA Posts: 87	you can get a new thermostat from JBJ and look on youtube for how to install it

05/25/2019, 11:47 PM	#3
Systemwizardinc Registered Member Join Date: Feb 2008 Location: Norwalk, CA Posts: 87	www.marineandreef.com may have it