Pro heat 2 LCD
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broomer5
Active Member
Not sure if you're losing your mind or not - but it's not uncommon for two different instruments to read differently if placed in the same temperature bath.
Are you physically taking the measurement in the same place with both devices ?
Have you done any recalibration on the digital ?
Do you have a mercury thermometer ? You could take some tank water in a cup, and compare the digital to the mercury one.
Could be one is defective, or the RTD/Thermocouple/Thermistor is bad.
You'll have to run a test to see which one's correct or closer to being correct. Or return to manufacturer.
Are you physically taking the measurement in the same place with both devices ?
Have you done any recalibration on the digital ?
Do you have a mercury thermometer ? You could take some tank water in a cup, and compare the digital to the mercury one.
Could be one is defective, or the RTD/Thermocouple/Thermistor is bad.
You'll have to run a test to see which one's correct or closer to being correct. Or return to manufacturer.
almarktool
Member
i have the same heater rember it is telling u that whereever the heater is it is that temp mine is in my sump and tells me i am at 84-85 but my tank is 82 which would be correct since i have 2 pumps in my tank , also since it says u are at 75 is it kicking on?
almarktool
Member
well, if that was my situation and i was getting 2 diff readings at the same location i would see what a stick on temp gauge showed or another type , u have already said the temp controller is acting funny since it kicks on at 76 but not at 75? or perhaps the unit sensed a drop in temp like 75.9 and turned on like it should.