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View Full Version : Johnson A-19 temp. control


KB Cool
03-22-2010, 10:27 PM
Anybody else having trouble with these things. I've had several lose it's temp. accuracy in about 9 months. The parts house guy told me i must be doing something wrong. I then asked him if it's 55° in his store. while turning the dial on the stat that's clicking (contacts closing) at 55°. It should have been clicking at 75°F or so. :D When he finally comprehended what i was doing he gave me warranty credit. :eek:
I got a digital A-419 instead.
selfemployed
03-22-2010, 11:27 PM
Had to replace one after 2 years and had to calibrate one when installed.
VTP99
03-22-2010, 11:46 PM
There JUNK i quit using them unless my customer is really cheap. I like the Ranco ETC 111000 and was getting them for the same price till this year. :(
crstephens83
03-22-2010, 11:48 PM
where are you mounting them , the thermostats must be mounted on a level surface, if they are not on a flat level surface they will lose their calibration.
KB Cool
03-23-2010, 12:41 AM
where are you mounting them , the thermostats must be mounted on a level surface, if they are not on a flat level surface they will lose their calibration.

All the ones i've had trouble with were mounted vertically. Do we need to mount them upside down? :) http://members.cox.net/kbghdg/roflmao1.gif
crstephens83
03-23-2010, 12:42 AM
no not upside down just on a flat surface
KB Cool
03-23-2010, 12:47 AM
There JUNK i quit using them unless my customer is really cheap. I like the Ranco ETC 111000 and was getting them for the same price till this year. :(

It appears so. I ain't buying them anymore. Unless, it's the air-bulb style. I wonder if they're slowly leaking the charge out of the capilary causing them first to go out of calibration. Then later on they would fail totally? If allowed to remain operational.:confused:
KB Cool
03-23-2010, 12:47 AM
no not upside down just on a flat surface

I was just joking! :D
crstephens83
03-23-2010, 12:49 AM
gotcha
VTP99
03-23-2010, 12:54 AM
It appears so. I ain't buying them anymore. Unless, it's the air-bulb style. I wonder if they're slowly leaking the charge out of the capilary causing them first to go out of calibration. Then later on they would fail totally? If allowed to remain operational.:confused:

Yap,
Tell my customers turn the dial till there's no more then call me. :cliff: