Your 2333 should have a BYPASS tstat for the LP operation. What that means is, when the refer reaches the set temp on LP, the flame diminishes to a LOWER flame. This is regulated by the tstat which lowers the LP pressure for a lower flame. When the refer needs to cool, the tstat allows full 11.5 inches LP pressure and the flame gets to its larger stage. So, on the output side of the tstat is NOT 11.5 when on MAX cool the tstat is BAD. Doug
I should have stated you should have 11.5 at the INPUT on the tstat and 11.5 output. If you have 11.5 input an NOT 11.5 output the tstat is bad. If you do NOT have 11.5 input, your LP regulator is bad. If your LP regulator requires adjustment, then it is BAD.