Central Boiler Outdoor Wood Digital Temp Controller

This is an exact replacement for what I had. Very simple to replace. Take a pic with your phone of the old installation and wire the new one in exactly the same. You need a very small (blade not length) screwdriver for the screws holding the wires and a 1/4" or 5/16" nut driver to remove the panel covering the electronics. There are two screwes on the outside of the door as well. Kill the power at the toggle switch inside the unit. Pay attention to how the old controller is removed with the plastic clips and install the new in reverse.My old controller was still working but the LED screen had broken lines making it difficult to read. If anything changes in regards to longevity I will update. BTW - this shipped faster than was stated on Amazon.

This worked perfectly in my Central Boiler

Fixed my 2005 4436 classicTemp reading was working-but when I hit program temp button would read out crazy numbers like -39 this is an exact original replacement unit same numbers on it and easy to install

used to control power to heat tape on exposed water line. Works like a champ

Last one worked 10 yrs. Hope to get that outta this one

Worked perfectly for my 6048 centeral Boiler

Replaced original after 12 years. As advertised, shipped quickly.

So far so good 4 months in service so far if it craps out I’ll come back and edit this