My coolant heater has failed. I checked it with an ohmmeter and it is open circuit. It used to make a whooshing sound when I plugged it in, but it is quiet now. I use it only about 10 minutes at a time to eliminate smoking upon startup. My tractor is stored in an insulated garage attached to the house. It rarely gets below 50 degrees in there. So the heater never gets left on for long periods.
The coolant heater was installed prior to delivery of the tractor when new, so it should be covered under warranty. I'm just under 2 years since delivery.
I'm going to replace it myself to save the dealer transport costs. I"m also due to replace the coolant, so at least I'll get that done at the same time.
The 1025R Operator's Manual says to remove the radiator plug to drain it. If this is a plug, it looks like it drains into the battery well. The technical manual says this is a valve. With a mirror, I can see a hose coming out beneath it, so I'm guessing it's a valve. There's also an installation post for putting in a coolant heater that says this is a petcock. So I'm hoping for valve/petcock. I don't like surprises with large amounts of fluid.
Also, I think I've found the engine block drain plug for the coolant. The Op Manual shows a 1023E, which has a different engine. (See photo.) If this isn't it, somebody please let me know.
The various manuals all talk about using "a sealant" on the heater element when screwing it in. Anybody have a more specific suggestion? Bathtub caulk is a sealant, but probably not appropriate here.