How can I reduce the minimum temp setting from 59 to 45 degrees?

Keep heating mode and temp setting at minimum 3 to 4 degree C* between room and required temp.

If still not working, replace the heating sensor.

Tnx

Change or clean the filter and clean both coils, no air flow or reduced air flow, the coil will freeze. It will also freeze if its set to cold 72 min. setting. Example if your room temp is 72 degrees, than the air will be 52, and the coil temp is 32 degrees, any moisture will freeze. Hope this helps

Check temp setting and also room sensor. Setting must be minimum 3 degree more than room temp. Check continuity for sensor. If open replace it. Check coil , air filter and heater element are cleaned.
If high amps, replace heating element. Thanks.

In your remote, there is mode button, the symbols for each option will display. The symbols are:
"
Now symbols:
1. fan leaves - Fan only
2. Rain drop- Dry mode
3. Snow flake-Cool mode
4. Sun- Heat
5. A or AU- Auto mode.To get proper cold air set temp 23 degree and mode"cool". To get heat set temp minimum 3 degree more than room temp and mode in "Heat"

Dear friend, find below symbols for mode setting. For cool keep minimum 3 degree less than room temp and heat keep minimum 3 degree higher than room temp. Dry mode will help you only in wintertime. Thanks.
Now symbols:
1. fan leaves - Fan only
2. Rain drop- Dry mode
3. Snow flake-Cool mode
4. Sun- Heat
5. A or AU- Auto mode.Helpful?

keep heat mode and temp setting minimum+5 degree than your room temp. Thanks.

Friend! All thermostat is calibrated to cut in and cut off at the end of - or + 1 degree end.
Example: If you set 23 degree, it will cut off in 21 degree and cut in @25 degree. So accordingly you set the temp.
Secondly, don't set temp near to your room temp.Minimum difference should be 3 degree. If your room temp 12 degree, set at least 15 degree for heat and if room temp 28, set at least 25 degree for cool.
Hope it's helpful?

It is the aspirator above the driver door in the cab. Looks like a tiny speaker. It samples the in cab air temp and adjusts the actuators according to the temperature it's reading.

I know the minimum operating temp for many refrigerators is around 33 F (about a degree above freezing or so). This is due to the refrigerant gas within the compressor and the fact that it is not stable at low temps. Typically, a refrigerator's minimum ambient temp should be 50 degrees F (10 degrees C).

I don't know if there is a whole lot you can do. The refrigerator really wasn't built to work in such cold weather. You may either have to relocate it, put a heat source near it or look into a special freezer that is *supposedly* able to operate in much colder ambient temps.

yes you adjust the thermostst to lowest cooling temperature