Jim Lincoln replaced his stock thermometer with a new digital unit. Here's what he did:
The stock thermostat that controls the heater fan is analog and is not precise. Although it's reported to have +/- 3 degrees sensitivity, mine was actually +6/-??
The upgraded thermostat is digital with +/- 1 degree sensitivity (confirmed after installation). Here is the prescribed model, thanks to Marcus Hammitt for the find: http://a.co/fqI3TzA
The new thermostat fits right where the old thermostat was mounted. You can even use existing/stock screw holes if you like.
Upgrade instructions (in baby steps):
- Remove stock thermostat cover. (It pops off from the bottom.)
- Remove screws attaching wires to thermostat and thermostat to wall (2 each)
- Straighten, then cut the wire ends so that only .3” of bare copper is exposed. Twist and straighten the exposed copper.
- Optional, for those who don’t want new holes in your van: Match the new and old thermostat mounting plates up by the top right-hand corner and drill new attach holes in the upgrade mounting plate to match the old one.
- Attach the two wires to the new thermostat (red=red, orange =white).
- Mount the new thermostat to the van.
- Confirm your new level of environmental control!
Results:
- You’ve gained an always-on digital display of actual cabin temperature.
- You have +/- 1 degree control of cabin temperature in cold weather.
BEFORE
AFTER