1. Jump the red wires to bypass the Thermal switch. That will tell you if it is a possible problem.
2. IF the LP fails to stay lit when called for, you WILL get a CHECK light.
3. If the refer is at or close to set interior temp, then leave the interior door open for 30 minutes to raise the Refer temp to continue testing.
4. YOU NEVER TAKE A GAS SOLENOID APART OR TAMPER WITH IT. PERIOD. TAKE IT LOOSE AND CHECK FOR OBSTRUCTION, BUT IF DEFECTIVE YOU REPLACE. NEVER ATTEMPT TO FIX or MODIFY. Dinosaur has some idiots working for them I guess. The Liability to tell someone to do what they did is tremendous.
5. Yes the refer LP cycles on and off as temp requirements are needed. Doug