Hello again, tanks for the detail.
That approach will get a no voltage read.
take the voltage reads as shown in my marked up picture at the link above.
If you get 230v across the two blue arrows, you have 230v at the outside unit, and that means its not getting 24volt control power most likely, repair any pet chewed wires, if the unit still does not run check the 3 amp automotive type fuse found in most control cards... and check between the red thermostat wire and the frame of the furnace or gas valve, you should get an 11 to 19 volt read, if you get no read, a 24v fuse is blown, or the 24v transformer is bad (90% chance of that).
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If you need anything else, just let me know. You can continue asking follow-up questions at no additional cost.