Not many parts available for that model
Burner Control Ignitor Unit is available BUT very Pricey
It does control gas and spark.
No gas flow/no spark...bad control unit
https://pdxrvwholesale.com/products/...tor-2412789303
You do have good propane flow/pressure to all other propane appliances...Correct?
Have you made several attempts to run fridge on GAS?
**Sometimes if not used routinely the propane flow to fridge can take several lighting attempts