Check out JC Refrigeration. I'm going to do this when the time comes. You replace your gas/electric ammonia system to a compressor unit. You still use the same box you have. It's less expensive than buying a new gas/electric cooling unit. Cost
$895.00 AC compressor or $1095.DC Compressor with $300 factory install. Looks like a simple install and I would do it myself.
Here's their website.
Three options to upgrade your 4-door 1200-series Norcold
Option #1: New Cooling Unit
Converts your existing fridge to a residential fridge (which eliminates your LP gas). This cooling unit is built with a compressor system and not only do you get to keep your same fridge and controls you are used to, but there is no need to remove the windshield or window to get the old fridge out and the new in – nor the hassle of cutting or redoing the cabinets to make a new fridge fit. Also there is no need to have the coach perfectly level for the fridge. It pulls less than 1 Amp and will run off a 1000W inverter (does not require pure sine wave). This unit is coated with a corrosion/rust preventive paint, and is very user-friendly to work on in the field should it ever need repair in the future. It is designed to withstand hot/humid temps and will keep your ice-cream hard. Comes with a 3-year warranty. See our easy DIY install video or have it factory installed.
Option #2: Upgraded Gas/Electric Hybrid
Upgraded with a double absorber versus single, this unit will bring you double cooling capacity, meaning it will withstand hot humid conditions and your ice cream will be rock hard for the first time. The boiler is designed for faster cooling turnaround and thicker boiler tubing to eliminate the leak factor many Norcolds have. Easy to install for the DIYs (see our install video) comes with a high corrosion /rust preventive paint and its warranty is covered for 3 years with an optional extended 3-year for $125.
Option #3: Upgraded Gas/Electric – Helium Charged
It has the same upgrades as Option #2, but it is charged with Helium versus Hydrogen thus making it a safety feature (non-explosive). It operates the same and has the same cooling capacity. Being a more labor intensive unit to build, it cost $200 more than option #2 and comes with the same 3-year warranty.
:CNever pass up a chance to go somewhere:C