Forum Discussion
Old-Biscuit
Oct 05, 2015Explorer III
Coolant is a mixture of ammonia, sodium chlorate/water (rust inhibitor) and hydrogen gas under 300 psi.
Even professionals don't recharge ....complete rebuild of cooling unit YES but not just recharge
When operated off level (even points as little as 20 mins) the cooling unit can overheat which causes the sodium chlorate to foam crystals that attach to inside of tubing. This is like a 'plaque' that can build up (kinda like old galvanized water pipe). It is permanent and accumulative....so over time all those periods of off level operation build up enough to block coolant flow/process. DEATH!
That propane flame..........orange. That is NOT proper color and does not generate enough heat so that the correct amount of heat can be transferred to make cooling unit function.
The heat has to be sufficient enough to cause the ammonia to boil/turn to vapor so it can condenser into cold liquid and absorb the heat from freezer/food section.
SO.......
Clean up that burner area. Clean orifice with alcohol, clean out burner tube, clean flue and flue baffle.
Adjust flame so that it is BLUE
Have you been running it with thermostat turned up close to MAX setting......or even tried it on MAX (full out continuous operation)?
There is also a filter on inlet to thermostat....if clogged it will resist gas flow.
HERE is service manual that will help you out.
Even professionals don't recharge ....complete rebuild of cooling unit YES but not just recharge
When operated off level (even points as little as 20 mins) the cooling unit can overheat which causes the sodium chlorate to foam crystals that attach to inside of tubing. This is like a 'plaque' that can build up (kinda like old galvanized water pipe). It is permanent and accumulative....so over time all those periods of off level operation build up enough to block coolant flow/process. DEATH!
That propane flame..........orange. That is NOT proper color and does not generate enough heat so that the correct amount of heat can be transferred to make cooling unit function.
The heat has to be sufficient enough to cause the ammonia to boil/turn to vapor so it can condenser into cold liquid and absorb the heat from freezer/food section.
SO.......
Clean up that burner area. Clean orifice with alcohol, clean out burner tube, clean flue and flue baffle.
Adjust flame so that it is BLUE
Have you been running it with thermostat turned up close to MAX setting......or even tried it on MAX (full out continuous operation)?
There is also a filter on inlet to thermostat....if clogged it will resist gas flow.
HERE is service manual that will help you out.
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