Chum lee wrote:
The hydrocarbon detector (propane) and the propane safety shutoff solenoid are designed to operate together to minimize the possibility of propane leaks in the interior of your motor home. If you disable the system, you no longer have that safety feature. If, for some reason, the flame blows out on your range top, propane gas will now begin to fill your motor home. If someone (by accident) jars one of the range burner valves, opening it without lighting the burner, the same thing happens. Now, it's just a matter of time until the propane reaches stoichiometry, finds an ignition source, and, . . . . . . . . Bye!
In similar fashion, many fuel injected cars have an inertially activated fuel pump shutoff valve that cuts power to the fuel pump relay after an accident. (even if the engine remains running) After a serious accident, with fuel lines breached, pouring fuel on a high potential fire hazard is generally NOT a good idea.
When you are racing and have a serious accident, there's always a track safety crew to come and quickly extinquish any fire(s). In your motor home, . . . not so.
Chum lee
Your concern is duly noted..
However, in reality, the amount of RVs factory equipped with solenoids controlled by LP detector are very few compared to the quantity of RVs without.
Highly doubt there is more RV fires and explosions that happen with RVs without that system.
It is a great idea but in reality not necessary, not required by law and over the yrs different manufacturers have come and gone and when it comes time to repair the systems parts often will not interchange and obsolete systems, the parts are made of "unobtainium" causing a major retrofit.
Millions, perhaps billions of homes are serviced by propane or natural gas also, not all that many (if any at all) make the news as blowing up because someone accidentally "bumped" on of the ranged valves or wind blew out the flame.
Comparing auto fuel systems isn't all that good of a comparison either. Fuel injection systems operate at very high pressure (40PSI-50PSI) and when a vehicle is involved in an accident the concern is all that fuel under high pressure spraying on to very hot engine and exhaust parts creating an intense fire ball..
The propane at your appliances is maybe 1/2 PSI..