Dometic Thermocouple

[03Dolphinlx]

I have a 2003 RV with a Dometic refer. I need to replace my burner pipe and wanted to know if I should replace my thermocouple at the same time? What should the life expectancy of a RV thermocouple be? I dry camp at the beach about 100 days a year so the beach air is hard on metal parts.

[RV Wizard]

If it will make you feel better you can change it. In reality a good igniter/flame sensor and a thermal couple will last for many years. I sold a 23 year old coach with the original thermal couple in it and the refrigerator was still working.

[Ray,IN]

Ditto what Mike said. Thermocouples are generic and cheap, you just buy the length required. Insure the tip is near middle-to at top of the pilot flame. Don't touch the contact on the gas valve end, contamination shortens its life.. This connection transmits only a few milli-volts.
FWIW, I have bought new thermocouples that were bad, and- have, like Mike, had a some that never seem to wear out.