Running Coupler
Why does my thermo coupler need to be replaced every year?
I have a hot water based board heat system powered by a gas boiler. My thermo coupler seems to go bad every 9 months. Sometime I turn the pilot off in the summer and I cant get it back on. Sometimes it goes bad while it is running. I got good at changing it myself, but have gone through 6 in the last 4.5 years.
Check your pilot flame. It may need adjusted
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