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Boiler Boss relay

nick z.
nick z. Member Posts: 157
I only installed one about 5yrs. ago.People called yesterday with trouble of getting heat in zone with the stat all the way down. Relay wasn'tpulled in and circ. wasn't running so I worked the handle on the flow valve and beat on it with a hammer.People called back today to say heat was working fine but they had no hot water. (phase 3 inderect) When I got there, the circ. on the inderect was running and all controls were working fine. And of course they they had hot water. My question is are those realys known to be trouble? Thanx Nick
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