Question about Hayward H Series Millivolt 250,000 Btu Pool Heater H2501
Check the burner tube closest to the pilot side of the burner tray. Is it burning a nice blue like all the rest? If it is not, clean out the jet on the manifold in front of the tube.
If it is ok, can you get a millivolt reading off the generator (thermocouple)? If so, get the reading with just the pilot on it, then with the burner load. Finally, watch that reading as the burners run for a while to be sure it climbs.
The only other thing I can think of would be to get manometer readings to verify gas pressures before and after the valve.
Posted on Jul 30, 2009
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Posted on Jan 02, 2017
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