Re: Lars heater soot build up
Posted by e-plumber on July 29, 2004 at 20:11:26:
In response to Re: Lars heater soot build up
: Hi There,
: I have a 1997/8 Lars Pool heater which has an intermittent fault in not being able to sustain a constant water temp. The thermocoupler has been replaced but made little difference. I am currently using the 'Spa' side of the control panel. I am getting a major soot build up inside the unit and have installed better cross ventilation in the pump room. There is a Spa and a pool heater sitting next to each othet.
: Can you suggest a remedy?
: Thanks
: Ian
: San Diego

The flue passages may be dirty with carbon build up. It sounds like the gas/air mixture is off, improper combustion, improper exhaust or a combo.
Have a pro check the system.

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