Question about Lite On Laars Lite 2 Heaters: 250,000BTU MV Heater
The heater willl turn on for about 2 minutes, then cycles off, theyn trys to turn on again and does, but turns off within 10 seconds. Pressure on the pump is low, pressure switch has been replaced and the temp on the pool is below thermostat setting.
The control module is the problem it allows the heater to come on then turns off power to the gas valve.if you are not getting enough water flow the high limit is turning the heater off then your problem is flow.
Posted on Feb 19, 2009
Clean your filter first, the water flow may not be strong enough to allow the furnace to stay lit.
Posted on Jul 13, 2008
Try jumping out the pressure switch on the heater. The pressure switch is normally closed, the water pushes it open. You can check continuity between the contacts on the pressure switch. Even a new switch will still cut the conenction
Posted on Oct 02, 2007
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Posted on Jan 02, 2017
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