I have a laars lite 2 manual controls natural gas. The unit starts up runs strong for 5 mins shuts down restarts runs for now only seconds and shuts off
Heating & Cooling - Lite On - Laars Lite 2 Heaters: 250,000BTU MV Heater
Sounds like the hi limit switch is shutting it down,because it is not getting enough water,cloged filter, valve to heater notopen,bypass valve not closed,open up the water releif valve with the pump running should be alot of water running coming out of it.
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Sounds like the hi limit switch is shutting it down,because it is not getting enough water,cloged filter, valve to heater notopen,bypass valve not closed,open up the water releif valve with the pump running should be alot of water running coming out of it.