aquatsat L8148E

Old 03-01-08, 09:38 AM
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aquatsat L8148E

I have a 3 zone gas heating system with an aquastat L8148E. When all 3 zones call for heat and the water temp reaches 180 deg the gas burner keeps cycleing on and off. If I tap the high limit dial switch with a screw driver the burner will stop cycleing on and off and will work normally for a day or two. Should I replace the aquastat ?.
Old 03-01-08, 10:03 AM
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You checked all connections for tightness, yes ?

It does sound as though the a'stat might be 'flaky' though.

If all connections are clean and tight, then I'd say yes, replace it, it will only get worse.

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