LWCO

tom_11

I have a weil mclain 368st oil fire boiler the lwco seems to stick,is it wise to clean it or change it. The boiler is 11 yrs old. thank you. tom

tom_11

LWCO

I have a weil mclain 368st oil fire boiler the lwco seems to stick,is it wise to clean it or change it. The boiler is 11 yrs old. thank you. tom

ed wallace

lwco sticks

time to replace it its a safety device if it fails to turn boiler off you will have major problems please turn off your heat til its replaced

Steamhead

Replace it

it's worn out, and you can't rely on it.

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Empire_2

LWCO

If its probe type replace it,. If its mechanical, it can be cleaned ONLY by a qualified Tech. and kept in system. This is not a safety switch that you want to second guess.

Michal

what controls do you have

well we need to know what controls do you have what model numbers. I have seen model 67's stick cause of rust on the inside and I have seen them cut water off too low since they were not adjusted correctly.

tom_11

LOWC

I have a #67 McDonnell.Miller LWCO, i opened the bottom of the Lwco and there was some scale on the wall of the lwco, so i cleaned the wall and replaced the gasket. It works fine now. Thanks for the help. Tom

Steamhead

Keep a close eye on it, Tom

in case it sticks again. A new LWCO is much cheaper than a new boiler.

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Michal

keep eye on it

well a friend had the same issue, he called service guy before i could get a gasket kit and he replaced it, was very pricey, but like steamhead said keep a eye on it