honeywell s86a

[Deleted User]

the tstat disconnected and had the wires jumped together to test if the tstat was bad.. i had no spark when jumping the tstat wires?

[Deleted User]

honetwell s86a?

hey all, customer calls with no heat today..peerless 2 head steamer.electronic pilot.. says heat was on last night and today nothing... thermostat has no spark and boiler feeder, lwco responds to nothing.. the transformer has power.. jumped the thermostat wires and have no sparking at all.. im ruling out the s86a? need to go there tomorrow.. any ideas? thanks all

Steamhead (in transit)

Make sure

you have voltage to the S86A in all the right places. If everything else looks OK it's probably a bad S86A. I believe the latest Honeywell S8610U can be set up to replace almost any spark module.

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[Deleted User]

well

i have voltage from the transformer to the s86a but nothing else has power.. the self feed on unimatch doesnt work, the lwco does not respond to lw conditions and the thermostat wires have no spark at all!!! is the s86a also referred to as a power pack? thanks

Steamhead (in transit)

Sounds like a bad connection

somewhere.... maybe in one of the controls?

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[Deleted User]

i checked

the wires on the lwco and the feeder.. those were all ok.. im a little confused as to why there were no sparks from the tstat wires being jumped? the transformer was hot though

Steamhead (in transit)

Maybe

the thermostat is bad?

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Steamhead (in transit)

Go over it

with your voltmeter to see where you have power and where you don't. It sounds like a loose or bad connection somewhere.

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lchmb

rollout switch

Ohm out your rollout and safety limit's to see if one is open would be my first guess...

[Deleted User]

gonna

get more in depth tomorrow.. i kinda ruled out the s86a because i had power at the transformer but no where else.. thanks all

Glenn Sossin_2

Follow the voltage

If your transformer is good, follow the voltage around with your meter as per the wiring diagram of the boiler. Usually pasted inside the jacket cover. Its like a big circle - going through the damper switch, the roll out switch, the blocked vent switch, LWCO, gas valve, etc. Anyone of them can shut you down. Soon as the voltage stops, you've got at least one of your problems identified.