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Have 5 flashes on my st912ou1011 or 4 short 1 and 1. Brand
Have 5 flashes on my st912ou1011 or 4 short 1 and 1 long. Brand new board brand new limit switch. Smart valve indicator light is not on all. Blower motor just runs non stop … read more
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condenser goes on then goes off for gust a second fan in house stays on … read more
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Can I ask wiring questions for my circuit board? Just
Not that I know of. I'm replacing a ST9160B 1068 control board on an Armstrong Ultra V Advantage 93 furnace with a Honeywell ST9120U. I have everything hooked up but the two wires that were on the M1 and M2 pins on the old controller. I'm not sure where they go. … read more
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Armstrong Ultra V Tech 80 Gas Furnace Igniter will not glow.
Armstrong Ultra V Tech 80 Gas Furnace Igniter will not glow. I have replaced original igniter (no continuity) still no glow. Draft blower runs as should, pressure switch is ok, no restrictions in air … read more
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I am replacing a Honeywell ST9160B 1068 controller board
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I have a question about my furnace control board, which is
I have a question about my furnace control board, which is not powering my Aprilaire Humidifier... I am pretty sure the board is not powering the white and black leads to the humidistat transformer (0… read more
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I have a Honeywell Chronotherm III. I replaced the batteries
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I have a Honeywell 9502H2704 Smart Gas Valve. I want to know
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Hi MarkMy Armstrong Air Ultra 5 Advantage 93 furnace, which
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Hello- We just moved into our home. It has an older Rheem
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Hello. Trying to replace original Honeywell ST9160B-1068
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Armstrong Ultra V hot surface ignitor does not have voltage
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OK this ones really got me scratching my head. I have an Armstrong
OK this one's really got me scratching my head. I have an Armstrong ultra V tech 80. It was working fine until one day the blower fan just stopped going off. The heat and AC worked fine(compressor com… read more
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BillyHvac
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I have Rheem Model RAHE-036JAS and what happens is the 1 pole
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I have a Air Ease Ultra V Tech 80 furnace with a new Honeywell
I have a Air Ease Ultra V Tech 80 furnace with a new Honeywell SV9520H valve and ST9160B control board installed. With thermostat turned down(no heat demand) the combustion fan cycles on/off every few… read more
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I have an Armstrong Ultra SX 80 furnace. T-stat calls for heat,
I have an Armstrong Ultra SX 80 furnace. T-stat calls for heat, unit goes through normal sequence of events, burners fire and everything runs normally for about two minutes or so... Then the Honeywell… read more
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Meet the Experts:

Phil

Phil

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Matthew

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Brian HVAC Guy

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Rick Ridley

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Tom

Tom

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