Search: Posts Made By: tetra
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10-09-19, 12:51 PM
Replies: 28
Views: 365
Posted By tetra

...come to think of it though, when I checked...

...come to think of it though, when I checked voltage across the motor - I had that lower blower door off and that safety switch was not closed so I guess it was not getting power because of that. I...
10-09-19, 12:33 PM
Replies: 28
Views: 365
Posted By tetra

Across the white and black wires coming out of...

Across the white and black wires coming out of the blower.

I had a guy check the cap, he said it was measuring about 5 volts when he removed it from furnace.
10-09-19, 12:19 PM
Replies: 28
Views: 365
Posted By tetra

Yes Pjmax I am pretty sure the relay closed when...

Yes Pjmax I am pretty sure the relay closed when the heat was switched on - I heard a clicking. The blower door was on and I think there is a switch that closes when that lower door is on.
10-09-19, 12:15 PM
Replies: 28
Views: 365
Posted By tetra

It does not make sense though that the motor...

It does not make sense though that the motor would hum if it's getting no voltage...
10-09-19, 12:12 PM
Replies: 28
Views: 365
Posted By tetra

Are draft inducers for this furnace hard to find...

Are draft inducers for this furnace hard to find and or expensive?

I am thinking its the draft inducer because the inducer motor hums when getting power...when i toggle the thermostat on that is...
10-08-19, 03:31 PM
Replies: 28
Views: 365
Posted By tetra

No voltage across the black and white wires frm...

No voltage across the black and white wires frm inducer when furnace is turned on...
10-08-19, 03:09 PM
Replies: 28
Views: 365
Posted By tetra

PJMax, I assume by draft inducer motor...

PJMax,

I assume by draft inducer motor wires, I assume you mean these B & W wires coming off of the blower shown in this pic is this correct?
10-08-19, 02:01 PM
Replies: 28
Views: 365
Posted By tetra

The switches you labled "flame rollout" and...

The switches you labled "flame rollout" and "limit" switches are both shorted.
10-08-19, 01:57 PM
Replies: 28
Views: 365
Posted By tetra

Here is the schematic. I'll check the...

Here is the schematic. I'll check the contiunity...

109748
10-08-19, 01:18 PM
Replies: 28
Views: 365
Posted By tetra

I followed the two red wires you mentioned - the...

I followed the two red wires you mentioned - the wires that look like they are coming out of the gas valve but are actually coming out of the second component mounted to that plate. The first pic in...
10-08-19, 01:13 PM
Replies: 28
Views: 365
Posted By tetra

Yes when ever we started it up we hear a clicking...

Yes when ever we started it up we hear a clicking sound so I assume that is a spark igniter?
10-08-19, 01:03 PM
Replies: 28
Views: 365
Posted By tetra

I did check the gas valve, it is the 36E36 just...

I did check the gas valve, it is the 36E36 just like the manual says on page 29...is that the spark type?
10-08-19, 12:56 PM
Replies: 28
Views: 365
Posted By tetra

If by switch you mean the rectangular black block...

If by switch you mean the rectangular black block shown above the gas valve block - the black box with the two red wires attached, I did put an ohm meter across the two contacts and the switch seems...
10-08-19, 12:31 PM
Replies: 28
Views: 365
Posted By tetra

...When I put my hand on the back side of that...

...When I put my hand on the back side of that gas valve block - the block where the light blue colored on-off dial is located for the gas shown in the first pic (I assume that is what you refer to...
10-08-19, 12:25 PM
Replies: 28
Views: 365
Posted By tetra

Thanks much. Are there pics in the manual...

Thanks much.

Are there pics in the manual that show the location of the two switches? If so what page(s)?
10-08-19, 10:48 AM
Replies: 28
Views: 365
Posted By tetra

Gas furnace won't start

Greetings. We have a Sears furnace manufactured by Inter-City Products - photos attached.

Although 25 years old, much of the furnace has been recently upgraded - like within the past 5 or so years...
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