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Post by greybeard on Dec 11, 2019 22:30:05 GMT -6
 Reminds me of........  |
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Post by greybeard on Dec 12, 2019 15:12:39 GMT -6
The 2 in the background appear to be working on a torpedo heater. Did you get it fixed...do you know anything about them? (I have one giving me some trouble with a really weird symptom) |
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Post by angusrancher on Dec 12, 2019 16:10:45 GMT -6
I'll ask the boys. I'm thinking they didn't. What's your doing?
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Post by greybeard on Dec 12, 2019 19:48:57 GMT -6
Has a power switch, an adjustable 40F-110F thermostat on it and power on indicator lamp (green led) It works great..............as long as one parameter is met. Ambient temperature has to be below 47F for it to kick on. Otherwise, the light comes on but nothing else happens. Brand=Master (made by Pinnacle) Model is MH-75T-KFA. The ambient temp must be below 47 deg F for the ignitor to come on, motor to turn on and for it to work. If the temp is below 47degF it works fine, regardless of where I set the thermostat (providing I don't turn it down below ambient temp.) If ambient temp is below 47 degF and I set the thermostat to 100, it will run till I either rotate the thermostat down or until it runs out of fuel IF the ambient temp is or stays below 47. Once the temp reaches above 47, the unit shuts off, the green light stays on but the unit will not restart. I feel the thermostat is working correctly but whatever tells the PCB what the ambient temp is may not be working right. Boxed in red or yellow in the diagram above are 2 suspects. In red, is the thermostat limit control, which I would call a thermister and it is mounted just below and behind the fuel nozzle. It's always been my belief that it's job is to protect the unit from extreme temps if too much fuel enters the combustion area, but it may be this is what somehow senses ambient temp as the air is blown into the chamber.?.  The thermostat limit control:   In Yellow, is what the diagram refers to as a 'room sensor'. I can't find anything on it in my research. This is it. Sits right at the rear of the heater, kind of under the air pump but in the fan's air stream. Looks to be a thermister like you might see on a freezer's evap coil.  The board.  I can check the resistance in both the thermostat temp control limit and on the little thermister, but not knowing what the values are supposed to be for any given temperature is problematic and Pinnacle isn't very helpful with their tech help. |
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Post by M-5 on Dec 12, 2019 20:11:16 GMT -6
Temp sensor looks like the one on a cloths dryer. They are cheap best I can remember it's been a few years since I had to replace one
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Post by greybeard on Dec 12, 2019 20:38:06 GMT -6
I posted the wrong picture for the thermister/room sensor. Here's what it is...just a little black bulb looking thing on the end of a 2 conductor wire:  |
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Post by angusrancher on Dec 13, 2019 7:48:31 GMT -6
They got the one in the picture running. Just replaced the fuel line.
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Post by greybeard on Dec 13, 2019 19:51:52 GMT -6
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Post by fence on Dec 14, 2019 11:10:21 GMT -6
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Post by tcranch on Dec 17, 2019 7:04:40 GMT -6
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Post by fence on Dec 18, 2019 11:15:44 GMT -6
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Post by dave on Dec 19, 2019 18:15:19 GMT -6
Fall pairs that spend the winter on my place waiting for the feed wagon to show up.
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Post by greybeard on Dec 27, 2019 11:01:04 GMT -6
I guess you would call this a hard wood tree.........  |
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Post by angusrancher on Dec 28, 2019 6:42:59 GMT -6
Imagine the pain and agony when you cut that off.
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Post by angusrancher on Dec 28, 2019 18:11:44 GMT -6
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