Posted by Geo-TH,In on January 20, 2019 at 09:13:09 from (50.102.7.22):
Two different people were told they needed a new furnace because they had a cracked heat exchanger by two different HVAC repairman.
I told both people to call the gas company. The Gas company will be there immediately and check for a CO leak.
This morning I went to my friends house, the guy with horses, to deliver him 2 electric space heaters, a digital CO detector and looked at his furnace.
The HVAC repairman left the hose off the pressure switch that detects if the fan is running and sucking the exhaust out of the condensing furnace. So I removed the pressure switch. When I turned it upside down, condensat ran out. That's a NO, NO. I sucked gently on the vacuum side and switch closed like it should. Business must be slow and he wanted to replace the furnace.
After removing water from switch, I put hose where it belongs, and furnace fired up. Digital CO alarm showed no CO. If there was any CO I would detect it, instant headache like I get with diesel exhaust. He's going to confirm CO by calling gas company.
WHO CAN YOU TRUST?
Have you been a victim of a repairman's scam? I told friend he needs to clean drain line which is also used as evaporator drain that tends to choke up.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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