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I have repaired a pin hole leak in my radiant floor heat and now need to restart the system. What is the next step

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Isolate that loop and perge the air or hope your system can do it for you dan

Posted on Jul 18, 2008

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I have a Lg Multi v heat pump. we had a freon leak, evacuated system and recharged but now can't get any heat or cool out of it. It runs continuously and shows no codes. pipe is really hot ne

I'm a retired and certified HVAC&R Technician. You only indicate that you "evacuated the system and recharged it." If that is all you did, then you have problems. Where was the Freon leak? What was done to repair the Freon leak? When you evacuated the system, did you then pull it down to 28 inches of vacuum? If so, did you ensure it held 28 inches of vacuum for a minimum of 30 minutes? Then, did you charge the system with 250 psi of Nitrogen and ensure it held for 30 minutes? If so, did you then release the Nitrogen and pull another 28 inches of vacuum prior to filling the system with Freon? These are the steps I used EACH AND EVERY TIME I EVACUATED A SYSTEM; and I only had a problem ONCE where the copper tubing got extremely HOT and the system would not HEAT or COOL. Found out the reversing valve was stuck half way. Had to replace the reversing valve. Good luck.

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Loud clicking when the furnace turns on to send hot water thru the radiant heat tubing in floor

Is it a relay clicking or tubing expansion clicking???

Could be a relay going bad or a weak transformer... or nothing more then a pipe very tightly resting on something and expanding...


Apr 24, 2011 | Air Conditioners

1 Answer

Intertherm electric / hydronic baseboard heaters. Tenants are complaining it's producing a smrll that's causing headaches.. I turned it on and yup it's defiently has a smell.. almost like a antifreeze...


There is nothing you can do if they want heat....the convection currents are what heats the air naturally rises and the cooler air falls to the floor... can't change nature...


Dec 11, 2010 | Air Conditioners

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It is leaking all over the place......since the floor is on a slant, the water ran down to the lowest point; created quite a flood and now the floor needs replacing....but I will not repair the floor until...

Sounds like your condensate drain line is clogged. This should be easy to find and fix. It probably has gunk in it that can be blown through the line or you can use a coat hanger wire. you can pour a couple of ounces of bleach into the condensate pan to keep that stuff from growing in the future.

Sep 10, 2010 | Air Conditioners

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I have a pin hole in my copper pipe

first of all shut off the water to the area and see if the flow has ceased, if you still have a trickle of water you will not be able to solder the pipe. Any water flow will make the repair impossible. If you can get the water to slow to a trickle you will need to cut the pipe in half and solder a sleeve in its place at the cut. once the pipe is cut you can take a peice of bread, yes bread, and pack the incoming water side and this will stop the flow long enough for repairs to be made. The bread will break down to minute particles after the soldering is done and shouldn't hurt the system at all. If it is impossible to cut the piping at the area there is a pipe patch that you can purchase at most local hardware stores the wont require the water to be shut off however, this is a temporary repair and may start leaking again in the future. Good Luck on your repairs Hope I have helped you some


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Wall a/c is leaking water down log wall and puddling on floor.

When you sealed the holes outside, you trapped the water inside. The unit is designed to let the water run to the bottom of the pan and then go out the holes outside. Try unplugging one of them and see if that fixes the problem. Hope this helps.

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Honeywell T8400B Thermostat Display Intermittently Blank

most likely a bad tstat i would replace I recommend honeywell focus pro 6000

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1 Answer

I have a radiant floor heating system with a wirsbo control system, i keep having to reset the system to get the zones to heat up again. The broiler is working fine. The first time I reset the radiant heat...

Is this a water circulating system? If so there are bleeder ports on your radiant heating zones on the floor that you can bleed the air out of the system. They look like a tire air pressure valve. Depress the valve core with a small screwdriver or something of the same nature. You will hear air coming out and water will come out. This is done while system is running. Also it may maybe under pressurized, circulating pump could be shutting down. Does the boiler keep running or shut down on reset. If it does could be within the boiler itself. Please rsvp with more info.

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Evaporator Coil

Yes, just count how many pins per inch and replace with the same number of pins per inch.

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Ruud UBHC-17AOONFA heat exchanger

Instead of air , it uses water to extract heat and send it thru the tubings.

Jul 11, 2008 | Ruud UBHC Air Conditioner

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