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I have a 12 fin Radia Delongi oil heater that is about 4 years old. For a two week period there had been the odd whiff of fuel type small when the heater was on then one evening the lounge absolutely stunk of this smell and we had to air out the room all evening to get rid of the small. We turnrd the heater on the next day to teat it to find it didn't work. Is it completely kaput or can it be fixed. What do you think caused the presumed oil leak? There was no evidence of fluid leaking from anywhere. I have already emailed DeLongi and haven't heard from them. I would really appreciate a response. Thanks, Trudi Hill.

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SOURCE: Fujitsu wall mounted air conditioner leaks into the room

Make sure the unit is level, this is very important. Check for blocked drain tube, which runs from the bottom of the drain pan under the cold coil to the outside. Clear tube with a piece of coathanger wire, be gentle.

Posted on Jul 15, 2007

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SOURCE: AC doesn't blow cold air

Threr are suppose to be two sounds comming from the window unit. One, the fan sound and the compressor sounds, (this compresses the refrigerants aove room temperatures (around 240*) & send it to the back coils and remove it to room temperatures and send it to the front coils which if enough freon, it will cool to at least 40*. Turn the thermostat all the way up or down while its off and see if you hear a clicking noise which tells you the thermostat is working which that what calls for cool. If it started loosing cools little by little, then you have a leak, and leaked all the freon out! If it stopped cooling all of once, then your compressor is not kicking in.

Posted on Jun 18, 2008

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SOURCE: Fair price to fix central air conditioner leak & refill with freon

I have heard that there is a spray you can use that will not damage your system and seals the leak when it comes in contact with oxygen

Posted on Apr 09, 2009

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SOURCE: regarding the delongi pac 50 is it vital to have

The water in the machine comes from the cooling coil, and is condensate. This happens with all cooling systems. And no, no water in the cup will not burn the machine up.

Please reply if you are having problems with the unit.

Posted on Dec 17, 2009

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Not quite sure what is asked, but if you just need to turn off the airflow a breaker or fuse box should be nearby. Flip the breaker and/or remove the fuse. Fuel oil is always dangerous... even a small amount. The lines will still have vapors. Best to remove this unit or flush out the tank and lines and block it off.

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Good job, on cleaning the air intake filter. Some folks overlook that. Since that helped some, I believe you need to clean a little further. Like the cooling coils and the cooling fins for the compressor. But, before attempting any cleaning turn the Master ON/OFF Switch to OFF and unplug the unit from the wall outlet.

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Completing this Annual Type Maintenance should provide significant results.

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I've got a Heller 10-fin standing oil heater, H-2400T. I would love it if someone can show me where to find the online instruction manual for this. Or just explain how to make the timer function work....

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Jun 13, 2011 | Heating & Cooling

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Following removal of filters from Rinnai gas heater (2 years old), I vacuumed both filter and back of gas heater but it still smells ilke gas when filters putr back on and heater tunred on.

Although you cleaned the filter and vacuumed the outside of the heater, there is probably a dust and dirt build up inside the heater, that also needs to be cleaned out. A dust build up can clog the burners so that they do not burn cleanly and thereby produce a gas odor, Be sure you turn the heater OFF and let it cool completely, before removing the heater's cabinet. A Shop Vac with a brush attachment on the hose and a can of compressed air with a straw nozzle (like you clean your computer with) works well in performing the cleaning process. Be sure to not only clean the burners, also clean the pilot and the pilot assembly.

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Hope this helps you further troubleshoot and solve the problem. Please let me know. Thanks.

May 07, 2011 | Rinnai Heating & Cooling

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My Reddy Heater 50,000 btu kerosene heater does not ignite when turned on and shuts off after about 4 seconds. Could it be that it is too cold? It has been in the garage during freezing temperatures, but...

Take the top of the heater off. It should be about 6-8 screws holding it on. Be careful around the fan and plug the heater in. Check for the igniter sparking if it is the spark plug type or glowing if it is the HSI(hot surface igniter) type. If it isn't, check the gap on the spark plug and you will have to check the transformer for it also. If it is a HSI, make sure it is broken. This type is very brittle and easily broken. Next use a flashlight to look for fuel spraying from the nozzle. If it isn't, the fuel nozzle may be clogged. You can use a very small piece of wire to push through the nozzle to clear it. Also check the fuel filter. You can check for water in the fuel tank too. If it's really cold it could be frozen blocking the fuel flow. If you still don't have fuel flow, check the air filters. There are 2 on the back of the fan motor. You will have to remove the black cover to see one of them. Let me know what you find if you don't get it fixed.

Jan 09, 2011 | Heating & Cooling

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MPI Monitor 422 Does it have a filter? If yes, where is it located?

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2 year old heat pump. had constant problems with both units. Have had 3 different HVAC groups out of time to evaulate problem. Replaced compressor on small unit this past summer and thermostats on both...

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2 Answers

Troubleshooting airconditioners

take the case off.
look at all the filth in the back fins.
get that out without puncturing anything
or cutting your fingers, or breaking the fan, etc.

Use a hose and MIST spray.. a hard spray will bend the fins
Use 2 dull hacksw blades to straighten fins if many squashed.

Bonus: find the oil hole caps on motor, open, add oil (10w30 fine)

Of course this wont work for punctured units, dead motors, compressors, etc.. but filt is your #1 A/C killer.

Get cleaning! Do it once a year, before it gets hot.

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