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Hi 48 000 btu daytek cassette is running for 10min on cooling then stops running inside and outside and ared light comes on on the indoor what can be the cause

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6ya6ya
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Posted on Jan 02, 2017

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Therinnaiguy
  • 1420 Answers

SOURCE: no cooling after power out, indicator lights pattern not in manual

The Mitsubishi units have to be reset by turning off the indoor units by switching the remote or thermostat to off. Then turn off the breaker to the outside unit(s). After 30 seconds,turn on the breaker and then you can turn on the remote for cool. If no lights come on on the inside units, most likely you have blown a fuse soldered on the main PC board. At this point, call your technician. A goos tech will be able to wire in an in-line fuse holder so if it should happen again, you can easily replace the fuse. If you do see a light or two come on at the indoor unit but the outdoor unit does not start after 3 or 4 minutes, sounds like you will need to call a technician. Most likely you have a blown fuse on the main PC board of the outside unit. It is not an easy one to replace. Good Luck!

Posted on Sep 04, 2007

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SOURCE: AC Compressor running outside but no air coming out of inside vents.

Can you say, WOw, Icould've had a v-8 moment! I think you answered your own question or you are not far from the answer. (let me direct you, either the thermostat or the little door on the duct going to your room! Thank-you-very-much!

Posted on Aug 25, 2008

mastatech
  • 478 Answers

SOURCE: Amana 1 ton Residential AC / Outside unit comes on for a sec

open the service panel to check for control voltage of 24volts when tstat calling, The contactor should be pulled in, if contactor is down,and contacts appear to be clean, and the unit is still not running, it is a bad compressor. to test this unplug the black wire from the compressoror at contactor,w/ power off! Turn on power if fan works normally it's a bad compressor. However if you see a swollen split cap(5 wires to a soup can looking w/ the terminal C,F,and Comp), switch it first and start at square one.
You also need to consider the high pressure switch if its cycling on off on off.

Posted on Mar 12, 2009

  • 127 Answers

SOURCE: ac not blowing cold after outside temp reaches 98 degrees

Sounds like you have dirty condenser coils. Remove the upper shroud and check the condenser for clean. Take a water hose and gently spray out the coils paying special attention not to bend the coils over with too much pressure. This will allow more air movement through the coils and give you better cooling efficiency.

Hope this helps,

Jeff

Posted on Jun 29, 2009

motor1258
  • 6674 Answers

SOURCE: Duo Therm RV air conditioner inadequate cooling

The rule of thumb is 20F difference (lower) than ambient temperature. Most manufacturers will tell you 20 F degress is about normal. In your case it does sound a little warm, but I need to ask, sorry. Was it working o.k. before in same basic temperatures? Have you cleaned coils & fins good on Evaporator & condenser recently? Have you removed filter inside & cleaned it as well, and looked to see if coils are frosting up by chance? Is this a ducted or non ducted system? I'm guessing on a 5th wheel, it is ducted, so make sure you have good discharge on all of those as well. Any blockage or restriction on the discharge side will also cause the problem. Keep me posted on what you find.

Posted on Sep 01, 2009

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