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Unit is not cooling; Cool and Heat lights are on. What is the problem?

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
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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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  • 8 Answers

SOURCE: no heat coming from central air unit when heat is turned on.

check t stat make sure its set up for you system some stats have to be set up for a heatpump or iits gas or electric heat

Posted on Mar 13, 2009

mcgyver468
  • 710 Answers

SOURCE: my heat pump won't cool my house. I have a

Warm air should be blowing out the outdoor unit. Have a technician evaluate if the compressor is functioning. There are many reasons why the compressor is not working. One of them being a start capacitor not working. Another being out of Freon due to a leak. Good luck

Posted on Apr 25, 2009

  • 81 Answers

SOURCE: which symbol is cool. Such as I feel cool, heat,

COOL is the snowflake, I feel is a four arrows which looks likea square, HEAT is a sun and Dry is a water droplet
Hope this helps
May

Posted on Jul 16, 2009

  • 232 Answers

SOURCE: no heat need a wireing diagram 1997 package unit

impossible to get wiring diagram without model or manufacturer

Posted on Nov 21, 2009

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Typical Thermostat Wiring for 4 or 5 wire Heat/Cool Thermostat (not heat pumps)
4 Wire Termostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
with one transformer for both units
Rc One Side of 24 volt Transformer
Rh Jumper Rc to Rh
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
With 2 transformers one for indoor unit
And one for outdoor unit
Rc = Red One Side of (outside) 24 volt (outside transformer)
G = Green Blower (outside transformer)
Y = Yellow Cool (outside transformer)
Rh = Blue One side of (inside) 24 volt (inside transformer)
W = White Heat (inside transformer)
COOLING ONLY Thermostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
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R or Rh One Side of 24 volt Transformer
W = White Heat

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1 Answer

How do you wire a honeywell round mechanical thermostat


What are you trying to wire up?
Typical Thermostat Wiring for 4 or 5 wire Heat/Cool Thermostat (not heat pumps)
4 Wire Termostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
with one transformer for both units
Rc One Side of 24 volt Transformer
Rh Jumper Rc to Rh
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
With 2 transformers one for indoor unit
And one for outdoor unit
Rc = Red One Side of (outside) 24 volt (outside transformer)
G = Green Blower (outside transformer)
Y = Yellow Cool (outside transformer)
Rh = Blue One side of (inside) 24 volt (inside transformer)
W = White Heat (inside transformer)
COOLING ONLY Thermostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
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W = White Heat

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1 Answer

Trying to figure out thermostat wiring diagham on a split system


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4 Wire Termostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
with one transformer for both units
Rc One Side of 24 volt Transformer
Rh Jumper Rc to Rh
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
With 2 transformers one for indoor unit
And one for outdoor unit
Rc = Red One Side of (outside) 24 volt (outside transformer)
G = Green Blower (outside transformer)
Y = Yellow Cool (outside transformer)
Rh = Blue One side of (inside) 24 volt (inside transformer)
W = White Heat (inside transformer)
COOLING ONLY Thermostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
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A multi split system is it? One of the reasons why the light flashes is because one indoor unit is on cool and the other is on heat. Changing the one on cool (or on heat) will fix this. Both indoor units need to operate on the same mode.
Mat

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2 Answers

Hi- Can not tell if my unites are straight cool / heat or a heat pump.


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