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Runs but no heat unit turns on fan runs but no heat comes out

I turn up heat setting and still no heat

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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fwadley
  • 482 Answers

SOURCE: Light goes on and off

If the power comes on the power box, that is good, so the only the is the mother board is bad, replace it. they have nubers on the that tell you what kind it is. search the web, you can find the new on ebay check, and you can put it in your self and save time and money.

Posted on Nov 28, 2007

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hotuna
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SOURCE: thermostat does not stop heat pump unit

Most of these problems are the program settings on these way overcomplicated thermostats. You will need to re-read the instructions on setting the programs. Or bite the bullet and buy a cheaper and simpler one. If you installed it yourself, make sure the settings on the inside are correct, like gas/electric heat, and 24 volts, stuff like that.

Posted on Mar 14, 2008

  • 4 Answers

SOURCE: Cooling fan on Philips DVDR3576 runs on when the unit off?

I noticed the same thing on mine. I determined that the unit turns on the fan AND Hard Drive during the period of 11:59 to 12:00 BOTH AM and PM and continues to run until the unit is cycled on and off either with remote or by a program. I used a stethoscope to listen to the Hard Drive humming inside; when the unit is cycled off I could hear the Hard Drive shut down, and a second or 2 later, the fan shuts off. I had purchased several other new units thinking I would return the "defective" one. Testing them, (by setting the clock to 11:57 and wait) both other 2 units did the exact same thing. So I assume that's a software "oops" on probably all units.
My "solution" is to set up "dummy programs" to record for 1 minute after those time periods: like 12:03 to 12:04 AM and PM on a daily schedule, and I pick a channel I usually don't record. The 00:01:00 recording time and "special" channel number make it easy to quickly identify the unwanted "dummy programs" and I use the "multiple title delete" feature to periodically delete them.
So I accumulate 2 titles per day, but I prefer that to having the hard drive run all the time.
Incidentally, I talked to a sevice rep at Philips, and the only thing they could offer is to set up a return for refund. The Philips 3576H is, in my opinion, a fantastic unit and I think the little glitch is well worth the benefits of the features it provides. How did I ever live without it???

Posted on Apr 10, 2009

farfield
  • 462 Answers

SOURCE: ruud UAKB-018JAZ outside condensing unit will not run

Trace the wires (small cable) going to the out door unit. This is your 24v control circuit. when it enters the outdoor unit it ties to wires routing through the inside of the unit trace these down. For AC units 1 usually goes directly to the "contactor" (the item you push in and the unit runs?) the other wire can also go to the other side of this same item. But I suspect it goes through other tings before it finally gets there.
Some items are the high and low pressure switches and a delay timer.
A red button sticking out where you can reset it is the high pressure switch and if it clicks and lets it come on you may have a dirty outdoor coil or a fan motor outdoor that is not operating all time.
A low pressure switch has no reset normally on AC or HP.
A delay timer will have 2 3 or 4 wires depending on the type of timer. 1 of these wires goes to the contactor (usually) and one of them feed this wire. remove the wire going to the contactor. now 1 at a time take the other timer wires and touch them to the wire just removed. if the times is bad the contactor will click when you touch one of them with the removed wire.

If its a heat pump you will have to make the contactor try to come on around the board. and this you will need some knowledge on which and what feeds your contactor. Here Id suggest a technician. If I had a way to see your setup and wiring I could talk you through this but its too hard to type and would take way too long.

Posted on Jun 27, 2009

projdoc
  • 2237 Answers

SOURCE: Lightware vp800

blow out the dust, check the fans, and then replace the thermo sensor if necessary

Posted on Dec 22, 2009

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1 Answer

My fan runs all the time...Heat works fine


Check on t-stat that you are on fan auto setting not fan on if you are on fan auto either t-stat failing or fan relay at indoor unit is stuck on .first turn high voltage off to indoor unit go to t-stat and remove wire from
the G terminal should be green in Color.make sure it is not touching any thing turn high volts back on if fan stop need t-stat if fan still runs need fan relay hope this helps

Feb 27, 2015 | Heating & Cooling

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RV. when furnace is turned on , fan on rooftop AC unit runs continually


i would say its the relay board or communication cabl between stat and board.

Jun 18, 2014 | Dometic Rooftop RV Air Conditioner

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Heil epm36f19a1 runs but no heat


Fan relay is stuck among other things. The thermostat turns on the combustion air fan and puts power to the spark unit. If the burner comes on after the temperature in the heat exchanger rises the indoor fan will then come on. After the thermostat comes to temperature the power to the gas valve which shuts off the burner. Then after the heat exchanger cools a bit the indoor fan will stop. That's the sequence of events. look at the switches that control the fans. There is a wiring diagram somewhere on one of the panels that access the unit for service.

Mar 06, 2013 | Electronics - Others

1 Answer

My ac is not on auto but it keeps turning off and on


Typically a thermostat has three settings. fan setting -on / off. System setting -heat / off / cool. and your temperature settings. Does the outdoor unit turn off and on but the fan runs, fan setting is on. Check your thermostat settings.

Sep 15, 2012 | Haier Heating & Cooling

1 Answer

Have installed a new Honeywell thermostat. The fan does not turn off even when the room has reached the desired temperature. I originally replaced th ethermostat because the old one the fan ran forever and...


Most T-Stats have a On / Auto on a forced air system. On means the fan will run all the time even if it is not calling for heat. Auto only runs when calling for heat. Does the fan turn off in the auto mode at all? To test it...BE SURE THE FAN IS IN THE AUTO MODE ON THE T-STAT... Turn the thermostat all the way down and keep it there for appox 15 mins. If it is wired properly and the fan limit is set properly the fan should turn off. If it doesn't it is not the thermostat were the problem lies.

Most forced air units have a fan / high limit switch. There is a setting on the switch for the fan to turn on and a setting for the fan to turn off or it has a setting and a differental switch for it to turn off/on. Example - the fan comes on when the temp in the heat exchanger reaches 110 degrees F and will shut down at 95 degrees F after the thermostat is satified...this would hav a differental of 15 degrees F. It may be set to low and the fan continues to run long after all of the heat has been removed from the heat exchanger. This in turn will cause cool air to be coming out of the registers.

Mar 09, 2011 | Honeywell CT87B ROUND HEATING&COOLING...

1 Answer

Fan runs all the time can't get heat or ac to turn on have to unplug heater at outlet to turn fan off


Does this unit have a thermostat on it.If it does there may be a fan run position where the fan would run as long as power was on .See if there is seperate setting for heat and cooling and try them.Hope this helps.Thanks.

Nov 08, 2010 | Heating & Cooling

2 Answers

Carrier 38CKC042300. oUTSIDE UNIT FAN WAS TURNING REAL SLOW. ac UNIT IS OFF BUT FAN TO OUTSIDE UNIT IS STILL TURNING. sHOULD NOT BE TURNING AT ALL WITH AC UNIT OFF


The outside fan may run if the unit is in defrost mode this is normal for most heat pumps it is there way of trying to keep the outside unit from staying iced over so the next time the unit runs it will have air flow through the coil and the ice will not be there to prevent air flow.

Jan 12, 2010 | Carrier 38CKC042 Air Conditioner

2 Answers

My air handler comes on ,not the outside unit when my thermostat is in the off position even if i turn the thermostat down to 50 and have it turned off the air handler comes on for about 5 to 10 minutes...


If you have a standard thermostat the fan switch is for the air handler only. It completely over rides the thermostat for most settings. Now lets see this is what I'd expect:
fan switch on Indoor fan runs all time
Fan switch auto Indoor fan only runs when thermostat is set to cool or heat and the thermostat is turned up above room temp for heat or below room temp for cooling. In both of these modes the furnace blower comes on and stays on til the room temperature is satisfied. The outdoor unit only comes on for AC the out door unit will not come on for heat or the "on" setting on the thermostat. See exception 1 & 2 below...

Exception 1- (in a heat pump the out door unit runs in both heat and cool mode unless it has emergency heat turned on then it will not come on outside in the heat mode, and depending on the type of heat pump and furnace or air handler it is). A heat pump thermostat usually has "backup heat" and an "emergency heat" setting switch on the thermostat.
Exception 2 - On some thermostats they are made to cycle on the heat if the temperature reaches a preset temp (around 50'f usually but definitely by 40'f). This mode prevents freezing when if instance the homeowner is away or while the home is under construction. In this mode the fan inside can run but the heat usually comes on with it.
Exception3 - On some electric furnaces the heating strips may be individually controlled and thus not all come on at one time. This may give the feel of no heat especially if the room is cold.

Now there may be other exceptions but Ive tried to give you a heads up on some of the most common ones.
If you need more help please post more specifics about your unit/system as to for sure what switches are set to what setting and what is happening with each. My first though was that maybe your system is OK and you needed to know if the thermostat was working properly.

If this helpd you understand your problem would you please give me as hifgh a mark as you can. Thnaks for using fixya and good luck.

Mar 28, 2009 | Carrier Heating & Cooling

1 Answer

Rheem heat pump. blower will not turn off


The fans are set to delay for 60-90 seconds to remove all heat from the heat exchanger/heater elements.

If the fan runs any longer than 3-4 minutes after the Emergency Heat shuts off, you may have a bad sequencing relay in the air handler.

Jan 27, 2009 | Heating & Cooling

2 Answers

Air conditioner fan will not come on and unit will run for 1 minute and stop


You hear the compressor kick in (Hum) but no fan comes on? Will the fan come on when just in fan mode, not cool, or do you have that set-up?

Aug 13, 2008 | Dometic Rooftop RV Air Conditioner

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