Question about Honeywell CT87B ROUND HEATING&COOLING MECHANICAL THERMOSTAT - WHITE Heater

1 Answer

Heat rising furanceon constantly

Xr90
changed batteries in thermostat

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,515 Answers

Hi, There are so many safety controls on most heaters that are designed to shut down the heater if something like this were to happen. I have only seen this happen once in 33 years where the residents were gone shopping, and the heater did not shut off. The plants were all dead as were there pet bird. I believe what is happening, if the thermostat is good, you have a wire in the thermostat cable touching together somewhere. The Red wire to the White which will cause the unit to run all the time. I would first turn off the power to heater and pull the cover and the front of the stat off to excess the wires. Take loose the red wire and it should shut off after a time delay. If it does shut off then the thermostat is faulty. If it continues to run and heat, look closely at the wires at the stat to make sure they are not touching together some where. Check at the heater also where the stat wires come in to see if they are touching somewhere. If you can't see anything, take the red wire off at the heater where it terminates to unit and this should stop the unit. If it does you will know that the wiring from the heater to the stat is touching in the wall somewhere. We use an ohm meter to check continuity on the wires to see which ones are touching. If the heater continues to run with the wire disconnected from it, depending on the age of the unit and if it has a circuit board on it, it would have a shorted connection from hot to w or heat. I would say you have a faulty stat and or wiring touching somewhere calling for heat to be on all the time. This is all it can be. Do the checks I have said and keep me posted on how you are doing. I will wait to hear back from you.
Good Luck,
Shastalaker7

Posted on Jan 18, 2010

Ad

1 Suggested Answer

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 there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Skytech receiver batteries keep going dead


Joe,

The heat from the fireplace can have an adverse effect on the life of the batteries. Sometimes simply re-positioning the receiver to a cooler location under the firebox and/or adding a heat-shield can improve battery performance with the Skytech remote receivers.
As a test, you could even place the receiver outside the fireplace for a period of time to gauge the effect of heat on the unit.


According to the owner's manual for the Skytech 3301 Thermostat Remote:


"For REMOTE RECEIVERS that operate on BATTERY POWER, these heat conditions can cause batteries to discharge when temperatures exceed 115 degrees F. Studies show that alkaline batteries, when exposed to a constant temperature of 120 degrees F, can lose up to 50% of their operating power. When the battery cools down, it will partially recharge itself, but constant heating and cooling will reduce the battery's normal life expectancy."

Hope this helps!

Dec 01, 2012 | Skytech 3301 Thermostatic Gas Fireplace &...

1 Answer

Trane xr90 furnace keeps on running


Well my friend, the thermostat board of land in the interior michanimatos.echei two thermistors, what the problem is the bronze thermistor.take it from there which is anchored in the thick pipe that leaves the air conditioner and is connected to the outdoor unit. check this option if it works and if it works changed the thermistor.

Apr 07, 2012 | DeLonghi Trane 5t Rooftop Air Conditioner...

1 Answer

Hi: Last week, a contractor installed the above-mentioned new 16 seer heat pump, an air handler and a heat kit. Our house has 3 levels, each about 800 square fit. Initially the house would not heat above...


That is worrysome about putting refrigerant in hap hazzardly... There is a math style process involving pressures and temperatures in two locations that dictate how much ref. goes in. Anything else shows clueless installer. Too much or too little ref. will not work correctly.

Heat pumps do not work below about 33 degrees outside temp. Above that them, aux heat should not be coming on...

You would need to verify that the system you have is rated for the space that you are trying to heat...

Heat pumps heat more slowly than gas or electric, so using set back thermostat is not recommended. True economy comes from maintaining constant temprature. System has to work to hard to raise the temprature, and eats up savings in efficiency by allowing temp set back.

Feb 14, 2011 | Heating & Cooling

1 Answer

Coolant temp guage will not rise. heat blows cool.. when coolant guage does rise heat blows hot. doesnt always rise.what do i do or fix


Most likely, the engine thermostat is stuck open or missing. Changing the thermostat (or installing one) may solve your problem.

Jan 24, 2011 | 1998 Ford Windstar

1 Answer

Car revs up on its own, and also the temperature gauge never rises. it is always on zero.


If temp. guage never rises...most likely the radiator thermostat is stuck in the open position, therefore always running coolant thru the motor. Kills your gas mileage, because the engine is always running cold. And you won't get much heat when you turn the heater on. If this is so, have the thermostat changed.

Apr 01, 2010 | 2000 Dodge Intrepid

1 Answer

The freezer temperature changes sporadicaly. It


The temperature would charge due to change of cycles in the refrigerator operation. For example, the temperature would slowly rise if the compressor has shut off. Also, the temperature would rise significantly during the defrost process. A heater is activated at the evaporator coil to thaw the ice that forms there. This heat would transfer to the freezer unit and would cause the temperature to go up.

As long as the cycles are constant, and the temperature does not rise significantly and keep rising for a long period, there is no problem.

Oct 19, 2009 | Refrigerators

1 Answer

Carrier furnace blows heat constantly!


recheck your wiring iunside of the furnance around where yuou were working, you may have wired it wrong.

Dec 15, 2008 | Heating & Cooling

Not finding what you are looking for?
Heating & Cooling Logo

47 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honeywell Heating & Cooling Experts

Bill Long

Level 3 Expert

588 Answers

Paul Carew

Level 3 Expert

3390 Answers

vance jones

Level 2 Expert

120 Answers

Are you a Honeywell Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...