Question about Fahrenheat FUH5-4 Heater

Open Question

Fahrenheat FUH 5-4B thermostat turns off at 40 degrees.

I have had this wall mounted unit in my garage for 7 years and it has worked well. This winter, the heater is shutting off at 40 degrees. Should I replace the thermostat?

Posted by on

5 Suggested Answers

Buffalo12980
  • 625 Answers

SOURCE: Fahrenheat 4000 watt wall mounted heater shuts off and needs reset

the reset is probably an inline circuit breaker. if you can get hold of am amprobe clamp around ammeter, check the current when the unit is running at full power. the reading you get check against the current rating of the inline breaker. your fan motor bearings may be dry increasing the current draw of the unit and tripping the breaker. try oiling the fan bearings with a light oil NOT WD-40.

Posted on Dec 07, 2007

Therinnaiguy
  • 1420 Answers

SOURCE: Fahrenheat 4000 watt wall mounted heater shuts off and needs reset

Sounds like a bad temperature control switch. If it looks like it can be replaced, check with Johnstone or Grainger Supply company to match it up. Google it for their websites.

Posted on Dec 07, 2007

  • 18 Answers

SOURCE: black stuff on walls

your walls are trying to burn good thing you cannot turn it down it can kill you.

Posted on Jan 04, 2008

Accurate Joe
  • 61 Answers

SOURCE: add line thermostat to fahrenheat space heater

Just disconnect the other thermostat. You can leave it there just disconnet the wires

Posted on Nov 30, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a Rheem Classic Super Quiet 80 gas furnace (for heat). The fan stops when the "heat" turns on.


Any time I ever had trouble,first thing to suspect is the thermostat.
They lose contact sometimes and sometimes you tap the face and they work til next glitch.
If the thermostat has some years on it,go ahead and replace it.
Can't you just leave the heat and fan in auto? That would be best,I think. don-ohio

Jan 10, 2017 | Heating & Cooling

1 Answer

I have a older Carrier heat pump, model 38YKC060. Does anyone know how cold it will continue to work at?


Heat pumps are of little or no value at temps around 40 degrees or below. And if you use the strips it will cost a small fortune if you have relatively high electric rates as most folks do.

Jan 04, 2017 | Heating & Cooling

2 Answers

Thermostat set at 73degrees , turns on and off to frequently


Hello Jean Thomson,

There are several reasons air-conditioning could go on & off frequently.

Thermostats can be set with close degree function...

Assuming your temperature variances are of no importance
the THERMOSTAT can be adjusted to be less sensitive...

BUT BY FAR... the most common reason for rapid cycling
of the A/C are air leaks and poor insulation...

Your local UTILITY provider will likely have FREE (or very reasonable) thermal analysis - evaluation programs... wit supported contractor services to improve your INSULATION and reduce ENERGY CONSUMPTION.

Also you might need to consider that your A/C system is simply poorly engineered to keep your home at a comfortable temperature...

Again... there are SPECIALISTS who are capable of analyzing your existing structure... and recommending appropriate systems sizing to economically operate efficiently....

Nothing here for the uninformed noviciate... all highly technical.

Save money... Get a PROFESSIONAL ANALYSIS..

Hope this helps!!
Carnac the Magnificent

Jan 02, 2017 | Heating & Cooling

2 Answers

My thermostat is set on 68 degrees and it shows room temperature is 68, but the furnace still kickson, Honeywell said it has a 1 degree difference. so what's the problem then?


Yes there is a one degree tolerance, in fact my heater just kicked on and it is set to 67 and the inside temperature reads 67. It is also a Honeywell.

Dec 28, 2016 | Heating & Cooling

2 Answers

It is 9 degrees outside and my duo therm furnace is blowing cold air


I hope you have fixed it by now. Probably was the limit switch? don-ohio

Dec 18, 2016 | Heating & Cooling

1 Answer

Why does my home A/C unit result in a constant stream of water coming out of the overflow drain? I've had the same unit for 5 years, and it seems that it drains water in ever-increasing amounts. Als


Sounds like it is freezing up. Kind of hard to say since you did not say whether it is a central heat and air system. My overflow was constantly draining onto my patio from overflow. I crawled up in the attic and followed the pvc pipe where it came in from the outside and closer to the central unit in the attic I drilled a hole in the 90 degree elbow of the pvc and unclogged the pipe which was frozen from running so long. Then I covered the hole with silicone. no more leak coming from overflow

Dec 27, 2014 | Heating & Cooling

1 Answer

Electric Furnace stopped running


You have one of two problems. Either the capacitor for the motor has failed or the motor has failed. I would turn off the power to the unit and see if you can locate the capacitor and remove it. An ac supply or electrical supply house can match up the capacitor. This is relatively inexpensive. Otherwise you will need a new motor.

Nov 11, 2014 | Heating & Cooling

1 Answer

Why can't I lower my honeywell 8500 below 67 on cool?


With a two story house you have to be aware that cold air flows downwards so any cold air coming from an ac unit will flow downstairs( normally down the stairway) so unless you can close off the down stairs then the up stairs unit will be cooling downstairs as well. Ac units have a thermostat located in the air intake and it cools until the cold air has risen to that point. In effect the space above the ac unit will be hotter than the floor. Knowing how they work ,you can see that the upstairs unit will never reach the set temperature because the cold air is continually heating from the house and will never get to the top thermostat.
So your solutions are
1-- fit controls that restrict the cold air from leaving the upper floor (Doors)
2--don't run the upper ac unit unless you are living up there (waste of money
)3 place an ac in each upper room and keep the room door closed

Aug 12, 2014 | Heating & Cooling

1 Answer

Williams wall heater setting off co2 alarm


Then it may well need a service or check the alarm

Jan 01, 2014 | Williams (5009622) Ceramic Gas Wall...

2 Answers

A/c fan not working=thermostat is working(central a/c system)a/c


The fan on the outside unit is powered from it's 240 volt source. Check that the breaker for the outside unit is not tripped. Also, a contactor is inside the outer unit that starts the fan - it may be faulty.

Jul 26, 2008 | Friedrich QuietMaster Electronic SS12J30D...

Not finding what you are looking for?
Fahrenheat FUH5-4 Heater Logo

Related Topics:

77 people viewed this question

Ask a Question

Usually answered in minutes!

Top Fahrenheat Heating & Cooling Experts

paulcarew

Level 3 Expert

2191 Answers

Brad Brown

Level 3 Expert

14757 Answers

yadayada
yadayada

Level 3 Expert

68099 Answers

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

Answer questions

Manuals & User Guides

Loading...