Question about Mr. Heater Big Buddy Heater

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Fan on my big buddy heater just stopped working changed batteries still not working?tried the switch nothing .i only have radiant heat.

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  • 81 Answers

I would first check the wiring connections to fan and get a multi meter , set on 12 volts dc and see if fan motor has 12 vdc input voltage.
Too cheap to buy a voltage tester at wal mart ot harbor frieght, you can use a 12 volt bulb and socket, if you already have one. Remove fan wires & hook up 12 volt light bulb & if it lights, you got the juice. Carefull,dont let live wires touch because you short out $26.00 big buddy fan transformer. work with fan transformer unplugged from wall and dont plug in until you sure no wires touch.
use electrical or duct tape. electrical tape better.

otherwise,just buy the multi meter, they only $8.00 to $10.00
read & understand instructions, before you try to use it. otherwise,you could burn out your new meter.

well worth owning &
learning to use multi meter. I use it thousands of times.

if fan motor has juice but wont run, check fan shaft to see if it turns freely or scrapes or is stuck. oil fan motor bearings ,change the brushes.
make sure that the fan blades are not touching the fan housing and can turn freely.
if it still dont work, buy new fan motor.
if no juice at fan motor, check mr heater switch with the power off,unplug transformer from the wall or remove batteries.,
and use the ohm meter setting of the multi- meter to test for continuity of the switch when the switch is in the on position.
power must be off when using the ohm setting of a multimeter.
if power is on & using the ohm setting of the multi meter, you will blow out the multimeter. The ohm setting uses a 1.5 volt dc battery inside the multimeter to test for a compleated circuit.
so, 12volts dc would blow it out on ohms setting.
TESTING FOR OUTPUT OF FAN TRANSFORMER OR BATERY PACK.
If the switch is good,reinstall it on mr.heater and test the output of the transformer or battery compartment using the 20 volt dc scale of the multi meter. the voltage scale you select ,must be higher than the voltage you expect to find ,in order to avoid damage to the multi meter.
observe polarity,positive to red and negative to black.

the dc voltmeter setting is totally polarity sensitive and a reversed hook up could blow out the meter.
multi meter means it can read ac volts, dc volts,ohms and dc amps. Read and understand the included instructions before using a multi meter
a good single battery in new condition reads 1.62volts dc
1.5 vdc is almost dead, a good used battery reads 1.58 to 1.6 vdc
below 1.58 vdc is weak battery and 1.48 vdc is usually totally dead, but may be enough for momentary usage under 1 minute.

Posted on Oct 07, 2013

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: heater not turning on

check to make sure gas valve has at least 24 volts

Posted on Jan 04, 2009

shastalaker7
  • 1515 Answers

SOURCE: Fan stops and heater continues to heat....

Hi, If the main fan stops blowing air but the burners continue to stay on and not shut off, this is dangerous. It sounds as though the fan control combination limit switch is faulty or stuck. The burners should shut off before the fan. If this unit only has a high limit for safety, it should shut the burners off when it reaches a predetermined temperature to keep the unit from burning up. That's why these safetys are in place. If your furnace has the combination fan/limit control, and it is stuck or has failed, this will cause the burners to run. I would turn the main gas off until the problem is found, or kill the power. Can you give me the age of the system, and model, serial numbers and the name of the heater? This would be of help. I would be very careful if you use it if its very cold where you are, and turn it on and off as needed. Do not go to sleep with it doing this for your safety,please. Get back to me if you will.
Sincerely,
Shastalaker7

Posted on May 22, 2010

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I have a Big Maxx heater and it won't stop blowing and won't heat. The fan just keeps running! Anyone know what could be wrong?


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1 Answer

Why does my Big Buddy Mr. Heater make a whistling or humming noise?


mr heater makes a whistling sound as gas escapes around the gasket of the ceramic heating elements, that is ,all around the outside edges of the ceramic heating elements.

You can find out exactly where the gas leak is , by pressing down on the outside edges of the ceramic elements with a big, long
slotted (flat bladed) screwdriver while mr heater is running and hot.

The screwdriver needs to be long enough so that you dont burn your hands [the longer & bigger the screwdriver, the better] & it does not hurt to wear heavy gloves too, because it gets very hot, very fast in front of mr heater.
The thicker the blade of the screwdriver is, the less chance of damaging the ceramic heating element because a thick bladed screwdriver will not concentrate all the pressure in just 1 tiny point.

You are not trying to crack the ceramic with a wood chisel.

Dont press down so hard that you break the ceramic heating element, start by pressing down gently and gradually increasing pressure until you notice a change in the whistle or sparks comming out of the heating element as loose carbon deposits
come out of the heating element and burn in the propaine flame.

When you press down on one edge ,the other opposite edge may come up slightly, resulting in loose carbon deposits escaping and burning as sparks.

also, you may not be pressing at the spot where the gas whistling is comming from and will need to move the screwdriver flat blade around the edges, here & there, to test for the effect of pressing down.

When you press down on the outside edge where the diamonds stop, while mr heater is whisteling, the whisteling will stop & mr heater will run quite. Sometimes, just pushing down with the screwdriver will stop the whisteling ,for a while,and maybe a good long while.

The big pain in the **** solution is to put a new gasket around the
ceramic heating elements, but there is no guarantee that the new gasket will not whistle.
Its a big ,nasty job, which I would rather not do--so I just push down with the screwdriver, to temporarly stop the whisteling, I guess it depends on how much the whisteling annoys you, as to if you want to go thru all the effort & expense of changing out the gaskets, without knowing if it will still whistle when you are done.

Im just a diy guy that has 3 big buddys I keep going for 4 yrs now.
I took one apart to look 4 the cause of the gas whistling, and then put it back together. Funny,it stopped whisteling & that was 3 yrs ago. I didnt put in any new parts.

It may help ,a lot ,to increase the pressure with which the Mr heater ceramic is pressed down against the gasket material.


This is accomplished by a heavy stainless steel wire that runs behind the ceramic heater element and goes through sheet metal
tabs on each side of the ceramic mounting frame.
You can bend the wire and the tabs,but only a little bit, and be very careful not to break the tabs because the tabs are not repairable, to increase the downwards pressure of the ceramic element against the gasket material. This may stop the gas whisteling--
its a try & see thing, a finicky adjustment, that sometimes works
& sometimes does not and sometimes, after a week or two, the ceramic might reseat itself against the gasket material and the whistling stop. Mine did stop whistling, but not until a couple of months after i did the job, due ,i think to reseating of the cermic against the gasket material. its try & see thing.


also ,a gas tank that has higher than average gas pressure may start gas whistling up but the whistling will stop after you have burned up the higher pressure of the propaine.

Jan 06, 2013 | Mr. Heater Big Buddy Heater

1 Answer

Im on my 2nd big buddy and both of them the fan has gone out, the first on went in a week, and this one last a couple of months.


fans
1. oil the bearings,sae 30 or wd40 for places you cant get into.
dont take fan motor apart unelse you realy have to.

dont let your fan motor bearings get worn egg shaped from lack of oil.
2. make sure fan blades not hitting or scraping fan housing and fan blades are securely fastened to fan motor shaft.


3.mr heater fan motor is 12 volts DC , so it may have a segmated comutator and brushes.


I dont know because i have not yet needed to take my mr heater
fan motor apart but i have worked on hundereds of ac fan motors
in the past 65 years.
4. keep fan motors from getting wet. they hate water.
5. keep fans clean, they dont like foriegn materials.


Your specific problem: first fan 2 weeks,second fan 2 months.


how much you use them, are you wearing the brushes down?
Getting fan motor wet? foreign material getting pulled into fan or fan motor? off/on switch work ok. batterys good,battery contacts ok? fan transformer 110 vac to 12 vdc good? fan bearings oiled?
need more info to diagnose properly.
all of the above needs to be checked out to tell whats happened.
fan & fan motor needs to be inspected.

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1 Answer

My electric baseboard heaters make a pinging sound which drives me nuts when I am trying to sleep! Any suggestions other than changing the unit? Thanks


Electric baseboard heaters heat by radiant heat. This mean the heater is heating the metal of the heater first which causes expansion of the metal. This will cause popping metal sounds becouse it is heating up. When it kicks off, by the thermostat, it starts to cool which causes contraction of metal. This will also cause noise. Most all base board heaters I have installed and worked on does this. Sorry there is little to nothing you can do. :)

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This is probably a subjective answer-- but I will give you my opinion-- OK?-- and the reasons for why I say so--

First off: You get: 3,413 btu in a KW HR from electricity-- either way!

So-- Do you prefer to feel the radiant heat from radiant heat-- or from the ceramic heater?

Do you like the looks of the ceramic, versus the radiant?-- do you prefer the portability and the safety features of one over the other?

And what about cost?-- is there a big difference?

I would let features and safety help me in the decision making process--
But either way--
you only get 3,413 btu's of heat from every Kilowatt of electricity you buy--


And if you are trying to heat a house with that-- it can get mighty expensive! :-)

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Turn on the fan with heat, even though the heat doesn't work. Then, leaving the remote on, turn off the fan at the wall switch (or circuit breaker box). Wait a few minutes. Then turn on the power and within 30 seconds, press the reset button. You should be able to see a countdown from 5 to 0 on the remote screen.

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