Question about Mr Heater Base Camp Big Maxx Natural Gas Garage/Workshop Heater - 50,000 BTU, Model

1 Answer

My mr heater big maxx turns off after 10 minutes of running. The only way to turn it on is to disconnect the pressure switch and once I do that it turns on but won't ignite. Once I reconnect the pressure switch it lights but then the process starts all over again. I replaced the fan motor and fan assembly and it started shortly after that. Any ideas?

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Mr Heater Ba... Master
  • 5,673 Answers

Check gas pressure if too low will overheat or fan not running fast enough

Posted on May 11, 2016

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,
a 6ya expert can help you resolve that 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.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

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

Mr. heater big maxx keeps blowing fuses, Replaced everything in it and still does it. sometimes it will run for a while


Maybe its the wire or the outlet. Does the wire get hot? Try a different outlet that is on a larger amp breaker.

Dec 07, 2016 | Mr. Heater Heating & Cooling

1 Answer

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?


Your pressure switch may not be activating (ie closing and making contacts) This means you could have a blocked flue, clogged pressure switch tube or a bad pressure switch. The pressure switch is a safety feature to ensure your exhaust is not blocked and operating correctly. Find owners manual. Look at trouble shooting section. Open cabinet and look for error code light. If blinking 3 times, try "jumping" the pressure switch. To jump pressure switch you need to clear code be turning off power. When the unit/thermostat calls for heat the power vent fan starts first, this is when you need to jump the pressure switch. You need to do this in sequence. That is the unit first starts the power vent exhaust thus activating the pressure switch allowing the ignition cycle to the burners and heat. So the power vent fan needs to start first BEFORE you put the jumper on to bypass the pressure switch. Once the jumper is on it will call for ignition after approx 30 seconds. If ignites your problem is one of the 3 stated at the opening of this paragraph

Mar 21, 2013 | Mr. Heater Natural Gas Garage Heater -...

1 Answer

I have a Big Maxx heater that about 4 months old,and it started to act up, when I checked the circuit board I have three flashes. I removed and checked the pressure switch and that checks out fine, I get...


You may very well be right because if the induced draft motor won't come on then the heatin cycle stops there. It makes me wonder about the board because of it doing the same thing even if it's not calling for heat. Thanks.

May 13, 2011 | Mr. Heater Natural Gas Garage Heater -...

1 Answer

I have a mr. heater big maxx. It is a 75000 btu natural gas. The preasure switch failed closed/open. How do I reset it? Or do I have to replace it?


the vent pressure switch will have a rubber type hose off it to the combustion fan housing. pull the hose off and poke the conector with a paper cilp or wire to make sure it is not plugged at the housing. make sure the vent fan is running and jumper the switch if it comes on replace the switch if not look else where for your problem.a volt meter is a great tool . voltage across a switch means it is open and no voltage means its colsed. i should say to also check your venting as it maybe blocked. there is no reset

Feb 01, 2011 | Mr. Heater Natural Gas Garage Heater -...

1 Answer

How big of a breaker do i need to install for a 45000ng mr heater big maxx?


It looks like a 15 amp breaker would be fine, here is the spec sheet
http://shopfnc.com/pdffiles/mhu45spec.pdf

As you can see the unit only pulls 3 amps.

Hope this helps

Nov 14, 2010 | Mr. Heater Natural Gas Garage Heater -...

1 Answer

Mr. Heater Big Maxx 75,000 BTU Heater will not ignite. Manufacturer says it's possibly a faulty chipboard. After replacing the chipboard with a new unit shipped from the manufacturer the unit still will...


Is the circuit board giving you a blinking error code?
On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

Feb 26, 2010 | Mr. Heater Natural Gas Garage Heater -...

1 Answer

Heater Burner ignites but main blower motor will not turn on.


it sound like the blower motor may be seizing up. try spining the blade by hand to see if it feels free or not. the motor could be trying to turn but can then tripping itself out on overload. (most motors have built in safety overloads which will trip during an overcurrant event. aka too many amps.) you may have to replace blower motor

Mar 16, 2009 | Mr. Heater Natural Gas Garage Heater -...

Not finding what you are looking for?
Mr Heater Base Camp Big Maxx Natural Gas Garage/Workshop Heater - 50,000 BTU, Model Logo

Related Topics:

110 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mr Heater Base Camp Pool & Spa Experts

Jay Finke
Jay Finke

Level 3 Expert

1343 Answers

Bill Jordan

Level 2 Expert

372 Answers

David Spradling
David Spradling

Level 3 Expert

5673 Answers

Are you a Mr Heater Base Camp Pool and Spa Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...