Questions & Answers for: big maxx heater

Mr. Heater 75000 but big maxx, it calls for heat but the igniter doesn't click. gas is there but the igniter won't make the clicking noise. You have a bad ignition mudule.

...as the gas valve,manifold and circuit board. Where can I get them at a reasonable price or even used. It's a Mr. heater big maxx 45,000 BTU. Model number mhu45ng try national energy they are on ...

...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 ...

...big maxx 45000 btu hi ,jjust bought this heater mr heater big maxx 45000btu now, the led indicator works fine, calls for heat then the ignitor tries to ignite but no gas after the gas valve.... ...

Big Maxx heater. It is only three years old, and we have had to replace the switch six times. Sometimes it works for two months, and sometimes for only t wo weeks. We have had service technicians look

...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 ...

...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 ...

...Big Maxx not calling for heat, but no error codes. My old control board in my Mr. Heater Big Maxx (MHU45NG) had a problem, and one of the connectors and terminals fried. I just put that control board ...

...Big Maxx - Green light is off. I put in a new 3 amp fuse (even thought the original looked ok) and light is still off. Checked wires at connection and have good volts. Basically new unit. With ...

...> ... > Heating and A/C Mr Heater supports converting the Big Maxx 50 and 80 from NG to LP and sells a kit with the orifices for $25. https://www.mrheater.com/big-maxx-fuel- ...