Mr. Heater Popular Questions, Answers, Tips & Manuals

Check out the pressure switch . and the snap disk .

Question edited for a lot more clarity.Question moved from Sewing Machines category!Does it have a tip switch or a fuel float level? Smokes because there is too much fuel, or is has flamed out and is just vaporizing the fuel.https://www.google.com/search?q=175%2C000+buddy+pro..

Tis atomizing the fuel so it'll burn hotter/better. up their loud tis normal.

Model?

With multimeter check l1 to ground on control board. Also check 24vac to ground to verify high and low voltage present at board.

Yes no flame to thermocouple it will shut off

chw=eck flame sinser need clean

check the pressure switch and the snap disks

may be low fuel flow video below have some suggestions. https://www.youtube.com/watch?v=L5UNAvPWXNE https://www.youtube.com/watch?v=JU8dS8XNU7k https://www.youtube.com/watch?v=VLbA_DFlqoQ https://www.youtube.com/watch?v=s58YeeyD0zE https://www.youtube.com/watch?v=kdnOhjev3BU manual below troubleshooting starts page 13 https://www.mrheater.com/downloads/dl/file/id/275/mr_heater_20_30k_btu_propane_vent_free_manual_2016.pdf

There is nothing on line about heat shields I would go direct to M r heater with model and serial number and ask them .

Chances are the thermocouple needs replacing.

This is a butane unit, if I'm correct. With this, it has a temperature sensor and if this sensor is dirty, it may cut off because it doesn't sense the flame. You can take a small piece of Emery cloth and try to clean it. If this doesnt work, the sensor may need replacement.

Check flame sensor and pressure switch

The thermocouple is probably bad. It senses the heat from the flame and opens the valve to keep the pilot lit. https://inspectapedia.com/heat/Thermocouple_Replacement.php

something that you are missing as gas is deadly and expolsive call in a gas technician to properly install the unit

How about the thermocouplin have you tested that?

could be overheating ,

Hello campcurti81, Mr. Heater expends about 50% of it's instruction MANUAL stating & re-repeating the MH24T (your) HEATER is not suited for heating enclosed spaces... And yet... Here you are reporting that it is our sole reason for being here is because it is your "MEANS" of not staying cold in the winter weather... Other than being in need of constant supervision & quite hazardous... these heaters are fairly simple: The screens need to be replaced when the infrared element fails (on AMAZON... $19.48) Amazon com Mr Heater Grid Screen Kit for Tank Top Heaters Home Kitchen Also cheaper at eREPLACEMENT ($14.36 ++ tax/ship'n) Mr Heater HVAC Parts Great Selection Great Prices eReplacementParts com And (do not over-tighten) those THERMOCOUPLES if the flame won't stay on after the ignition count (eBay $6.99 + tax... FREE shipping) Mr Heater Thermocouple for MH12 MH12C MH12T MH12CS MH12TS MH24T MH24TS... Hope this helps (be safe: read + heed those warnings) Carnac the Magnificent

Change the thermocouple . check thermocouple connections are tight .

Yellow flame indicates insufficient air is being injected into the mixing chamber - air hole blocked or restricted maybe. Yellow flames indicate a general lack of oxygen and also a yellow flame is dangerous as it is producing high levels of carbon monoxide.