Burner does not Light, Burner does not Stay LIT

BURNER DOES NOT LIGHT

	Possible Cause	Try This….
	Air in the gas line.	Purge gas lines.

	Improper gas inlet pressure.	Check gas inlet pressure at the 1/8” NPT plugged tap. Gas inlet
	Improper gas inlet pressure.	pressure should be as follows:
		pressure should be as follows:
		Natural Gas: 5.0”w.c. min.; 10.5” max.
		LP Gas: 11”w.c. min.; 13.0” max.
		If gas inlet pressure does not meet inlet pressure requirements
		contact the gas company.

	Gas valve does not open.	Check for 24V across valve terminals.
		Check Shutoff On Valve.
		IF NO: Check wiring between the ignition module and the valve.
		Repair/replace wires as required. If wiring is OK, replace ignition
		module. IF YES: Replace gas valve.

	Low gas outlet pressure.	Check gas manifold pressure. Measure manifold pressure at the

		pressure tap on the gas valve.
		Check gas manifold pressure. Measure manifold pressure at the
		pressure tap on the gas valve. Natural Gas: 4.0” w.c. LP Gas: 10.0”
		w.c. If manifold pressure does not meet requirements, adjust valve
		outlet pressure with the adjustment screw on the valve. NOTE:
		Proper inlet gas pressure must be verified before performing outlet
		pressure testing.

BURNER DOES NOT STAY LIT

Possible Cause	Try this…..
Damaged wires between DSI module and electrode.	Replace wires as required.

Faulty DSI module	Replace DSI module.

Damaged Electrode	Replace Electrode

Mr. Heater Gas-Fired Low-Intensity Infrared Heater

Operating Instructions and Owner’s Manual

MHT 45 specifications

The Mr. Heater MHT 45 is a versatile and powerful heating solution designed for both residential and commercial spaces. This portable propane heater stands out in the market due to its efficient heating capabilities and user-friendly features, making it ideal for workshops, garages, and outdoor activities.

One of the standout features of the MHT 45 is its robust heating output. It can deliver an impressive 45,000 BTUs, ensuring that even larger spaces are heated quickly and effectively. This high output is particularly beneficial during colder months, where rapid warmth is essential for comfort and productivity. The heater offers a heating range of up to 1,000 square feet, making it suitable for various applications, whether in the home or on the job site.

The MHT 45 utilizes advanced radiant heating technology, providing even warmth without requiring a fan. This technology allows for silent operation, making it an excellent option for noise-sensitive environments. Additionally, the radiant heat minimizes air movement and helps maintain humidity levels, creating a comfortable atmosphere while reducing dust and allergens in the air.

Another noteworthy characteristic is its portability. The MHT 45 comes equipped with a sturdy handle, allowing for easy transport between locations. This makes it a favorite among tradespeople who need efficient heat in different work areas or outdoor enthusiasts who want comfort while camping or tailgating.

Safety features are abundant in the Mr. Heater MHT 45. It includes an automatic shut-off system, which activates if the heater tips over, ensuring user safety. The built-in oxygen depletion sensor automatically turns the heater off if it detects low oxygen levels in the surrounding environment, providing peace of mind while operating.

The heater runs on a 20-pound propane tank, providing a substantial amount of heating time before needing a refill. This efficiency means users can rely on the MHT 45 for extended periods without frequent interruptions.

In summary, the Mr. Heater MHT 45 is a powerful propane heater packed with features that cater to both indoor and outdoor heating needs. With its high BTU output, silent operation, portability, and extensive safety measures, it represents a reliable choice for anyone looking to stay warm in various settings. Whether for personal use or demanding job sites, the MHT 45 is engineered to deliver comfort and convenience.