Enerco MH42T Trouble Shooting MR. Heater Appliance, Problem Possible Cause Solution

7.SHUTDOWN AND STORAGE INSTRUCTIONS

A.The bulk propane tank “on-off” valve should ALWAYS be completely turned “OFF” when the heater is not in use.

B.When shutting off the heater, turn the regulator knob on the heater to “OFF” (clockwise). (See Figure 4)

C.CAUTION: After turning unit off, heater will remain extremely hot. Allow at least 15 minutes for cooling before handling and storing. Detach heater from bulk tank before handling and storage. REMEMBER – POL fitting is a left-hand thread.

D.HEATER STORAGE: Always remove the propane cylinder from the heater when not in use. Always store propane cylinders in a cool, well ventilated place away from any flame or heat and in a location not used for habitation. DO NOT STORE PROPANE TANK WITHIN 60 FT. OF OPEN FLAME OR HEAT.

E.See Figure 6 for spare parts list.

TROUBLE SHOOTING

MR. HEATER APPLIANCE

The chart assumes that the proper gas and gas pressure is available to the heater. The chart also assumes that the heater is used in accordance with Mr. Heater installation and operating instructions.

PROBLEM	POSSIBLE CAUSE	SOLUTION
Burners will not light	Propane tank turned off	Open tank valve
	Propane tank empty	Get tank filled
	Heater regulator not turned on	Turn valve to medium position
	Safety Shutoff plunger not depressed	Depress S/S valve while lighting
	Air in manifold or hose or propane tank	Purge air from unit
Hear gas but burners will	Air in propane tank	Return tank to dealer to purge air
not light (hissing)	Defective regulator	Replace
	Partially plugged orifice	Clean or replace
Burner lights, turns red but	Thermocouple not secure	Secure thermocouple
will not stay lit	Thermocouple out of position	Position tip 3/16” to 3/8” from screen
	Defective thermocouple	Replace thermocouple
	Safety shutoff defective	Replace safety shutoff
Blue flame at top of	Out of storage	Clean all openings with H.P. air
heater screen	Defective regulator	Replace regulator
Blue flame only – never gets red	Something in Venturi	Clean venturi tube with wire
	Orifice partially plugged	H.P. air clean out venturi/orifices
	Screen plugged up
Connection at propane tank	“O-Ring” on POL missing or defective	Replace “O” ring or POL
leaking gas after securing	Valve seat on cylinder worn	Return to dealer
Heater emits high pitched sound	Heater warming up	No Danger – heater warming up.
		Sound will stop in 1-3 minutes

If satisfactory results cannot be obtained after performing any of the above procedures,

Please call Mr. Heater’s Customer Care Center at 1-800-251-0001. Thank you.

Mr. Heater Gas-Fired Infra-Red Portable Heater 7 Operating Instructions and Owner’s Manual