Mr. Heater MH12B Betriebsanleitung PDF herunterladen (Seite 7)

OperatingInstructionsandOwner’sManualMr. Heater | Portable Propane Heater

E-

vacuum or apply air pressure through the holes in the

pilot indicated by the arrows in Figure 5.

 Never use needles, wires, or similar cylin-

drical objects to clean the pilot to avoid damaging the

calibrated orifice that controls the gas flow.

9 Applyairpressure(max.30psi.)intoceramictileof

burnerassemblyandtheventuritube(ref.item#16)to

remove dust, lint or spider webs.

10 Reassemble main burner orifice holder onto the burner

assembly.

11 Reinstall burner assembly into the heater housing

12 Reinstall fuel line and check for leaks.

13 Install heater back cover.

14StoreinBuddyBag#32102(included)tohelpprevent

dust, insects and other contaminants from clogging the

pilot.



If Spark electrode does not produce spark.

CHECK

•Sparkelectrodebroken–replaceODS(OxygenDepletion

Sensor).

•Igniterwiremaynotbeattachedtosparkelectrode,

ground wire may not be attached to frame - attach.

•Igniterwiredamaged–replace.

•Piezoigniterdefective--replacecontrolvalve

If Spark electrode produces spark but pilot does not light.

CHECK

•Nogastoheater–installdisposablecylinderorconnect

hose and turn on valve at remote cylinder.

•“PILOT”positionnotproperlyaligned–turngascontrol

knobto“PILOT”positionanddepress.

•Pilotisblockedfromspiderwebordirt–cleanpilot,see

MAINTENANCE.

If Pilot flame does not stay lit when knob is released.

CHECK

•Controlknobin“PILOT”positionnotcompletely

depressed or held in long enough to purge air from lines.

•Pilotflamenotsurroundingthermocouple–cleanpilot,

see MAINTENANCE.

•PilotAssemblydefective–replace.

•Tipswitchwiresdisconnected–connect.

If Main burner does not ignite.

CHECK

•Mainburnerorificeisblocked–cleanburner,see

MAINTENANCE.

If Heater keeps shutting “OFF” during normal operation.

CHECK

•Pilotisblocked–cleanpilot,seeMAINTENANCE.

•Provideminimumfreshairopeningof9squareinches

(example3”x3”opening).

•Tipoverswitchactivatedfrombumpingheater.Re-light

•Regulatordefective-Replaceregulator.

•Internalcontamination-Replacecontrolvalveand

regulator.

•CallTechnicalServicesforadditionalinformation.

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