Troubleshooting; Parts List - Mr. Heater Portable Buddy MH9B Operating Instructions And Owner's Manual

TROUBLESHOOTING INFORMATION:
If Spark electrode does not produce spark.
CHECK
• Spark electrode broken – replace.
• 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.
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.
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.
• Tip over switch activated from bumping
heater. Re-light
6
Mr. Heater | Portable Buddy

PARTS LIST:

SEE BACK PAGE FOR PARTS ORDERING INFORMATION
REF. # ITEM # DESCRIPTION
1 ............. 73234 ......... PIEZO IGNITER
2 ............. 73236 ......... WIRE, IGNITER
3 ............. 73237 ......... WIRE, GROUND
4 ............. 73405 ......... COVER, RH PLASTIC
5 ............. 73418 ......... KNOB, FUEL CONTROL
6 ............. 73423 ......... COVER, FRONT
7 ............. S73485 ....... COVER, REAR WITH LABEL
8 ............. 73426 ......... COVER, LH PLASTIC
9 ............. 73428 ......... (2) BASE SUPPORT TUBES
10 ........... 73449P ....... GUARD, WIRE
1 1 ............ 73452 ......... HANDLE TUBE
12 ........... 98959 ......... SCREW, BURNER MT.
13 ........... 1 1410 .......... REGULATOR
14 ........... S73484 ....... OWNER'S MANUAL
(Required when ordering parts.)
15 ........... 73416 ......... CONTROL VALVE
16 ........... 73404 ........ PILOT ASSEMBLY
17 ........... 73403 ......... TIP SWITCH
18 ........... 73413 .......... ORIFICE, BURNER
19 ........... 71 1 13 ........... O-RING, BURNER ORIFICE
20 ........... 73446 ........ COMPLETE BURNER ASSEMBLY
(Includes assembled items 21- 25)
21 ........... 73458 ......... PLENUM, BURNER
22 ........... 73429 ......... (2) CLIP, BUNER TILE
23 ........... 73433 ......... GASKET, BURNER TILE
24 ........... 73439 ......... BURNER TILE
25 ........... 73460 ......... REFLECTOR, BURNER
ACCESSORIES:
ITEM # DESCRIPTION
F273701 5 ft. PROPANE HOSE ASSEMBLY (Swivel 1"-20
Male Throwaway Cyl. Thd. X P.O.L. w/
Handwheel)
F273702 12 ft. PROPANE HOSE ASSEMBLY (Swivel 1"-20
Male Throwaway Cyl. Thd. X P.O.L. w/
Handwheel)
F273699 Fuel Filter
Operating Instructions and Owner's Manual