Procom ML200HBA User Manual

Note  :     All     troubleshooting
items  are  listed  in order  of
operation.

    WARNING:  Only    a   qualified

service  person  should  service and
repair  heater.

   CAUTION:   Never  use  a  wire,

needle,  or  similar  object   to  clean
ODS/pilot.  This  can  damage
ODS/pilot  unit.

When  ignitor  button  is  pressed  in,
there  is  no  spark  at  ODS/pilot.

When   ignitor   button   is   pressed  in,
there  is  a  spark  at  ODS/pilot  but  no
ignition.

ODS/pilot    lights   but flame   goes out
when   control   knob is released.

1.   Ignitor electrode is positioned
      wrong.
2.   Ignitor electrode is broken.
3.   Ignitor electrode is not connected
       to ignitor cable.
4.   Ignitor cable  pinched  or wet.

5.   Broken ignitor cable.
6.   Bad piezo ignitor.

1. Gas supply  is turned  off  or
    equipment  shutoff  valve is closed.
2.    Control  knob  not fully  pressed  in
       while  pressing  ignitor  button.
3.    Air  in  gas  lines  when  installed.

4.    ODS/pilot  is  clogged.

5.    Gas regulator  setting is not correct.
6.   Control  knob not in  PILOT  position.
7.   Depleted gas supply.

1.   Control knob is not fully pressed in.
2.   Control  knob  is not  pressed  in
      long enough.
3.   Equipment  shutoff  valve  is not
      fully open.
4.   Thermocouple   connection   loose
      at  control  valve.
5   P i l o t   f l a m e   i s   n o t   t o u c h i n g
    t h e r m o c o u p l e .     T h i s   a l l o w s
    thermocouple to cool, causing pilot
    flame  to  go  out. This  problem
    could  be  caused  by  one  or  both
    of  the  following:
   A)  Low gas pressure
   B)  Dirty or partially clogged ODS/pilot
6.   Thermocouple   damaged.
7.   Control valve   damaged.

1.   Replace ignitor.

2.   Replace ignitor.
3.   Reconnect ignitor cable.

4.   Free  ignitor  cable  if  pinched  by
       any       metal     or     tubing.    Keep
      ignitor   cable  dry.
5.   Replace   ignitor  cable.
6.   Replace   piezo  ignitor.

1.   Turn    on    gas    supply    of   open
      equipment  shutoff  valve.
2.  Fully   press   in   control   knob
      while  pressing  ignitor  button.
3.   Continue   holding    down    control

knob.  Repeat  igniting  operation

      until  air  is  removed.
4.   Clean   ODS/pilot   (see    Cleaning
      and  Maintenance.  Page  13)  or

replace   ODS/pilot  assembly

5.   Replace  gas regulator.
6.   Turn  control  knob  to  pilot  position.
7.   Contact local propane/LP gas

campany.

1.   Press in control knob fully.
2.   After  ODS/pilot lights, keep control
      knob  pressed  in  30  seconds.
3.    Fully  open equipment shutoff valve.

4.  Hand   tighten   until   snug,   then
      tighten 1/4  turn more.
5.   A)  Contact  local  propane/LP  gas
      company.
      B)    Clean   ODS/pilot (see  Cleaning
     and   Maintenance.  Page 13)   or
      replace  ODS/pilot  assembly.

6.   Replace   thermocouple.
7.   Replace  control  valve.