Monessen Hearth BTU/Hr Benutzerhandbuch

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1.  Replace pilot
2.  Replace pilot  
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 or open equipment 

shutoff valve

2.  Turn control knob to PILOT position
3.  Press in control knob while in PILOT 

position.

4. Continue holding down control knob. Repeat 

igniting operation until air is removed

5.  Contact local gas company
6.  Clean ODS/pilot (see “Cleaning and 

 page 26) or replace ODS/ 

pilot assembly

7.  Replace gas regulator

1.  Press in control knob fully
2.  After ODS/pilot lights, keep control knob 

pressed in 30 seconds

3.  Wait one minute for safety interlock 

system to reset. Repeat ignition operation

4.  Fully open equipment shutoff valve
5.  Hand tighten until snug, then tighten 1/4 

turn more

6.  A) Contact local gas company
   B) Clean ODS/pilot (see “Cleaning and 

 page 26) or replace ODS/ 

pilot assembly

7.  Replace thermocouple
8.  Replace control valve

1.  Ignitor electrode positioned wrong
2.  Ignitor electrode broken
3.  Ignitor electrode not connected to ignit-

or cable

4.  Ignitor cable pinched or wet

5.  Broken ignitor cable
6.  Bad piezo ignitor

1.  Gas supply turned off or equipment shutoff 

valve closed

2.  Control knob not in PILOT position
3.  Control knob not pressed in while in 

PILOT position

4.  Air in gas lines when installed

5.  Depleted gas supply
6.  ODS/pilot is clogged

7.  Gas regulator setting is not correct

1.  Control knob not fully pressed in
2.  Control knob not pressed in long enough

3.  Safety interlock system has been triggered

4.  Equipment shutoff valve not fully open
5.  Thermocouple  connection  loose  at  control 

valve

6.  Pilot flame not touching thermocouple, which 

allows 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
7.  Thermocouple damaged
8.  Control valve damaged

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

When ignitor button 
is pressed, there is 
spark at ODS/pilot but 
not ignition

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