Monessen Hearth 7000 Series operating instructions

Page 33

TROUBLESHOOTING

STANDING PILOT - MILLIVOLT

 

SYMPTOM

 

POSSIBLE CAUSE

REMEDY

1.

Spark ignitor will

A.

Wire disconnected.

Open door and check to make sure wire is connected to

 

not light pilot after

 

 

ignitor.

 

repeated triggering

 

 

 

 

of piezo.

 

 

 

 

 

B.

Defective ignitor.

Check for spark at electrode and pilot. If no spark and

 

 

 

 

electrode wire is properly connected, replace pilot assembly.

 

 

C.

No gas or low gas

Check remote/manual shut off valve from fireplace. Low

 

 

 

pressure.

pressure can be caused by bent lines, restricted lines, low

 

 

 

 

pressure line pressure. Consult with plumber or gas

 

 

 

 

supplier.

 

 

D.

No Propane/LPG in

Check Propane/LPG tank. Refill tank

 

 

 

tank

 

2. Pilot will not stay

A.

Defective Valve

If thermopile is producing more than 325 mV, replace faulty

 

lit after carefully

 

 

valve.

 

following lighting

 

 

 

 

instructions.

 

 

 

3.

Pilot burning, valve

A.

Defective switch,

Check switch and wire for proper connection. Place jumper

 

knob turned to

 

wall switch, remote

wires across terminals of switch. If burner comes on,

 

“ON”, switch is

 

control or wire

replace defective switch. If the switch is OK, repeat the

 

turned to “ON” or

 

 

same procedure on remote control. If burner comes on,

 

“RS”, but burner

 

 

replace remote control.

 

will not ignite.

 

 

Place jumper wire across wire at gas valves (terminals

 

 

 

 

 

 

 

 

marked TH and TP/TH). If burner comes on, wires are

 

 

 

 

faulty or connections are bad. Replace wire.

 

 

B.

Pilot flame too small

If pilot flame is not close enough to the thermopile, adjust

 

 

 

 

pilot flame.

 

 

C.

Defective or

Check thermopile wire connections to make sure all are

 

 

 

malfunctioning

tight and that the thermopile is fully inserted into pilot

 

 

 

thermopile

assembly.

 

 

 

 

Check thermopile with a millivolt meter. Connect leads to

 

 

 

 

TP and TP/TH terminals on the control valve. If meter

 

 

 

 

reading is below 325 mV, replace pilot assembly

 

 

D.

Defective valve

Turn valve knob to “On” and switch to “ON”. Take a

 

 

 

 

reading at the thermopile leads (TP & TP/TH) on the valve.

 

 

 

 

If the meter reads greater than 100 mV and the burner does

 

 

 

 

not light, replace defective valve

4.

Frequent pilot

A.

Pilot flame may be

Clean and adjust the pilot flame for maximum flame

 

outage problem.

 

too high or too low,

impingement on thermopile.

 

 

 

causing pilot safety to

 

 

 

 

drop out

 

 

 

 

 

 

32

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Contents Series Table of Contents Important Safety Information Important Safety InformationAlways Burn Propane Models with Doors Closed Product SPECIFICATIONS/LISTING & Code Approval Listing & Code ApprovalModel LAB Type Certification Standard Contents PRE-INSTALLATION InformationItems Required For Installations Tools Building Supplies Before You StartFireplace Dimensions PRE-INSTALLATION Information Combustible Clearances Mantel Clearance Floor Clearances Mantel ClearancesCombustible Vertical Venting Straight up No Elbow Vent InstallationVertical Venting with Two 2 45 Degree Elbow Piping InstallationsTo Locate and Install Ceiling Firestop For Vertical Termination Ceiling Firestop Location Vent TerminationOutside Air Kit Installation To Locate and install Vertical TerminationDo not use open flame to check for gas leaks GAS Line and Electrical InstallationRemote Wall Switch Standing Pilot Ignition Wiring-Millivolt ControlOptional DC Remote Systems Millivolt Control Valve ChecklistThermopile Output Check Complete Millivolt System CheckWiring Diagram for Electronic Ignition System Electronic Pilot Ignition WiringGAS Line and Electrical Installation Lava Rock Placement Rock Wool PlacementWall Finishing DefinitionsLog Placement Log Placement for fiber VDY24/18D3RDoor Rail Installation Damper Operation Hi Temperature Cut Off Disc Before Lighting the Fireplace Operating InstructionsLighting the Fireplace You may notice the followingFor Your Safety Read Before Lighting Lighting Instructions Millivolt ControlTo Turn OFF GAS to Appliance Lighting Instructions Electronic IGN Maintenance Standing-Pilot Flame OnlyBurner Flame Soot cleaning fluid may be used on refractory logs Vent SystemGlass Door Parts List / Illustrations Parts List / IllustrationVDY24/18D3R Description 4536 5142 Conversion Kit Not Shown for Millivolt-Control Only Engine ComponentsConversion Kit Not Shown for Electronic Ignition Page Electronic Ignition General Troubleshooting 41D2002 Rev 5 April Limited Lifetime Warranty Policy