III. Main burner will not light

 

A. Valve / Switches

 

 

 

 

 

 

 

1.

Valve control off

1.

Turn to “ON” position

 

 

 

 

2.

Blockage at the burner (line,

2.

Check and clean

 

 

 

 

 

orifice, or ports)

 

 

 

 

 

 

 

3.

Defective wall switch or

3.

Conduct a continuity test or jumper wire

 

 

 

 

 

thermostat

 

test and replace if defective

 

 

 

 

4.

Defective wiring or connections

4.

Conduct a test with a jumper wire and

 

 

 

 

 

 

 

repair as required

 

 

 

 

5.

Excessive length of thermostat

5.

Reduce wire length to less than 100 feet or

 

 

 

 

 

wire from valve to wall switch or

 

increase wire size

 

 

 

 

 

thermostat

 

 

 

 

 

 

 

6.

Wall switch or thermostat

6.

Wire correctly

 

 

 

 

 

incorrectly wired

 

 

 

 

 

 

 

7.

Defective Valve

7.

Turn valve and “ON/OFF” switch to the

 

 

 

 

 

 

 

“ON” position. Check with millivolt meter

 

 

 

 

 

 

 

at terminals TP-TH & TH. Millivolt meter

 

 

 

 

 

 

 

should read greater then 460 millivolts. If

 

 

 

 

 

 

 

the reading is OK and the burner does not

 

 

 

 

 

 

 

come on, replace the gas valve

 

 

 

 

8.

Thermopile may not be

8.

Recheck using the millivolt meter. The

 

 

 

 

 

generating sufficient voltage

 

pilot flame may not be high enough for the

 

 

 

 

 

(460 mV)

 

flame to properly engulf the thermopile. If

 

 

 

 

 

 

 

so, adjust and reset. If voltage is still

 

 

 

 

 

 

 

insufficient, replace thermopile

 

 

 

 

9.

Wall switch, thermostat, or wires

9.

Follow previous corrective action, check

 

 

 

 

 

are defective

 

switch and wiring. Replace where

 

 

 

 

 

 

 

defective

 

 

 

 

 

 

 

 

 

 

IV. Soot deposits on glass

 

1. Flame impingement on logs

1.

Adjust the log set to avoid direct flame

 

 

 

 

 

 

 

impingement. Follow log placement

 

 

 

 

 

 

 

instructions

 

 

 

 

2.

Improper primary air setting

2.

Open aeration shutter more.

 

 

 

 

3.

Foreign material impeding

3.

Ensure that no foreign material blocks

 

 

 

 

 

burner

 

burner flame ports

 

 

 

 

4.

Air inlet blocked or restricted

4.

Clean air inlets

 

 

 

 

5.

Vent system is restricted or

5.

Check correct termination is used.

 

 

 

 

 

inadequate

 

 

 

 

 

 

 

 

 

 

 

 

V. Flame burns blue and lifts

 

1. Insufficient combustion air being

1.Ensure that no foreign material blocks air

 

 

off burner

 

 

supplied

 

inlets and that the burner shutter is

 

 

 

 

2.

Manifold pressure set too high

 

correctly adjusted. Ensure the vent is

 

 

 

 

 

 

 

adequate

 

 

 

 

3.

Vent system restricted

2.

Check manifold pressure

 

 

 

 

 

 

3.

Check vent system

 

 

VI. Flames impinge on firebox

 

1. Vent system is restricted or

1.

Correct flue as required

 

 

top

 

 

inadequate

 

 

 

 

 

 

 

2.

Manifold pressure too high

2.

Check manifold pressure as required

 

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Drolet GTX-I manual Valve / Switches