Sulphur from fuel is being - clean the glass with a gas fireplace glass cleaner. DO NOT CLEAN deposited on glass, logs or GLASS WHEN HOT.
combustion chamber sur- If deposits are not cleaned off regularly, the glass may become
faces.permanently marked.

25

TROUBLE SHOOTING GUIDE

BEFORE ATTEMPTING TO TROUBLESHOOT, PURGE YOUR UNIT AND INITIALLY LIGHT THE PILOT AND THE MAIN BURNER WITH THE GLASS DOOR OPEN.

SYMPTOM

PROBLEM

 

TEST SOLUTION

 

 

 

 

 

 

 

 

Main burner flame

Blockage in vent.

-

remove blockage. In really cold conditions, ice buildup may occur

is

a blue,

lazy,

 

on the terminal and should be removed as required.

transparent flame.

 

 

 

Incorrect installation.

-

refer to Figure 13 to ensure correct location of storm collars.

 

 

 

 

Flames are con-

Unit is over-fired or under-

-

check pressure readings:

sistently too large

fired.

Inlet pressure can be checked by turning screw (A) counter-clock-

or

too

small.

 

wise 2 or 3 turns and then placing pressure gauge tubing over the

Carboning occurs.

 

test point. Gauge should read 7" (minimum 4.5") water column for

 

 

 

 

natural gas or 13" (11" minimum) water column for propane. Check

 

 

 

 

that main burner is operating on "HI".

 

 

 

 

Outlet pressure can be checked the same as above using screw

 

 

 

 

(B). Gauge should read 3.5" water column for natural gas or 10"

 

 

 

 

water column for propane. Check that main burner is operating on

 

 

 

 

"HI".

 

 

 

 

AFTER TAKING PRESSURE READINGS, BE SURE TO TURN

 

 

 

 

SCREWS CLOCKWISE FIRMLY TO RESEAL. DO NOT

 

 

 

 

OVERTORQUE.

 

 

 

 

Leak test with a soap and water solution.

 

 

 

 

 

Carbon is

being

Air shutter has become

-

ensure air shutter opening is free of lint or other obstructions.

deposited

on

blocked

 

 

glass, logs or com-

 

 

 

Flame is impinging on the

-

check that the logs are correctly positioned.

bustion chamber

surfaces.

 

logs or combustion cham-

-

open air shutter to increase the primary air.

 

 

 

ber.

-

check the input rate: check the manifold pressure and orifice size

 

 

 

 

as specified by the rating plate values.

-check that the door gasketing is not broken or missing and that the seal is tight.

-check that both 4" and 7" vent liners are free of holes and well sealed at all joints.

-check that minimum rise per foot has been adhered to for any horizontal venting.

White / grey film forms.

Exhaust fumes

Fireplace is spilling.

- check door seal and relief flap seal.

 

 

 

smelled in room,

 

- check for chimney blockage

 

 

 

headaches.

 

 

 

- check that the paint curing process is complete

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pilot goes out when

System is not correctly

-

purge the gas line with the glass door open.

 

 

 

the gas knob is re-

purged.

 

 

 

 

 

leased.

 

 

 

 

 

 

 

 

 

 

Out of propane gas.

-

fill the tank.

 

 

 

The gas valve has

 

 

 

Pilot flame is not large

-

turn up the pilot flame.

 

 

 

an interlock device

 

 

 

which will not allow

enough

 

 

 

 

 

the pilot burner to

Pilot flame is not engulfing

-

gently twist the pilot head to improve the flame pattern around the

be lit until the ther-

the thermocouple.

thermocouple.

 

 

 

mocouple

has

Thermocouple shorting /

-

loosen and tighten thermocouple.

 

 

 

cooled. Allow ap-

faulty.

-

clean thermocouple and valve connection.

 

 

 

proximately

60

 

 

-

replace thermocouple.

 

 

 

seconds for the

 

 

 

 

thermocouple to

 

 

-

replace valve.

 

 

 

cool.

 

 

Faulty valve.

-

replace.

W415-0434 / C / 03.24.05

Page 24 Page 26
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Napoleon Fireplaces GD70PT-S, GD70NT-S manual Trouble Shooting Guide, Symptom Problem Test Solution
Page 24 Page 26

GD70PT-S, GD70NT-S specifications

The Napoleon Fireplaces GD70NT-S and GD70PT-S are exemplary models that elevate the standard for modern gas fireplaces. Combining sophistication with advanced technology, these units are designed for homeowners seeking both aesthetic appeal and functional efficiency.

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