Maintenance; General; Cleaning; Troubleshooting - Montigo BF52-ST Installation, Operation & Maintenance Manual

BF-Series-ST Gas Fireplace
WARNING!
Do not attempt to clean glass when hot.
Do not clean glass with abrasive materials as any glass etching
may cause premature glass failure.
Do not operate this fireplace without the glass door, or with a
broken glass door.

General

 Have the fireplace installation inspected yearly, including a visual
check of the vent system, the burner and the pilot flame. For your
convenience a 1/8" manifold pressure tap is supplied on the gas
valve for a test gauge connection. See Figure 17.
For Natural Gas this appliance requires a minimum inlet pressure

of 5.5" W.C. and a manifold pressure of 3.5" W.C.
For Propane Gas this appliance requires a minimum inlet pres-

sure of 11" W.C. and a manifold pressure of 10" W.C.
 Always keep the fireplace area clear and free of combustible
materials, as well as gasoline and other flammable vapours and
liquids.
Do not use this appliance if any part has been under water. Imme-

diately call a qualified service technician to inspect the appliance
and to replace any part of the control system and any gas control
which has been under water.

Cleaning

When the fireplace is first activated, there may be some smoking and
a visible film may be left on the glass. This is a normal condition, and
is the result of burning of protective coatings on new metal.
Glass must be cleaned periodically to remove any film (which

is a normal biproduct of combustion) which may be visible. Film
can easily be removed by removing the door, as shown on page
8. Handle the door carefully, and clean it with non-abrasive glass
cleaners. One of the most effective products is Kel Kem.
Silicone seals on inner door during initial firing will "off gas", leav-

ing a visual deposit of a white substance on combustion cham-
ber walls. This can easily be removed using normal household
products.
Use a vacuum cleaner or whisk broom to keep the control com-

partment, burner, and firebox free from dust and lint.
 Logs may be cleaned periodically with a vacuum to remove soot
or other contaminates.
If your fireplace still does not operate correctly, consult your dealer or
the manufacturer.
All service and repairs should be performed by a qualified
agency.
All spare parts, optional fans, and optional trim finishes are available
from your local dealer or the manufacturer.
Page 18

Maintenance

L42DF-ST
Figure 16. Honeywell SV9501 gas valve.
NOTE:
START
- Turn Gas Supply Off
- Set thermostat to
call for heat
SV9500 / SV9600
is powered
(24VAC nominal)
Igniter warms up and
glows red.
Pilot Valve opens.
Turn gas on.
Pilot Burner Lights?
Main Valve opens?
SYSTEM OK
Gas Control Valve
Bk
W
Connector
GasC ontrol
Control (SV9501M)
Honeywell Gas
Pilot Assembly
Honeywell (Q3450)

Troubleshooting

HONEYWELL SV9500 /9600
Troublshooting Sequence
Before Troubleshooting, Familiarize Yourself With
The Startup And Checkout Procedure.
CHECK:
- Line voltage power
- Low voltage transformer
- Limit Controller
- Thermostat
NO
- Wiring
- Air proving switch on
combustion air blower system
-Vent damper (if used) is open
and end switch made
YES
Unplug Pilot Burner Cable,
Measure Voltage at
SV9500/SV9600 HSI
Terminals (24VAC
NO
Nominal, see INSET)
YES
Replace Igniter /
Flame Rod Assembly
NO
Replace SV9500/SV9600
YES
NO
Measure Volume to
SV9500 / SV9600 Voltage
must be at least 19.5 VAC
YES
YES
Replace Igniter /
Flame Rod Assembly
NO
Replace Igniter / Flame
Rod Assembly and retain.
Restart troubleshooting
Sequence. Does main
YES
valve open?
YES
Discard old Igniter /
Flame Rod Assembly
f i r e f e a t u r e
R
Harness Connector
Pilot Electrical
INSET
HSI
Terminals
NO
Replace
SV9500/
SV9600
NO
Check
Transformer
Line Volt
Supply
Replace
NO
SV9500 /
SV9600.
Save old
Igniter/ Flame
Rod Assembly
for service.
Part No. XG0711 - 022410