26 trouble shooting guide, Symptom problem test solution – Continental BCDV48N User Manual

Page 26

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W415-0327 / B / 12.07.07

26

TROUBLE SHOOTING GUIDE

Pilot will not light.

- check if pilot can be lit by a match
- check that the wire is connected to the push button igniter.
- check if the push button igniter needs tightening.
- replace the wire if the wire insulation is broken or frayed.
- replace the electrode if the ceramic insulator is cracked or broken.
- replace the push button igniter.

No spark at pilot burner

- fi ll the tank.

Out of propane gas

Spark gap is incorrect

- spark gap should be 0.150" to 0.175" (5/32" to 11/64" approx.) from the electrode
tip and the pilot burner. To ensure proper electrode location, tighten securing nut
(fi nger tight plus 1/4 turn).

No gas at the pilot burner

- check that the manual valve is turned on.
- check the pilot orifi ce for blockage.
- replace the valve.
- call the gas distributor.

B

EFORE

ATTEMPTING

TO

TROUBLESHOOT

,

PURGE

YOUR

UNIT

AND

INITIALLY

LIGHT

THE

PILOT

AND

THE

MAIN

BURNER

WITH

THE

GLASS

DOOR

REMOVED

.

Main burner goes out;
pilot stays on.

Pilot fl ame is not large enough or
not engulfi ng the thermopile

- turn up pilot fl ame.

- replace pilot assembly.

Thermopile shorting

- clean thermopile connection to the valve. Reconnect.

- replace thermopile / valve.

Remote wall switch wire is too
long; too much resistance in the
system.

- shorten wire to correct length or wire gauge.

Faulty thermostat or switch.

- replace.

5" fl exible vent has become dis-
connected from fi replace.

Pilot goes out when the
gas knob is released.

The gas valve has
an interlock device
which will not allow
the pilot burner to be
lit until the thermo-
couple has cooled.
Allow approximately
60 seconds for the
t h e r m o c o u p l e t o
cool.

System is not correctly purged.

- purge the gas line with the glass door removed.

Out of propane gas.

- fi ll the tank.

Pilot fl ame is not large enough

- turn up the pilot fl ame.

- gently twist the pilot head to improve the fl ame pattern around the thermo-
couple.

Pilot fl ame is not engulfi ng the
thermocouple.

Thermocouple shorting / faulty.

- loosen and tighten thermocouple.
- clean thermocouple and valve connection.
- replace thermocouple.
- replace valve.

Faulty valve.

- replace.

Pilot burning; no gas
to main burner; gas
knob is on 'HI'; wall
switch / thermostat
is on.

Themostat or switch is defec-
tive.

- connect a jumper wire across the wall switch terminals; if main burner lights,
replace switch / thermostat.

Main burner orifi ce is plugged.

- remove stoppage in orifi ce.

Faulty valve.

- replace.

Wall switch wiring is defective.

- disconnect the switch wires & connect a jumper wire across terminals 1 & 3; if
the main burner lights, check the wires for defects and / or replace wires.

Main burner goes out;
pilot goes out.

Refer to "MAIN BURNER GOES OUT; PILOT STAYS ON"

Vent is blocked

Vent is re-circulating

- check for vent blockage.

- check joint seals and installation.

- reattach to fi replace.

SYMPTOM

PROBLEM

TEST SOLUTION

Pilot goes out while
standing; Main burner
is in 'OFF' position.

Gas piping is undersized.

- turn on all gas appliances and see if pilot fl ame fl utters, diminishes or extin-
guishes, especially when main burner ignites. Monitor appliance supply working
pressure.

- check if supply piping size is to code. Correct all undersized piping.

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