TROUBLESHOOTING

19

TROUBLESHOOTING

Note: For additional help, visit DESA technical service web site at www.desatech.com.

Note:All troubleshooting items are listed in order of operation.

WARNING: Turn off and un- plug heater and let cool before servicing. Only a qualified service person should service and repair heater.

CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot unit.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

When ignitor button is pressed, there is no spark

1.

Ignitor electrode not connected to ignitor

1.

Reconnect ignitor cable

at ODS/pilot

 

cable

 

 

 

 

2.

Ignitor cable pinched or wet

2.

Free ignitor cable if pinched by any metal or

 

 

 

 

tubing. Keep ignitor cable dry

 

3.

Piezo ignitor nut is loose

3.

Tighten nut holding piezo ignitor to base panel

 

 

 

 

of log set. Nut is located behind base panel.

 

 

 

4.

Replace ignitor cable

 

4.

Broken ignitor cable

5.

Replace piezo ignitor

 

5.

Bad piezo ignitor

6.

Replace pilot assembly for remote-ready

 

6.

Ignitor electrode positioned wrong or broken

 

units; Replace ignitor electrode for variable

 

 

 

 

manually controlled units

 

 

 

 

 

 

When ignitor button is pressed, there is spark at

1.

Gas supply turned off or equipment shutoff

1.

Turn on gas supply or open equipment shutoff

ODS/pilot but no ignition

 

valve closed

 

valve

 

2.

Control knob not in PILOT position

2.

Turn control knob to PILOT position

 

3.

Control knob not pressed in while in PILOT

3.

Press in control knob while in PILOT po-

 

 

position

 

sition

 

4.

Air in gas lines when installed

4.

Continue holding down control knob. Repeat

 

 

 

 

igniting operation until air is removed

 

 

 

5.

Contact local propane/LP gas company

 

5.

Depleted gas supply (propane/LP only)

 

 

 

 

6.

ODS/pilot is clogged

6.

Clean ODS/pilot (see Cleaning and Main-

 

 

 

 

tenance, page 18) or replace ODS/pilot as-

 

 

 

 

sembly

 

7.

Gas regulator setting is not correct

7.

Replace gas regulator

 

 

 

 

 

 

ODS/pilot lights but flame goes out when control

1.

Control knob not fully pressed in

1.

Press in control knob fully

knob is released

2.

Control knob not pressed in long enough

2.

After ODS/pilot lights, keep control knob

 

3.

Safety interlock system has been trig-

 

pressed in 30 seconds

 

 

gered

3.

Wait one minute for safety interlock system to

 

4.

Equipment shutoff valve not fully open

 

reset. Repeat ignition operation

 

5.

Pilot flame not touching thermocouple,

4.

Fully open equipment shutoff valve

 

 

which allows thermocouple to cool, causing

5.

A) Contact local natural or propane/LP gas

 

 

pilot flame to go out. This problem could be

 

company

 

 

caused by one or both of the following:

 

 

 

 

 

A) Low gas pressure

 

B) Clean ODS/pilot (see Cleaning and Main-

 

 

B) Dirty or partially clogged ODS/pilot

 

tenance, page 18) or replace ODS/pilot as-

 

6.

Thermocouple connection loose at control

 

sembly

 

 

valve

6.

Hand tighten until snug, then tighten

 

7.

Thermocouple damaged

 

1/4 turn more

 

8.

Control valve damaged

7.

Replace pilot assembly

 

 

 

8.

Replace control valve

For more information, visit www.desatech.com

114745-01

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Desa VFRMV18PA, VFRMV18NA, VFRMV24NA installation manual Troubleshooting, Observed Problem Possible Cause Remedy

VFRMV24NA, VFRMV18NA, VFRMV18PA specifications

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