Desa CGP10TLA, CGP10TA installation manual Troubleshooting, Observed Problem Possible Cause Remedy

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VENT-FREE PROPANE/LP GAS HEATER

TROUBLESHOOTING

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

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

WARNING: Turn off heater and let cool before servicing. Only a qualified service per- son 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

1.

Ignitor cable pinched or wet

1.

Free ignitor cable if pinched by any

spark at ODS/pilot

 

 

 

metal or tubing. Keep ignitor cable dry

 

2.

Ignitor electrode not connected to igni-

2.

Reconnect ignitor cable

 

 

tor cable

 

 

 

3.

Piezo ignitor nut is loose

3.

Tighten nut holding piezo ignitor to

 

 

 

 

heater cabinet. Nut is located inside

 

 

 

 

heater cabinet at top

 

4.

Broken ignitor cable

4.

Replace ignitor cable

 

5.

Ignitor electrode broken

5.

Replace ignitor

 

6.

Bad piezo ignitor

6.

Replace piezo ignitor

 

7.

Ignitor electrode positioned wrong

7.

Replace ignitor

 

 

 

 

 

When ignitor button is pressed, there is

1.

Gas supply turned off or equipment

1.

Turn on gas supply or open equipment

spark at ODS/pilot but no ignition

 

shutoff valve closed

 

shutoff valve

 

2.

Control knob not in PILOT position

2.

Turn control knob to PILOT position

 

3.

Control knob not pressed in while in

3.

Press in control knob while in PILOT

 

 

PILOT position

 

position

 

4.

Air in gas lines when installed

4.

Continue holding down control knob

 

 

 

 

Repeat igniting operation until air is re-

 

 

 

 

moved

 

5.

ODS/pilot is clogged

5.

Clean ODS/pilot (see Cleaning and

 

 

 

 

Maintenance, page 13) or replace ODS/

 

 

 

 

pilot assembly

 

6.

Gas regulator setting is not correct

6.

Replace gas regulator

 

 

 

 

 

ODS/pilot lights but flame goes out when

1.

Control knob not fully pressed in

1.

Press in control knob fully

control knob is released

2.

Control knob not pressed in long enough

2.

After ODS/pilot lights, keep control

 

 

 

 

knob pressed in 30 seconds

 

3.

Safety interlock system has been triggered

3.

Wait one minute for safety interlock sys-

 

 

 

 

tem to reset. Repeat ignition operation.

 

4.

Equipment shutoff valve not fully open

4.

Fully open equipment shutoff valve

 

5.

Thermocouple connection loose at con-

5.

Hand tighten until snug, then tighten 1/4

 

 

trol valve

 

turn more

 

6.

Pilot flame not touching thermocouple,

6.

A) Contact local propane/LP gas company

 

 

which allows thermocouple to cool,

 

 

 

 

causing pilot flame to go out. This prob-

 

 

 

 

lem could be caused by one or both of

 

B) Clean ODS/pilot (see Cleaning and

 

 

the following:

 

Maintenance, page 13) or replace ODS/

 

 

A) Low gas pressure

 

pilot assembly

 

 

B) Dirty or partially clogged ODS/pilot

 

 

 

7.

Thermocouple damaged

 

 

 

8.

Control valve damaged

7.

Replace thermocouple

 

 

 

8.

Replace control valve

www.desatech.com

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Contents CGP10TA CGP10TLA What to do if YOU Smell GASSafety Information VENT-FREE PROPANE/LP GAS HeaterLocal Codes Product FeaturesProduct Identification UnpackingUnusually Tight Construction AIR for Combustion and VentilationProviding Adequate Ventilation Confined and Unconfined SpacesDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation Placing Heater On Mounting Screws Installing Two Mounting ScrewsInstalling Bottom Mounting Screw Removing Front Panel Of HeaterConnecting to GAS Supply External Regulator With Vent Pointing DownChecking GAS Connections Pressure Testing Gas Supply Piping SystemPressure Testing Heater Gas Connections Lighting Instructions For Your Safety Read Before LightingOperating Heater Inspecting Burner Accessory Cleaning and MaintenanceService Publications Hints Technical ServiceTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Gas leak. See Warning statement at Parts not Under Warranty Replacement Parts CentralParts Under Warranty Illustrated Parts Breakdown CGP10TA CGP10TLAParts List KEY Part Number Description QTYWarranty Information

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