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104332

BLUE FLAME PROPANE/LP HEATER

TROUBLESHOOTING

 WARNING: Turn off and un-

plug heater and let cool before
servicing. Only a qualified ser-
vice 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.

POSSIBLE CAUSE

1. Ignitor electrode positioned wrong
2. Ignitor electrode broken
3. Ignitor electrode not connected to igni-

tor cable

4. Ignitor cable pinched or wet

5. Piezo ignitor nut is loose

6. Broken ignitor cable
7. Bad piezo ignitor

1. Gas supply turned off or equipment

shutoff valve closed

2. Control knob not in PILOT position
3. Control knob not pressed in while in

PILOT position

4. Air in gas lines when installed

5. Depleted gas supply
6. ODS/pilot is clogged

7. Gas regulator setting is not correct

1. Control knob not fully pressed in
2. Control knob not pressed in long enough

3. Safety interlock system has been trig-

gered (thermostat models only)

4. Equipment shutoff valve not fully open
5. Thermocouple connection loose at con-

trol valve

6. Pilot flame not touching thermocouple,

which allows thermocouple to cool,
causing pilot flame to go out. This prob-
lem could be caused by one or both of
the following:
A) Low gas pressure
B) Dirty or partially clogged ODS/pilot

7. Thermocouple damaged
8. Control valve damaged

REMEDY

1. Replace ignitor
2. Replace ignitor
3. Reconnect ignitor cable

4. Free ignitor cable if pinched by any

metal or tubing. Keep ignitor cable dry

5. Tighten nut holding piezo ignitor to

heater cabinet. Nut is located inside
heater cabinet at top

6. Replace ignitor cable
7. Replace piezo ignitor

1. Turn on gas supply or open equipment

shutoff valve

2. Turn control knob to PILOT position
3. Press in control knob while in PILOT

position

4. Continue holding down control knob.

Repeat igniting operation until air is
removed

5. Contact local propane/LP gas company
6. Clean ODS/pilot (see Cleaning and

Maintenance, page 13) or replace ODS/
pilot assembly

7. Replace gas regulator

1. Press in control knob fully
2. After ODS/pilot lights, keep control

knob pressed in 30 seconds

3. Wait one minute for safety interlock sys-

tem to reset. Repeat ignition operation

4. Fully open equipment shutoff valve
5. Hand tighten until snug, then tighten

1/4 turn more

6. A) Contact local propane/LP gas company

B) Clean ODS/pilot (see Cleaning and
Maintenance
, page 13) or replace ODS/
pilot assembly

7. Replace thermocouple
8. Replace control valve

OBSERVED PROBLEM

When ignitor button is pressed, there is no
spark at ODS/pilot

When ignitor button is pressed, there is
spark at ODS/pilot but no ignition

ODS/pilot lights but flame goes out when
control knob is released

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.

www.desatech.com

Summary of Contents for CGP20TB

Page 1: ...ence CGP20TB CGP20TLB CGP30TB CGP30TLB 20 000 Btu Hr Thermostat and 30 000 Btu Hr Thermostat Model Heaters WARNING Improper installa tion adjustment alteration ser vice or maintenance can cause injury...

Page 2: ...can be dangerous 4 This heater shall not be installed in a bedroom or bathroom 5 This heater needs fresh outside air ven tilation to run properly This heater has an Oxygen Depletion Sensing ODS safety...

Page 3: ...shipment 3 Check heater for any shipping damage If heater is damaged promptly inform dealer where you bought heater PRODUCT FEATURES SAFETY DEVICE This heater has a pilot with an Oxygen Depletion Sen...

Page 4: ...ing only iftherearedoorlesspassagewaysorventila tion grills between them PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code NFPA 54 ANS Z223 1 Sec tion5 3 AirforComb...

Page 5: ...include direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdoors 4 Compare the maximum Btu Hr the space can support with the actual amount of Btu Hr used...

Page 6: ...igure 2 Ventilation Air from Inside Building WARNING Rework work sheet adding the space of the adjoining unconfined space The combined spaces must have enough fresh air to supply all appliances in bot...

Page 7: ...N This heater cre ates warm air currents These currents move heat to wall sur faces next to heater Installing heater next to vinyl or cloth wall coverings or operating heater where impurities such as...

Page 8: ...ng bracket to wall in one of two ways 1 Attaching to wall stud 2 Attaching to wall anchor Removing Front Panel Of Heater 1 Remove two screws near bottom cor ners of front panel 2 Liftstraightupongrill...

Page 9: ...l mounting bracket is firmly fastened to wall Figure 9 Folding Anchor INSTALLATION Continued Figure 10 Popping Open Anchor Wings For Thin Walls Stand Out Tab Figure 11 Mounting Heater Onto Mounting Br...

Page 10: ...un properly IMPORTANT Holdpressureregulatorwith wrench when connecting it to gas piping and or fittings CAUTION Never connect heater directly to the propane LP supply This heater requires an external...

Page 11: ...ppliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHATTODOIFYOUSMELLGAS Do not try to light any appliance Do not touch any elec...

Page 12: ...ol knob Note If pilot goes out repeat steps 3 through 7 This heater has a safety interlock system Wait one 1 minute before lighting pilot again 8 Turn control knob counterclockwise C clockwise to desi...

Page 13: ...an WARNING Turn off heater and let cool before cleaning CAUTION You must keep control areas burner and circu lating air passageways of heater clean Inspect these areas of heater before each use Have h...

Page 14: ...d REMEDY 1 Replace ignitor 2 Replace ignitor 3 Reconnect ignitor cable 4 Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry 5 Tighten nut holding piezo ignitor to heater cabin...

Page 15: ...ound clean burner see Cleaning and Maintenance page 13 2 Replace gas regulator 1 Problem will stop after a few hours of operation 1 Turn control knob to LO position and let warm up for a minute 2 Oper...

Page 16: ...se just after burner is lit or shut off Heater produces unwanted odors Heater shuts off in use ODS operates Gas odor even when control knob is in OFF position Gas odor during combustion Moisture conde...

Page 17: ...may be low When Gas Quality Is Bad pilot will not stay lit burner will produce flames and soot heater will backfire when lit Youmayfeelyourgaspressureistoolowor gas quality is bad If so contact your l...

Page 18: ...ted on the back page of this manual FLOOR MOUNTING STAND 20 000 Btu Hr Models CGP20TLB GA4500L Ivory CGP20TB GA4500 Champagne 30 000 Btu Hr Models CGP30TLB GA4510L Ivory CGP30TB GA4510 Champagne For l...

Page 19: ...ww nbmc com Washer Equipment Co 1715 Main Street Kansas City MO 64108 2195 KS MO AR 816 842 3911 www washerparts com East Coast Energy Products 707 Broadway W Long Branch NJ 07764 1542 732 870 8809 1...

Page 20: ...20 104332 BLUE FLAME PROPANE LP HEATER 11 1 11 2 CGP20TB CGP20TLB CGP30TB CGP30TLB ILLUSTRATED PARTS BREAKDOWN 1 2 3 4 5 6 7 8 9 10 10 11 12 13 14 16 18 19 20 21 22 15 23 24 17 7...

Page 21: ...Cable 1 10 098249 01 098249 01 Nut M5 2 11 103594 04 103594 04 Pilot ODS 1 11 1 098514 01 098514 01 Thermocouple 1 11 2 106842 01 106842 01 Ignitor Electrode 1 12 103446 01 103447 01 Burner 1 13 0993...

Page 22: ...the unit This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts that fail or become damaged as a result of misuse accidents lack of proper m...

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