Desa CBT30NT, CBT30PT ODS/pilot lights but flame, Press in control knob fully, Assembly

Page 19

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

ODS/pilot lights but flame

1. Control knob not fully pressed in

1.

Press in control knob fully

goes out when control knob is

2. Control knob not pressed in

2. After ODS/pilot lights, keep con-

released

 

long enough

 

trol knob pressed in 30 seconds

 

3.

Equipment shutoff valve not

3.

Fully open equipment shutoff

 

 

fully open

 

valve

 

4.

Thermocouple connection

4.

Hand tighten until snug, then

 

 

loose at control valve

 

tighten 1/4 turn more

 

5.

Pilot flame not touching ther-

5.

A) Contact local natural or

 

 

mocouple, which allows ther-

 

propane/LP gas company

 

 

mocouple to cool, causing

 

B) Clean ODS/pilot (see

 

 

pilot flame to go out. This

 

Cleaning and Maintenance,

 

 

problem could be caused by

 

page 16) or replace ODS/pilot

 

 

one or both of the following:

 

assembly

 

 

A) Low gas pressure

 

 

 

 

B) Dirty or partially clogged

 

 

 

 

ODS/pilot

 

 

 

6.

Thermocouple damaged

6.

Replace pilot assembly

 

7.

Control valve damaged

7.

Replace control valve

 

8.

Safety interlock system has

8.

Wait one minute for safety in-

 

 

been triggered

 

terlock system to reset. Repeat

 

 

 

 

ignition operation

 

 

 

 

Burner(s) does not light after

1. Burner orifice(s) is clogged

1.

Cleanburnerorifice(s)(seeClean-

ODS/pilot is lit

 

 

 

ing and Maintenance, page 16)

 

 

 

 

or replace burner orifice(s)

 

2.

Inlet gas pressure is too low

2.

Contact local natural or pro-

 

 

 

 

pane/LP gas company

 

 

 

 

Delayed ignition of burner(s)

1. Manifold pressure is too low

1.

Contact local natural or pro-

 

 

 

 

pane/LP gas company

 

2.

Burner orifice(s) is clogged

2.

Cleanburnerorifice(s)(seeClean-

 

 

 

 

ing and Maintenance, page 16)

 

 

 

 

or replace burner orifice(s)

 

 

 

 

Burner backfiring during com-

1. Burner orifice(s) is clogged or

1.

Cleanburnerorifice(s)(seeClean-

bustion

 

damaged

 

ing and Maintenance, page 16)

 

2.

Burner damaged

 

or replace burner orifice(s)

 

2.

Replace burner

 

3.

Gas regulator defective

3.

Replace gas regulator

107882-01M

www.desatech.com

19

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Ignition System Product FeaturesSafety Device Local CodesUnusually Tight Construction AIR for Combustion VentilationProviding Adequate Ventilation Following are excerpts from National FuelVentilation Air From Inside Building Determining FRESH-AIR Flow for Heater LocationVentilation AIR Determining if You Have a Confined or Unconfined SpaceVentilation Air From Outdoors AIR for Combustion Ventilation InstallationInstallation Items Check GAS TypeThermostat Sensing Bulb Locating HeaterMarking Screw Locations Installing Heater to WallMounting Bracket Removing Front Panel Of HeaterPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsAttaching To Wall Stud Method Attaching To Wall Anchor MethodMounting Base Feet to Heater Connecting to GAS SupplyMounting Base Feet to Floor Where required by local code Mounting Heater to Floor OptionalClogged heater valves Dealer. See Accessories,Be upstream from heater see Figure Appliance Apply pipe joint sealant lightly to male NPTTest Pressures In Excess Of 1/2 Psig 3.5 kPa Checking GAS ConnectionsTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Operating Heater For Your Safety Read Before LightingLighting Instructions Thermostat Control Operation Manual Lighting ProcedureInspecting Heater To Turn OFF GAS To ApplianceBurner Pilot AIR Inlet Soft bristled brush to cleanBurner Flame Pattern ODS/PILOT and BurnerWhen Gas Pressure Is Too Low Cleaning MaintenanceService Hints Technical ServiceContact local propane/LP gas company TroubleshootingObserved Problem Possible Cause Remedy Control knob is not in pilot positionDelayed ignition of burners Manifold pressure is too low Goes out when control knob is Control knob not pressedProblem could be caused by AssemblyInitial operation Processes Hours of operation Noise when burner is litWhen heated, vapors from Turn heater off when using Slight smoke or odor duringGas leak. See Warning Specifications Service Publications Replacement PartsIllustrated Parts Breakdown 111435-01 Electronic Ignitor 097159-04 Piezo Ignitor Parts ListFront Panel 107954-01 107955-01 Floor Mounting KIT GA4550 AccessoriesEquipment Shutoff Valve GA5010 FAN Kits GA3250TParts Central Keep this Warranty Warranty Information

CBT30NT, CBT30PT specifications

The Desa CBT30NT and CBT30PT are high-performance heating solutions designed to deliver efficient warmth for both residential and commercial applications. These units are known for their reliability, innovative features, and easy integration into various spaces. They are particularly suited for those seeking effective heating options without compromising on energy efficiency.

The CBT30NT, or the natural gas version, stands out with its ability to provide consistent warmth through a direct vent system. This allows for safe operation while minimizing the impact on indoor air quality. It effectively draws combustion air from outside, which is essential for spaces with limited ventilation. The CBT30PT, on the other hand, is a propane variant, providing flexibility for users who may not have access to natural gas lines. Both models are designed with user convenience in mind, featuring a simple control system that allows for easy adjustments and temperature settings.

One of the key characteristics of these heaters is their advanced thermostat control, which enables precise temperature management. This feature ensures energy usage is optimized, preventing unnecessary heating and reducing utility costs. The compact and sleek design of the CBT30NT and CBT30PT allows them to fit seamlessly into any room without being an eyesore.

The heaters are equipped with durable materials, providing resilience against the rigors of daily use. They feature safety mechanisms, including flame failure safety devices, ensuring peace of mind for users. Furthermore, both models incorporate a forced air design, which disperses heat efficiently throughout the space, eliminating cold spots and creating a more uniform climate.

In summary, the Desa CBT30NT and CBT30PT are ideal heating solutions that combine safety, efficiency, and aesthetic appeal. Their natural gas and propane options respectively cater to a diverse range of user needs, making them versatile choices for enhanced comfort. With their advanced technology and user-friendly features, these heaters are a worthy investment for anyone in need of reliable heating solutions. Emphasizing energy efficiency and user safety, they represent the next generation of residential and commercial heating systems.
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