Desa FMH26TP installation manual Troubleshooting, Observed Problem Possible Cause Remedy

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PROPANE/LP VENT-FREE FIREPLACE SYSTEM

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 and un- plug fireplace and let cool before servicing. Only a qualified ser- vice person should service and repair fireplace.

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.

Broken ignitor cable

3.

Replace ignitor cable

 

4.

Bad piezo ignitor

4.

Replace piezo ignitor

 

5.

Ignitor electrode broken

5.

Replace piezo ignitor

 

6.

Ignitor electrode positioned wrong

6.

Replace piezo ignitor

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

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.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. Re- peat igniting operation until air is removed

5.Contact local propane/LP gas company

6.Clean ODS/pilot (see Cleaning and Maintenance, page 19) or replace ODS/ pilot assembly

7.Replace gas regulator

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

1.Control knob not fully pressed in

2.Control knob not pressed in long enough

3.Safety interlock system has been triggered

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

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 19) or replace ODS/ pilot assembly

7.Replace thermocouple

8.Replace control valve

www.desatech.com

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107106

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Contents Compact Heat Majic What to do if YOU Smell GASSafety Information PROPANE/LP VENT-FREE Fireplace SystemProduct Features Local CodesProduct Identification UnpackingAssembly Installing LogAssembling Fireplace Assembling HoodAIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Fireplace Location Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation Installation ItemsCheck GAS Type Locating FireplaceBUILT-IN Fireplace Installation Rough Opening for Installing in WallOptional Mantel Installation Mantel Clearances for Built-In InstallationInstalling Blower Accessory GA3450T Removing Upper Louver AssemblyInstalling Blower Assembly Assembling Brass Trim Brass trim shipped with mantelPlug fan kit into 120-Volt For Built-In Installation Wiring Diagram For Blower Accessory Built-In InstallationAttaching Wood Base to Solid Floor Connecting to GAS SupplyExtension Cord Connecting Equipment Shutoff Valve to Heater Control Installation Items NeededChecking GAS Connections Pressure Testing Fireplace GAS ConnectionsPressure Testing Gas Supply Piping System Lighting Instructions For Your Safety Read Before LightingOperating Fireplace Inspecting Burner Cleaning and Maintenance Cleaning Burner Injector Holder and Pilot AIR Inlet HoleBurner Flame Pattern CabinetTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Gas leak. See Warning statement at Specifications Replacement PartsService Hints Technical ServiceIllustrated Parts Breakdown FMH26TPParts List Description QTYAccessories 107106 Warranty Information

FMH26TP specifications

Desa FMH26TP is a versatile and efficient heating solution that caters to a wide range of residential and commercial applications. Renowned for its innovative design and cutting-edge technology, this heater offers exceptional performance along with user-friendly features.

One of the standout characteristics of the FMH26TP is its ability to produce radiant heat quickly and efficiently. Equipped with a powerful heating capacity, it can seamlessly warm up large spaces, making it ideal for workshops, garages, and even outdoor settings. The installation is straightforward, and its compact design ensures that it can fit conveniently in various locations without obstructing valuable space.

The heater utilizes advanced thermal efficiency technologies, which not only enhance its heating performance but also contribute to energy savings. By effectively converting fuel into heat, the FMH26TP minimizes fuel consumption while delivering optimal warmth. This is particularly beneficial for users looking to reduce their energy bills without compromising on comfort.

Safety is a top priority with the Desa FMH26TP. The unit comes with several built-in safety features, including an automatic shut-off system that activates in case of overheating or if it detects any irregular functions. Additionally, the construction of the heater is robust, ensuring durability and longevity. The reliable design means it can withstand the demands of frequent use in various environments.

Another notable feature of the FMH26TP is its ease of operation. Users can conveniently control the heater with a user-friendly interface. It often includes a thermostat, allowing for precise temperature adjustments according to user preferences. Some models are also compatible with remote control systems, further enhancing user convenience.

The Desa FMH26TP is compatible with multiple fuel types, giving users flexibility. Whether powered by propane or natural gas, this heater adapts to the available fuel source, making it a practical choice for many households. Its adaptability ensures that it can serve a broader market, appealing to diverse consumer needs.

In conclusion, the Desa FMH26TP is a reliable heating solution that combines efficiency, safety, and flexibility. With its powerful heating capabilities and user-friendly features, it stands out as an excellent choice for anyone seeking an effective way to keep their spaces warm and comfortable during the colder months.
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