Desa VFRMV18PB, VFRMV18NB, VFRMV24NB, VFRMV24PB installation manual Troubleshooting, Maintenance

Page 23

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

ODS/pilot lights but flame goes

1. Control knob not fully pressed in

1.

Press in control knob fully

out when control knob is re-

2. Control knob not pressed in

2.

After ODS/pilot lights, keep

leased

 

long enough

 

control knob pressed in 30

 

3.

Safety interlock system has

3.

seconds

 

Wait one minute for safety in-

 

 

been triggered

 

terlock system to reset. Repeat

 

4.

Equipment shutoff valve not

4.

ignition operation

 

Fully open equipment shutoff

 

5.

fully open

5.

valve

 

Pilot flame not touching ther-

A) Contact local natural or

 

 

mocouple, which allows ther-

 

propane/LP gas company

 

 

mocouple to cool, causing pilot

 

B) Clean ODS/pilot (see

 

 

flame to go out. This problem

 

 

 

could be caused by one or both

 

Cleaning and Maintenance,

 

 

of the following:

 

page 20) or replace ODS/pilot

 

 

A) Low gas pressure

 

assembly

 

 

B) Dirty or partially clogged

 

 

 

 

6.

ODS/pilot

6.

Hand tighten until snug, then

 

Thermocouple connection

 

7.

loose at control valve

7.

tighten 1/4 turn more

 

Thermocouple damaged

Replace pilot assembly

 

8.

Control valve damaged

8.

Replace control valve

 

 

 

 

 

Burner does not light after ODS/

1. Inlet gas pressure is too low

1.

Contact local natural or pro-

pilot is lit

2.

Burner orifice(s) clogged

2.

pane/LP gas company

 

Clean burner(s) (see Cleaning

 

 

 

 

and Maintenance, page 20) or

 

3.

Mislocated crossover tube

3.

replace burner orifice(s)

 

Contact qualified service person

 

4.

Remote selector in OFF posi-

4.

Put remote selector in ON

 

5.

tion

5.

position

 

Wire disconnected from gas

See Wiring Diagram, page 21

 

 

control

 

 

 

 

 

 

 

 

Delayed ignition of burner

1. Manifold pressure is too low

1.

Contact local natural or pro-

 

2.

Burner orifice(s) clogged

2.

pane/LP gas company

 

Clean burner(s) (see Cleaning

 

 

 

 

and Maintenance, page 20) or

 

 

 

 

replace burner orifice(s)

 

 

 

 

 

Burner backfiring during com-

1. Burner orifice is clogged or

1.

Clean burner (see Cleaning

bustion

 

damaged

 

and Maintenance, page 20)

 

2.

Damaged burner

2.

or replace burner orifice

 

Replace damaged burner

 

3.

Gas regulator defective

3.

Replace gas regulator

116412-01B

www.desatech.com

23

Image 23
Contents Ansi Z21.11.2b-2004 Ansi Z21.60-2003 Models VFRMV18NB, VFRMV18PB VFRMV24NB and VFRMV24PBTable of Contents Safety Information Safety Information Local Codes Optional Remote Control AccessoriesProduct Features Product IdentificationFor Appliance Location Air For Combustion VentilationProviding Adequate Ventilation Determining FRESH-AIR FlowVentilation Air From Inside Building AIR for Combustion VentilationVentilation AIR Ventilation Air From Outdoors InstallationCeiling Installation and Clearances for vent-free operationCheck GAS Type Minimum Noncombustible Material Clearances Safe InstallationFloor Clearances Mantel ClearancesMasonry Manufactured FireplaceFireplace Installing Damper Clamp Accessory for Vented OperationInstalling Remote Control Accessory bracket Installing Heater AssemblyInstallation Items Needed Connecting to GAS SupplyChecking GAS Connections Pressure Testing Gas Supply Propane/LP FromTest Pressures Equal To or Less Than Psig 3.5 kPa Pressure Testing Heater Gas ConnectionsPiping System Test Pressures In Excess Of 1/2 Psig KPa Lighting Instructions For Your Safety Read Before LightingOperating Heater Shutting Off Heater Operating HeaterTo Turn OFF GAS To Appliance Propane/LPNaturalOn/Off Series Model HRC100 Manual Lighting ProcedureOptional Hand-Held Remote OperationInspecting Burners Safety FeaturesAuto Shutoff Feature Key Pad Lock FeatureBurner Injector Holder Pilot Air Inlet Hole Cleaning MaintenanceBurner Flame Pattern Propane/LP Cleaning MaintenanceWiring Diagram Technical ServiceObserved Problem Possible Cause Remedy TroubleshootingMaintenance, TroubleshootingOperation Processes and logs curing Hours of operation Checking Gas Connections Gas leak. See warningAccessories SpecificationsReplacement Parts Service HintsAccessories Models VFRMV18NB, VFRMV18PB, VFRMV24NB Shown and VFRMV24PB Illustrated Parts BreakdownParts List 116412-01B 116412-01B Limited Warranty VENT-FREE GAS LOG Heaters Warranty InformationKeep this Warranty

VFRMV18PB, VFRMV18NB, VFRMV24NB, VFRMV24PB specifications

The Desa VFRMV series is a sophisticated line of heating solutions known for its efficiency and modern design. The models in this series include the VFRMV24NB, VFRMV24PB, VFRMV18NB, and VFRMV18PB, each sharing a commitment to provide superior comfort and versatility in various living spaces.

One of the most notable features of the VFRMV series is its advanced heating technology. These units are equipped with a powerful burner system designed to maximize heat output while minimizing energy consumption. This makes the units not only environmentally friendly but also cost-effective, as users can enjoy warm indoor spaces without incurring high energy bills. The gas burners achieve a high thermal efficiency, ensuring that a significant amount of heat is delivered into the room promptly.

The VFRMV series is designed with customer convenience in mind. The models feature easy-to-read digital displays that allow users to adjust temperatures and settings effortlessly. These displays are intuitive, providing feedback on heating levels, operational status, and timer functions, enhancing the user experience. Furthermore, the inclusion of a remote control option allows homeowners to manage the heating from the comfort of their sitting area.

In terms of safety, the VFRMV series implements several key features. Each unit is equipped with an oxygen depletion sensor and a safety shut-off system. This ensures that the unit operates safely within its designated space, automatically shutting down if carbon monoxide levels rise or oxygen levels drop beyond safe limits. This commitment to safety provides peace of mind for households, making it a suitable choice for a wide range of environments.

Aesthetically, the VFRMV24NB and VFRMV24PB models feature a sleek design, with the "NB" models showcasing a bold black finish, while the "PB" variants offer a more classic propane-blue coloration. The smaller VFRMV18 series similarly combines elegance with functionality, ensuring that they can seamlessly blend into any home décor.

In summary, the Desa VFRMV24NB, VFRMV24PB, VFRMV18NB, and VFRMV18PB models exemplify modern heating solutions. With their advanced burner technology, user-friendly features, stringent safety measures, and stylish designs, they cater to contemporary requirements for effective indoor heating. Whether for residential or commercial use, the VFRMV series promises reliability and comfort all year round.