® VMH10TPA

VENT-FREE PROPANE/LP GAS COMPACT FIREPLACE

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 ignitor

 

6.

Ignitor electrode positioned wrong

6.

Replace ignitor

 

 

 

 

 

 

When ignitor button is pressed, there is

1.

Gas supply turned off or manual shutoff

1.

Turn on gas supply or open manual

spark at ODS/pilot but no ignition

 

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. Re-

 

 

 

 

peat igniting operation until air is removed

 

5.

Depleted gas supply

5.

Contact local propane/LP gas company

 

6.

ODS/pilot is clogged

6.

Clean ODS/pilot (see Cleaning and

 

 

 

 

Maintenance, page 23) or replace ODS/

 

 

 

 

pilot assembly

 

7.

Gas regulator setting is not correct

7.

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.

Manual shutoff valve not fully open

4.

Fully open manual shut-off 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-

 

B) Clean ODS/pilot (see Cleaning and

 

 

lem could be caused by one or both of

 

Maintenance, page 23) or replace ODS/

 

 

the following:

 

pilot assembly

 

 

A) Low gas pressure

 

 

 

 

 

B) Dirty or partially clogged ODS/pilot

 

 

 

 

7.

Thermocouple damaged

7.

Replace thermocouple

 

8.

Control valve damaged

8.

Replace control valve

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Desa VMH10TPA installation manual Troubleshooting, Observed Problem Possible Cause Remedy

VMH10TPA specifications

Desa VMH10TPA is a versatile and innovative heating solution designed to meet the demands of modern living environments. This gas-powered heater is part of a broader trend towards efficient, reliable, and user-friendly heating systems that cater to both residential and commercial spaces. With its robust construction and advanced features, the VMH10TPA stands out in the market as a dependable option for those looking to maintain a comfortable atmosphere during the colder months.

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In terms of technology, the VMH10TPA utilizes advanced electronic ignition systems. This feature not only simplifies the ignition process but also enhances safety by reducing the risk of gas leaks associated with manual lighting methods. Additionally, the heater is equipped with temperature control settings, allowing users to customize their heating experience according to their needs.

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