Yeoman DEVON 50 Seasonal use, Troubleshooting tips, User Instructions, 17.1Stove glass blackening

USER INSTRUCTIONS

16.Seasonal use

16.1Clean and service the appliance if it is not used during the warmer periods of the year as detailed in the Maintenance and Servicing section.

16.2Set the air controls 50% open to keep the appliance ventilated and stop the build-up of any moisture inside.

16.3Before re-lighting the appliance:

—Remove the baffle.

—Clear any debris that may have accumulated.

—Check the flue is clear of any blockages.

16.4If this appliance is unused for lengthy periods of time it should be periodically checked to ensure that condensation is not building up within the stove.

NOTE – THIS CONDENSATION IS NORMAL AND DOES NOT INDICATE A FAULTY OR LEAKING STOVE.

16.5If the stove is going to be unused for very long periods of time it is recommended to drain the system.

17.Troubleshooting tips

17.1Stove glass blackening

This has four possible causes:

1.Incorrect use of Airwash

See User Instructions, Sections 1, 4 and 5 for the correct use of the air controls.

2.Burning unseasoned wood

See User Instructions, Section 3 to identify when wood is ready for burning.

3.Stove operated at too low a temperature

A stove pipe thermometer can identify this problem (Stovax part no. 3046). The ideal working temperature range is 130°C - 250°C (270°F - 480°F). Failing to close down the Primary Air Control once the appliance has heated up to this range may cause the appliance to exceed the ideal temperature range and to over-fire. Over-firing can cause permanent damage to the appliance and invalidates your warranty. Burn with the Airwash Control fully open for approximately 20 minutes to cure this.

The problem may be caused by damping down the appliance during periods of extended burning.

4.Problems with the flue, in particular insufficient air pull. If the flue is not working efficiently the glass can blacken. A flue which has too much downdraft may be too short, needs lining, or has too many bends. This can also cause blackening of the stove glass. Contact the installer or a flue specialist for advice.

17.2Riddling mechanism jamming

This occurs when fine ash builds up under the riddling bars preventing movement. To prevent this:

—Follow a regular cleaning routine for the inside of your appliance.

—Lift out the riddling mechanism and remove all ash.

—Replace riddling mechanism when cleaning is complete.

17.3Glass cracking

Do not over tighten the screws on the glass clips when replacing the glass. This causes stress and the intense temperature changes can cause the glass to crack. For replacement glass contact your local Yeoman retailer.

17.4Appliance is producing tar This can be identified by:

—A very strong pungent smell shortly after the appliance is lit and heats up.

—Glass blackening.

—Thick, brown, sticky tar oozing from the pipe joints.

This is caused by burning damp wood and running the appliance at too low a temperature.

Use well seasoned wood and operate the appliance within the ideal temperature range.

Tar is a major cause of chimney fires. If the appliance experiences problems with tar build up consult a chimney sweep before continued use of the appliance.

17.5All or some of the radiators do not get hot

		Open up the airwash to make
		a hotter fire
		If fitted set the thermostat to a
Burning wood	Wood is burning too	higher setting
		Burn dryer wood
	slowly
		Burn better quality wood
		Reduce ashbed to 1" thick
		Open up the primary air to
		make a hotter fire. If fitted,
		set the thermostat to a higher
Burning Solid	Fuel is burning too	setting
		The fire needs riddling to
Mineral fuels	slowly
		remove ash. De-ash the fire
		Empty the ash pan.
	Stove is not producing	Not enough fuel.
All Fuels	much heat.
		Bleed the radiators to ensure
	System faults	there are no air locks.
		Incorrect system design seek
		professional assistance
		Too many radiators in the
		system exceeding the stoves
		capabilities.

17.6In the unlikely event of a problem that cannot be solved by these tips contact your installer or retailer for help.

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