NEED A CIRCUIT CARD FOR LIVING AIR BY ECOQUEST..

Try checking each of the individual little pieces on the circuit board. You might have some 'gunk', grease or whatever that is clotting a connection. Try GENTLY using a bamboo skewer to clear any obstruction. You may find that 1 of your connections is bad. Take the board to a 'space junk' store that will probably have a replacement part for you. It should be installed using a micro-soldering kit, but you might have a buddy who assembles computer boards - - - or someone familiar with old fashioned circuit boards as in a radio, etc. who can help you in replacing it.

Circuit boards are not sold separately as far as I know. Best is to call EcoQuest and to ask what it would cost to repair. Or you could try your luck on Craigs list or ebay and buy an older model for parts.

Dutch