Blocked Flue - Drolet Edison Installation And Operation Manual

Edison Installation and Operation Manual

9.3.1 Blocked Flue

o Pressure tap (located on the clean out trap) or tube is blocked. Remove the clean
out trap on which the pressure tap is installed and brushed it. Pull off the air hose at
both ends. WARMING: THE TUBE MUST ABSOLUTELY BE DISCONNECTED
FROM BOTH ENDS AS TO NOT DAMAGE THE PRESSURE SWITCH. Blow in the
air tube. If air flows freely, the hose is fine. If air does not flow through the hose, use a
thin wire to clear the blockage.
o The flue is blocked or needs cleaning. One of the following components is
obstructed or blocked by ashes of by a foreign object; air intake shutter, combustion
blower, burn pot, heat exchangers and exhaust channels, exhaust blower and or
venting system. Refer to the maintenance section.
o The flue is not properly installed. Make sure the venting system meets the criteria in
the installation section of this manual as well as the venting system manufacturer's
instructions.
o A back draft occurred inside the flue. This can occur on a very windy day or if your
venting system does not have a proper termination.
o The pressure switch hose is disconnected. Make sure the pressure switch hose is
well installed on the pressure tap and on the bottom tap of the switch. If not, reinstall it.
o The exhaust or combustion blower failed. Go to the troubleshooting page on the
LCD touch screen and test the exhaust and the combustion blowers independently
(see Section 9.2: Testing Components). If one of them does not work, make sure
there is power and that blowers are well connected.
combustion or exhaust blower is probably defective. Replace the faulty part.
o Pressure switch is defective. Even if this is very rare, the pressure switch could be
defective. To test it, go to the troubleshooting page on the LCD touch screen (see
Section 9.2: Testing Components). Start the exhaust blower. If the pressure switch
square switches from the right column to the left column, it means the pressure switch
functions. If not, the pressure switch is defective and needs to be replaced.
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If they still don't work, the