Enviro EF2 Service Manual

43
Circuit Board Only: Check the heat level
indicator, is the #3 light will flashing?
Circuit Board Only: Check the fuses on the circuit board (see “trouBleShooting - CirCuit Board FuSeS”).
Circuit Board Only: Check the exhaust blower voltage across the blower
wires (refer to The hoW to’S For trouBleShooting - hoW to meaSure the
e
xhauSt BloWer voltage and taBle 2: Stove SpeCiFiCationS For voltageS, and
C.F.m. for actual voltage per model).
Does the blower’s voltage fail to reach the minimum reading for the model
shown in
taBle 2 with a line voltage >115VAC?
Replace the
Circuit Board.
YES
The exhaust temperature sensor’s contacts have
opened because a fire is not detected or the fire
has gone out because. Reset sensor.
See also
trouBleShooting - light #3 on heat output
Bar FlaShing - CirCuit Board only.
YES
Is the air
damper
setting
incorrect?
Unit may require a change to the vent system or installation of fresh air to
correct air to fuel ratio problems.
Adjust the slider damper using a magnehelic to set it. Refer to The
hoW
to’S For trouBleShooting - hoW to meaSure the vaCuum level produCed By the
exhauSt BloWer, and taBle 1: Stove SpeCiFiCationS For amperage, WattageS, and
magneheliC readingS.
Excessive air may consume the fire too quickly before the next drop of
fuel, leaving completely unburned fuel in the burn pot liner.
Insufficient air will cause build up, further restricting the air flow through
the burn pot liner. This in turn will cause the fuel to burn cold and very
slowly. Fuel may build up and smother the fire.
Also refer to the
Flame CharaCteriStiCS section.
YES
Visual check,
is the blower
motor
turning?
The combustion blower may not be turning fast enough to generate the
proper vacuum in the fire box.
Check vacuum levels in the exhaust channel by bypassing the vacuum
switch; refer to
the hoW to’S For trouBleShooting - hoW to By-paSS the
vaCuum SWitCh and hoW to meaSure the vaCuum level produCed By the exhauSt
BloWer.
Does the motor fail to reach the minimum reading for the model shown in
taBle 1: Stove SpeCiFiCationS For amperage, WattageS, and magneheliC readingS?
YES
Combustion blower failure - replace the combustion blower.
YES
NO
Troubleshooting
NO
NO

Enviro EF2 Specifications

General

Brand	Enviro
Model	EF2
Category	Stove
Language	English