Bryant ERVBBLHU1150, Installation, Start-Up, And Operating Instructions Manual, Page: 13 / 16

Fig. 17–Energy Recovery Ventilator
A99300
DOOR IS
DETACHABLE
FILTERS ARE
REMOVABLE BY
PULLING STRAIGHT
OUT
ENERGY RECOVERY
CORE CAN BE REMOVED
BY PULLING STRAIGHT OUT
BRIEF CASE
TYPE LATCH
TABLE 4–TROUBLESHOOTING CHART
SYMPTOMS CAUSES SOLUTIONS
Air too humid
Continous ex-
hange mode
used in small
house Use Intermittent
Mode Check
humidity level
settings
Unit not re-
sponding to
wall control
Is in defrost
Wait until de-
frost has termi-
nated, maximum
of 40 minutes
Broken control
wire
Test wall con-
trol, check con-
nections, check
thermistor
Unit stops mo-
mentarily Electrical supply
interrupted Check units cir-
cuit breaker
Air from distri-
bution register
too cold Improper cali-
bration of air
flow
Check calibra-
tion of flow rates
Unit makes an-
noying noise
Ventilation
wheel out of ad-
justment
Remove the mo-
tor and screw
wheel on prop-
erly
Noise level too
high at distri-
bution regis-
ters when in
high speed
Air duct system
too short Install a duct
silencer
—13—