BRY-AIR DEHUMIDIFIER TROUBLE-SHOOTING GUIDELINES
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TROUBLE
PROBABLE FAULT
PROBABLE CAUSE
CORRECTIVE ACTION
Inadequate process or
reactivation airflow cont’d...
e. Clogged coil(s). (high
pressure drop).
e. Clean.
ELECTRIC
1. Element burnout.
1. Replace.
2. Low voltage.
2. Correct power supply.
3. Tripped high limit.
3. Reset.
4. Faulty control elements.
4. Check, repair, or replace.
STEAM
1. Inadequate steam
pressure.
1. Check steam pressure at
coil.
2. Clogged, fouled, or
inoperative valves,
strainers, or traps.
2. Clean, repair, or replace.
3. Leaky coil.
3. Repair or replace.
GAS
1. Flame out.
1. Check per item.
a. Faulty or tripped
combustion control.
a. Reset or replace.
b. Low gas pressure, low gas
pressure switch tripped.
b. Check gas supply
pressure, adjust pressure
regulator, reset low gas
pressure switch.
c. Excessive gas pressure,
high gas pressure switch
tripped.
c. Adjust or replace pressure
regulator, reset high gas
pressure switch.
d. Faulty flame rod.
d. Replace.
e. Faulty ignition
transformer.
e. Replace.
f. Faulty automatic control
valve.
f. Replace.
g. Reactivation air flow.
g. See "inadequate air flow".
Inadequate or no reactivation
heat
h. High temp. Limit tripped.
h. Reset.
1. Air leakage into
dehumidifier.
1. Replace panel gaskets and
seals.
Air seals and gaskets
2. Air bypassing media or
leaking seals.
2. Check media position,
replace seals.
1. Media drive failure.
1. Check per item.
a. Belt.
a. Repair or replace.
b. Motor.
b. Repair or replace.
2. Damaged desiccant
media.
2. Repair or replace.
Unit running but humidity
rises cont’d...
Ineffective desiccant media
3. Contaminated or damaged
desiccant.
3. Replace desiccant.
(Brysorb desiccant only)
