22
23
PROBLEM
PROBABLE CAUSE
SOLUTION
UNDER SIZED HR
V
MALFUNCTION
WITH HR
V
INSPECT
F
AN
WHEELS
T
O ENSURE
THEY
ARE
TURNING FREEL
Y
CONDENSA
TION OR ICE BUILD
UP
IN INSULA
TED DUCT
INCOMPLETE
V
APOUR BARRIER
AROUND
INSULA
TED DUCT
TAPE
ALL
JOINTS
ENSURE
THA
T
V
APOUR BARRIER IS COMPLETEL
Y
SEALED
UNUSUALL
Y
HUMID
AMBIENT
WRONG
APPLICA
TION OF HR
V
DOOR GASKET
DAMAGED
REPLACE GASKETING
W
A
TER LEAKS
HR
V
NOT
LEVEL
LEVEL
HR
V
EXCESSIVE
W
A
TER DUE
T
O NEW
WET
CONSTRUCTION
OPERA
TE HR
V
ON LOWER SPEED ie. INTERMITTENT
FROST
ON FRESH
AIR INT
AKE
& ST
ALE
AIR EXHAUST
FLEX
HR
V
CORE INST
ALLED IN REVERSE
INST
ALL
CORE CORRECTL
Y
“FRONT” OF CORE HAS INST
ALLA
TION INSTRUCTION LABEL
INST
ALL
WITH LABEL
F
ACING HR
V
DOOR
V
APOUR BARRIER INCOMPLETE
REP
AIR SEAL
OF
ALL
CRACKS
AND
TEARS
HR
V
ST
A
TUS P
ANEL
FLASHING
HIGH CONTINUOUSL
Y
HR
V
INTERNAL
DEHUMIDIST
A
T
SET
T
O LOW
ADJUST
DEHUMIDIST
A
T
T
O HIGHER SET
POINT