www.desatech.com
120942-01E
19
WARNING: Use only in areas
free of high dust content.
TroUBLeSHooTing
Continued
REMEDY
1. A) Refill tank
B) Provide additional and/or
larger tanks. See
Propane
Supply
, page 6
2. This can happen when running
heater in temperatures above
85° F (29˚ C). Run heater in
cooler temperatures
3. Check heater inlet and outlet.
Remove any obstructions
4. Replace motor and blower as-
sembly. See page 13
5. Clean heater. See
Mainte
-
nance
, page 13
1. Check all connections for
leaks. Apply noncorrosive leak
detection fluid to gas joints.
Bubbles forming show a leak
that must be corrected
2. To obtain correct mixture of
propane/LP gas and air, use
a larger cylinder size, i.e.
100 lb. See
Propane Supply
,
page 6
3. Use a larger supply cylinder
size, i.e. 100 lb.
POSSIBlE CAUSE
1. Propane supply may be
inadequate
2. High surrounding air tem-
perature causing thermal
limit device to shut down
heater
3. Restricted air flow
4. Damaged fan
5. Excessive dust or debris in
surrounding area
1. Gas leak
2. Heater operating on a 20 b.
propane/LP cylinder. Insuf-
ficient propane/LP gas will be
supplied by a 20 b. cylinder
resulting in odor
3. Propane/LP supply tank is
"freezing up". Evaporation
and consumption rate of
propane/LP from supply tank
is to great for the size of the
tank and air temperature
ObSERVED FAULT
Heater shuts down while
running
Heater producing odor
TecHnicaL Service
You may have further questions about installa-
tion, operation, or troubleshooting. If so, con-
tact DESA Heating, LLC at 1-866-672-6040.
When calling please have your model and
serial numbers of your heater ready.
You can also visit DESA Heating, LLC’s web
site at
www.desatech.com
.
