Technical Service - Master TB116A Owner's Manual

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.
120942-01E
TroUBLeSHooTing
Continued
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
WARNING: Use only in areas
free of high dust content.
1. Gas leak
2. Heater operating on a 20 lb.
propane/LP cylinder. Insuf-
ficient propane/LP gas will be
supplied by a 20 lb. 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
www.desatech.com
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.
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