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TROUBLESHOOTING YOUR FURNACE
ISSUE
4.
Furnace not producing
sufficient heating.
5.
Furnace operates but will
not shut off when room
temperature is attained.
6.
Thermostat plugged in
but won't turn on.
36
CARMEL
TM
AC2030TNA TOP VENT GAS WALL HEATER
POSSIBLE CAUSE(S)
A.
Furnace may be too small
for space being heated
A.
Thermostat wiring defective.
B.
Thermostat location.
C.
Defective thermostat.
A.
Internal wire disconnected.
CORRECTIVE ACTION
A.
Check heat sizing calculations.
A.
Thermostat lead wires may be shorted
together, caused by a nail or staple. Check
by removing thermostat leads from
valve terminals.
B.
Check thermostat location. If on an
outside wall, or there is a hole in the
wall behind the thermostat, cold air
may be coming in contact with the
thermostat. Relocate.
C.
Check thermostat calibration; verify
thermostat temperature reading;
or replace.
A.
Open thermostat and reconnect wire.
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