"Thomas Miller" wrote in message
om...

My problem is that it won't heat or cool and the blower keeps running
non stop, even when the thermostat is set to


"code 33" - "LIMIT OR FLAME ROLLOUT SWITCH IS OPEN
If limit switch is open longer than 3 minutes code changes to code NO.
13
Check for:
a)Blower motor failure
b)motor start capacitor
c)open flame rollout switch, manual reset
d)inadequate combustion air supply (flame rollout switch only)
e)dirty air filter
f)defective limit switch or connections
g)loose blower wheel"


The units blower has been running for about 5 hours non-stop and the
LED status is still "33". It has not changed to

code 13 yet. Here is what the manual says for code 13. "LIMIT OR
FLAME ROLLOUT SWITCH LOCKOUT- LIMIT SWITCH WAS

OPEN LONGER THAN 3 MINUTES. AUTO-RESET WILL OCCUR AFTER 3 HOURS. FLAME
ROLLOUT SWITCH REQUIRES MANUAL RESET. SEE

#33."

I have already done the manual reset limit switch procedure and
restarted the furnace and the problem still exists.

The fan blower is running constantly and the error code is still "33"

What is the next step I should take? How do I test to see if it is a
bad capacitor or a bad s

My best guess is there is still a limit open somewhere. Many gas furnaces
will do as your's is when a limit trips.
Best bet is to get out the yellow pages!
Greg