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blower keeps running on 383KAV gas furnace - error code is 33
I am having problems with my Bryant 383KAV gas furnace
The owners manual can be found he http://www.gogeisel.com/geiselonline...CAV_Gas_OM.pdf My problem is that it won't heat or cool and the blower keeps running non stop, even when the thermostat is set to OFF. I think the problem is a result of switching the programmable thermostat from HEAT to COOL or COOL to HEAT too quickly. I guess I should have set it to off. The Bryant 383KAV has a status LED code. The LED code is currently reading: "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 |
Thomas Miller wrote:
I am having problems with my Bryant 383KAV gas furnace The owners manual can be found he http://www.gogeisel.com/geiselonline...CAV_Gas_OM.pdf My problem is that it won't heat or cool and the blower keeps running non stop, even when the thermostat is set to OFF. I think the problem is a result of switching the programmable thermostat from HEAT to COOL or COOL to HEAT too quickly. I guess I should have set it to off. The Bryant 383KAV has a status LED code. The LED code is currently reading: "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 Hi, Actually the controller does not know blower is going. Maybe the relay supplying power to the motor is stuck or shorted. Tony |
Tony Hwang wrote:
Thomas Miller wrote: I am having problems with my Bryant 383KAV gas furnace The owners manual can be found he http://www.gogeisel.com/geiselonline...CAV_Gas_OM.pdf My problem is that it won't heat or cool and the blower keeps running non stop, even when the thermostat is set to OFF. I think the problem is a result of switching the programmable thermostat from HEAT to COOL or COOL to HEAT too quickly. I guess I should have set it to off. The Bryant 383KAV has a status LED code. The LED code is currently reading: "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 Hi, Actually the controller does not know blower is going. Maybe the relay supplying power to the motor is stuck or shorted. Tony Hi, Doesn't have auto-manual fan switch on the wall thermostat? Maybe it's in manual by accident? Tony |
Hi Thomas, hope you are having a nice day On 09-Oct-04 At About 07:46:56, Thomas Miller wrote to All Subject: blower keeps running on 383KAV gas furnace - error code is 33 TM From: (Thomas Miller) TM I am having problems with my Bryant 383KAV gas furnace TM The owners manual can be found he TM http://www.gogeisel.com/geiselonline...73LAV_376CAV_3 TM 83KAV_395CAV _Gas_OM.pd TM My problem is that it won't heat or cool and the blower keeps running TM non stop, even when the thermostat is set to As the code says the limit or rollout switch is open. what you really need to do is call a local company to check it for you as the safety opened for a reason and that needs to be corrected or it will just happen again. -= HvacTech2 =- ... URA Redneck if you've worn something to church having sequins on it. ___ TagDude 0.92á+[DM] ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++ spam protection measure, Please remove the 33 to send e-mail |
The fan switch on the thermostat is set to "AUTO" and not "ON". I just
removed the thermostat and the fan is still blowing so it has nothing to do with the thermostat. |
"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 |
"Greg O" wrote in message ... "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 Does anything else work? Could be a bad transformer... |
I fixed it by removing the limit switch, cleaning it, tapping on the
switch, screwing it back in and turning the circuit back on. Working great now. |
"Thomas Miller" wrote in message om... I fixed it by removing the limit switch, cleaning it, tapping on the switch, screwing it back in and turning the circuit back on. Working great now. Ya, til your house burns down from a defective limit switch. There is a reason it opened in the first place. You need to have your system checked and that 30$ limit switch replaced by a licensed competent technician. |
everything is working fine now. Thanks.
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