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Gas furnance would only operate for about 3-5 minutes then turn off. Replaced gas valve on furance for a Rudd comerical A/C 4 ton unit model UKKA-A048JK10E. Now the blower fan turns on but the igniator and gas does not come on as before. LED light (flashes 5 times) on board indicates flame roll out switch is open. Need manual to locate roll out switch, does it have a reset button or does it need to be replaced?

Answers :

The rollout switches will be located at the ends of the burner assembly and will have a manual reset. they must be manually reset to ensure that the problem has been corrected. Most units will go into a soft lockout for a time and eventually a hard lockout if the problem persists. Go to tempstar.com and go to their troubleshooting section for a gas furnace. the codes they give are pretty common for alot of furnaces and see if they help

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Gas furnance would only operate for about 3-5 minutes then turn off. Replaced gas valve on furance for a Rudd comerical A/C 4 ton unit model UKKA-A048JK10E. Now the blower fan turns on but the igniator and gas does not come on as before. LED light (flashes 5 times) on board indicates flame roll out switch is open. Need manual to locate roll out switch, does it have a reset button or does it need to be replaced?

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