Heater turn off by itself

  • The flame sensor monitors the burner to detect whether or not a flame is present. If the flame sensor is defective, it might fail to detect a flame. If the flame sensor does not detect a flame, the control board will shut off voltage to the gas valve to prevent the furnace from heating. Sometimes, if the flame sensor is dirty, it will fail to detect a flame. Try cleaning the flame sensor with a fine abrasive pad. If the furnace still doesn’t heat, replace the flame sensor.
  • The control board regulates the power supply to all of the components of the furnace. If the control board is defective, it might not send voltage to the ignition system, causing the furnace to shut off after a few minutes.
  • The pressure switch closes when the burner has sufficient airflow. If the pressure switch isn’t working, it might not close when the proper airflow is present, causing the ignition process to stall. If the ignition process stalls, the furnace will shut off. To determine if the pressure switch is defective, use a multimeter to test the switch for continuity. If the pressure switch does not have continuity, replace it.
  • The draft inducer motor draws air into the heat exchanger and then exhausts it out the flue. The pressure switch senses a pressure change and closes a switch to signal the control board that the furnace has proper air flow. If the draft inducer motor is defective, it may be unable to close the pressure switch, causing the ignition process to stall and the furnace to shut off after a few minutes. If the ignition process stalls, the furnace will shut off. If the draft inducer motor is at fault, replace it.
  • The flame rollout switch monitors the heat surrounding the burners. If the inducer fan motor cannot draw enough air through the burners, or if the furnace is not venting properly, the rollout switch will open to halt the ignition sequence and prevent the furnace from heating. When this happens, the furnace will shut off after running for a few minutes. To determine if the flame rollout switch is defective, use a multimeter to test it for continuity. If the switch does not have continuity, replace it. Be aware that poor airflow through the burner is often a result of insufficient ventilation or a restricted exhaust vent. Make sure that your furnace is in a properly ventilated location and the exhaust vent is clear of obstructions.
  • The furnace must have proper airflow through the burner in order to continue running. The furnace draws air from the surrounding area or from outside the room. If the furnace is located in a utility closet or in a cramped storage room, there may not be sufficient available air for the furnace to heat properly. If the furnace draws air from outside the home, check for an obstructions at the air inlet.

Fuse Appliance Repair will restore your Heater.

Appliance Repair in San Jose, CA

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Fuse HVAC& Appliance Repair Yelp reviews San Jose, CA and Nashville, TN

Lindsay T.
Lindsay T.
2019-06-13 10:39:32
My A/C has been broken through the heat wave the last few days and after a miserable few nights, I finally called around to find any HVAC repair with...
Cheryl H.
Cheryl H.
2019-06-07 18:02:52
Appreciated the prompt responses throughout the whole process. I contacted Fuse to take a look at my A/C system. Called on Thursday evening, was able to get...
Steve M.
Steve M.
2019-05-12 09:46:00
We had some hot days recently so we turned on our AC only to find out that no cold air was coming out! Fuse was easy to schedule with, showed up promptly,...
Steve M.
Steve M.
2019-04-27 11:46:03
We had some hot days recently so we turned on our AC only to find out that no cold air was coming out! Fuse was easy to schedule with, showed up promptly,...
Sara H.
Sara H.
2019-04-26 10:22:18
Adam and his team are excellent. We have their service for almost 3 years and not once i had any problems. Be it a commercial oven, a walkin freezer or air...
NguyenCat L.
NguyenCat L.
2019-03-20 10:58:08
I contracted Fuse HVAC to replace my AC/Heating system at home. So far, I'm very happy with the quality of their work. It was very easy to deal with them...
Janet L.
Janet L.
2019-03-18 19:16:16
Took advantage of the deal of the day they had for two appliances that needed repair. Got a confirmation call the next day to explain what the problems...
Stephanie C.
Stephanie C.
2019-03-14 13:53:24
I called HVAC in the evening and by noon the next day my fridge was fixed. Stan clearly explained how he was going to troubleshoot and kept me informed...
Miko M.
Miko M.
2019-03-12 17:15:13
Ryan came over and was very polite, fast and honest. It was a dryer blowing cold air. He arrived on time and quickly diagnosed the problem, it was a fuse....
Raj D.
Raj D.
2019-03-07 05:12:06
Fuse has been to our home to fix the waterheater when it would not light up again. They were prompt, finished the work very fair in price and really...
Yelp Rating
5.0

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6 months Warranty for replaced parts and labor

About us

Thank you for your interest in
Fuse Appliance Repair.

Phone: (408) 721-2530

Our addresses:
1) 2512 Seaboard Ave, San Jose, CA 95131
2) 349 Everett Ave, Palo Alto, CA 94301
3) 504 Shadow Gln, San Jose, CA 95129
4) 38000 Fremont Boulevard, Fremont, CA 94536
5) 908 Goose Lake Ct San Jose, CA 95123
6) 4848 San Pablo dam road, El Sobrante, CA 94803
8) 101 Hermitage Park Dr, Hermitage, TN 37076
9) 27416 Rondell St Agoura Hills, CA 91301
10) 6800 E Tennessee Ave, Denver, CO 80224

E-mail: support@fuserepair.com

Business Hours: 8am - 8pm every day