Heater keeps shutting off - Holmes Products Heating & Cooling

The 8-hour limitation is probably a safety design to keep your heater from overheating. Get another heater with a longer program capability, or plugin a second heater when the first one shuts down.

Could be the thermostat is faulty or perhaps the heating element has developed a fault that is overloading and causing something to keep tripping out.

If the heater is modern it could have electronics that are causing problems.

fatly over heat switch or tilt switch some r very picky

1) Product unknown,. Copy following link:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#ECO

2) Add comment with brand and type water heater if more help needed. Jan 2013

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Check freezer fan is working.If ice formed over freezer fan by working. It's a common problem due to irregular defrosting. Keep freezer setting temp at 5 degree. And check defrost timer, thermostat,heater are working properly.
Turn timer with small tip screw driver to shut off fridge. If not shut off, replace timer. Turn counter clockwise defrost thermostat. If fridge not shuts off replace defrost thermostat.Check heater by join the 2 wires in the defrost thermostat. And after 1 minute, unplug power and keep your arm on heater. If it's warm heater is o.k. Otherwise, replace heater.
Once heater starts work at regular interval controlled by thermostat and timer, defrost will be good and effective cooling will also be in fridge compartment.

I have a code showing C7 13 the heater runs for about 2 to 3 mins then shuts off. Any suggestions?

Ken,

The screen for the circulating fan has lint on it. Remove it from the back top panel and wipe it off. The lint keeps the air from be able to blow over the stove and it overheats.

Good luck,

Tom

mine does the same thing every year. I just clean out the dust from the vents on the back of the heater so the heater can breath otherwise it could get too hot and the safety fetcher kick in and makes the heater stop working.

my heater says if the pilot light keeps going off automatically it is a safety function that means it does not have enough fresh air to operate