20 Most Recent Williams 2509612 Ceramic Mid-Size Heater - Page 2 Questions & Answers

Here is an old school trick. As long as the heat exchanger is in good shape, get a hammer and put a dent or two in the heat exchanger and it will quiet it down considerable.

This heater has 2 type gas valves one valve has the thermostat built into it. No wiring needed for that puppy. Looks like this:So I am guessing that one ain't you. Your heater must use a millivolt gas valve with the 2 wire wall thermostat. The pilot generator does 2 things. It holds the pilot on and it produces voltages that operate the solenoid and open and close the valve when the room thermostat makes contacts. So what goes wrong with these? The pilot generator will sometimes hold the pilot flame but whn the 2 wires are touched together or you tun on the wall thermostat the whole thang just dies. That my friend is a weak thermopile generator. The other thang that goes wrong is the solenoid on the gas valve is open and therefore the gas won't come on. Their is also a fuse mounted on there that melts and kills the magnet that the generator holds in for the pilot. If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

Hi, If the pilot light goes out when you turn the gas knob to full power on lighting them the most likely cause will be a worn thermocouple, these usually last between 2 years up to 6 years. Found this site very helpful, patio heater problem solving. They have a few solutions to checking patio heaters.

Thermocouple bad or loose.

does pilot lie when you hold down the button?

I have a Charmglow Patio Heater Model SRPH02, it needed a Thermocouple and searching the net was hard to find an ariginal part, but here it is, call 1-866-814-0585 $3.95 +6.00 shipping the original part.

From everything you tried to cover, the problem lies in the wall thermostat. Repairing it isn't a good option. Replacing it is fairly inexpensive to do. Just make sure you replace it with one of the same voltage. Or if it's a millivolt control valve on the heater, make sure the replacement is for millivolt operation.

Hope this helped you solve the problem.

If you are saying that the pilot stays lit but when there is a call for heat the heater lights but goes out within a few minutes, it has to be because the seal between the air intake and exhaust is not sealed or installed correctly. If you are saying that the pilot light does not stay lit, it will be a bad thermocouple. Not exactly sure what you mean!

Take the two wires going to the thermostat and cross them. If the unit starts, you have a bad thermostat. If it doesn't, at the heater put a jump wire across the terminals where the thermostat wires are connected to. If the unit starts, one of the wires going to the thermostat are broke. If it still doesn't start you may have a bad transformer. Check for 24 volts AC across the two terminals on the gas valve. If yes, bad gas valve. If no, bad transformer.

what shuts off the pilot?

i'm having the same problems.......................

The thermocouple supplies millivoltage to the gas valve to energize it.
If the thermocouple is bad the valve will not stay open to allow gas, thus
no heat.

hello i find a 2509621 is this you model? if so a couple things to check. there is a reset in the top part of the furnace.look through the louvers ans you may see it.push in to reset and if it goes off again check the venting as this is a safety that tells if the vent is overheating. other thing to try. in the lower part where the pilot lite is you will see the gas valve. it has 3 wire connection points.one has a red wire with another wire. one has a white wire and one has another wire. use a paper clip or wire to jump the red to the other without the white wire this should turn the burner on. if this works check your thermostat/limit switch wiring. but by all means do not leave jumpered.

Remove your pilot assembly and remove the aluminum gas line going to it. Be careful when you take this off because there is an orifice inside of it that may or may not fall out. If it don`t fall out remove it. In the top of are a couple really small holes. Make sure they are clean. Also again clean the pilot hood of all debris. Reassemble everything and it should work fine. If not buy a replacement pilot assembly because I have had some that i couldn`t get clean enough not matter what I tried. Doesn`t happen often but does happen. New assembly always fixes it but a good cleaning usually does it.