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Gas is on can hear ignition. Doesn't light. May not have gas to heater. Air in line?
Check also to see if the valve on the gas valve itself is in the "ON" position. Is it on or off?If it is on, then you may in fact have air in the gas line that needs to be purged. BE CAREFUL WHEN PERFORMING THESE STEPS!! ESPECIALLY IF PROPANE GAS - LPG!!!!!!Have a large piece of cardboard or the front cover/door of your heater will suffice. If solid pipe to heater, then there is a union, if you have flexible gas line to heater then you have a flare nut. With NO flames or sparks even close - NO SMOKING !!!Carefully & slowly loosen either the union or the flare nut with gas valve open. You will hear hissing sound. Leave open for about 30 seconds, until you smell the gas. Carefully & slowly tighten either the union or the flare. Take the cardboard or door, and fan towards the heater to push away and fan away any gas fumes. Do this for about a minute or so. Very Important you do this, again especially if Propane. Propane is a very heavy gas & it will linger in a "Puddle", unseen puddle near the heater. If you did not fan away these fumes, when the heater starts to ignite - .... not so pretty. Anyway, if you had air in line, heater should fire. If it didn't try above steps one more time. If it still does not fire, possible bad gas valve.
I have a laars lite
The control module is not sensing the flame.
You did not list the exact model number but I think this kit will fit your heater.
Check your model number to tell for sure.Flame sense kit
HAVE LAARS LITE TELDYNE GAS
I would want to locate exactly where the leak was coming from and approximate cost for repairs.If you have some gas bills to compare current costs to prior costs and then a estimate to repair you can deceide if the cost to repair offsets the price for wasted gas.
As far as I'm concerned any gas leak that is bad enough to have a large impact on gas bill is bad enough to need fixed.I would recommend that you have a qualified service tech check the unit over and locate leak and estimate cost to repair. I don't have a lot of faith in most gas companies service men and most of their guesses on the severity of a leak are just that
I hope this helps you some.Unless it is a very small leak I would have it fixed. Thank you
Pressure switch light is on so i change it out
Remove the switch and turn the system on to see if you have water coming from the tube it hooks to. If yes you have a bad switch or wire to it, so chech your wires at the switch and at the board. Blow into the switch and see if that helps. If you get no water from the tube start working back from there. If you remove the other end of the tube and still no water it could be a rust clog that you will have to clear with an ice pick or the like. If you have water there then ckeck the tube for clogs or kinks. Replace it if nessary. be sure that your filter is clean and your baskets and impeller are not cloged. If none of this helps then you may need an ignition control. If this is the case you may want to get a repairman involved, just to be sure as the part will be about three or four times a service call and he would be libal if the board dosn't get installed right.
Pilot light on but heater will not start
check the high-limit switches. Under the inlet/outlet header. if either is open it will not allow you to fire up. my 150 degree switch was corroded and after jump9ng out, bam it worked.
Pool heater will not stay lit
Problem with the thermocoupler its not producing a minivolt of 250 plus
that is needed to open the main gas valve
Flame shooting out the front of boiler
You will need to remove your burner tray and clean the burners and make sure their are no rat nests. While you have it out clean the gas orfaces in the main pipe goeing to each burner.
You should probally tear down the top of the heater and clean the heat exchanger at the same time. When doing this don't use wire brush as the soot can explode with just a small spark. With the heater tray out you can use water abn a stiff brush to do this. Then let dry while you clean the burners and when you should be ready to go by the time your done but it would be best to wait a day for the heat wall to dry so you don't get popping when the heat hits it.
Good luck and don't forget to do this each year at the start of the heat season.
We have a teledyne gas furnace whose pilot won't
Is this a standing pilot,or pilot always on.
If so a bad thermocouple will cause pilot to go out.
Thermocouple is a small copper tube running from the pilot light area to the gas valve. easy to replace.
Have an old gas furnace, lit the pilot no problem
Might be the thermostat itself. If your mechanically inclined, then you can jump the wires at the thermostat to see if the thermostat is bad. It will only be 24v, but try to keep from touching the wires themselfs. Use a pair of needle nose pliers with insulated handles. Take off the front cover of the thermostat and you should see the wires. Depending on the wires they have hooked up, normally it is R- Power, W- Heat, Y- A/C, G- Fan. Without touching anything else, take your pliers and put both tips to R and W, hold it there steadily and wait for it to come on, its best to have someone at the furnace to hear it. If it comes on, then the thermostat is bad, if not, I would need more info on the problem. Hope this helps
Pilot on main burner won't light.
30 ohms is too high. You generally need it close to or below 1. You need to read the ohms across each switch to find the connection or switch that is holding up your control voltage from opening the valve. If that still doesn't work, jump the th terminals on the valve and see if the valve even opens. You may need a new valve.
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